17459( 12) - 19-Feb-2026 15:37:57 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 17459 Version: 12 Check-in Time: 19-Feb-2026 15:37:57 STScI Edit Number: 10 Title High-resolution imaging of Fomalhaut's newly discovered intermediate dust belt to precisely measure the planetary system geometry ------------------------------------------------------------------------------------ Type Cycle GO 31 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Paul George Kalas University of California - Berkeley Y CoI: Prof. Mark Wyatt University of Cambridge N CoI: Dr. Grant Kennedy University of Warwick N CoI: Dr. Michael P. Fitzgerald University of California - Los Angeles N CoI: Dr. Maxwell Andrew University of California - Santa Barbara N Millar-Blanchaer CoI: Dr. Robert J De Rosa European Southern Observatory - Chile N CoI: Dr. Jason J. Wang Northwestern University N ------------------------------------------------------------------------------------ Abstract The dusty debris belts surrounding the nearby star Fomalhaut show indirect evidence for hidden planets gravitationally sculpting the system. Fomalhaut has been studied by every major observatory and interpreted through many theory papers, demonstrating wide interest by the astronomical community. The most recent breakthrough comes from JWST/MIRI images that reveal the existence of an intermediate dust belt at ~100 au not previously seen in any other data set. Here we show that the intermediate belt can be detected in dust-scattered light in archival STIS data. However, these observations used a subarray that limited the detection to roughly 90 degrees along the belt's minor axis. Here we propose new observations that increase both the field of view and integration time to map the entire intermediate belt in dust-scattered light. These data will exceed JWST/MIRI's angular resolution by a factor of seven and enable a precise measurement of the belt's geometric properties. The results will show to what extent the intermediate belt is misaligned with the inner asteroid belt analog and the outer belt. Its stellocentric offset will be measured to the same precision as the outer belt, and the radial gap between belts will give theorists more precise information on modeling the properties of hypothesized planets inferred to exist between the belts. ------------------------------------------------------------------------------------ Observations Description ------------------------ The goal is to image Fomalhaut's intermediate dust belt, which is expected to be brightest along its eastern hemisphere (PA~0-180), which is the forward scattering direction. For PSF subtraction we have two PSF reference stars Vega and Theta Peg that will be observed at any ORIENT before and after three orbits of Fomalhaut observations. Each Fomalhaut observation has ORIENT constraints and ORIENT FROM commands in order to roll the telescope up to 30 degrees. The ORIENT constraints are chosen so that as much of the intermediate belt is imaged given that the STIS occulting wedge and diffraction spikes are blocking a large fraction of the field of view. All observations will be made with the stars acquired behind WEDGEB2.0. 17459( 12) - 19-Feb-2026 15:37:57 - [ 2] Integration times are chosen so as not to saturate the pixels close to the edge of the wedge. In order to maximize the total integration time, we use a subarray of 700 pixels to reduce readout times. In order to perform PSF subtraction using the PSF reference stars, the first group of five VISITS (i.e. orbits) should be executed consecutively, without interruptions, so that the PSF variations from orbit to orbit are minimized. To achieve this we use a SEQUENCE constraint starting from Visit 01. The same procedure is implemented for the second group of five VISITS (05-10) with the sequence command starting from Visit 05. The PSF reference stars also have an ORIENT FROM command so that Vega in Visit 01 is not imaged at exactly the same ORIENT in Visit 06, and likewise with theta Peg. If there are background stars in the field we would prefer to have them moved to different detector positions between each pair of orbits. ------------------------------------------------------------------------------------ 17459( 12) - 19-Feb-2026 15:37:57 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STAR, A4-A9 V-IV, DISK, RA=22H57M39.0463S +/- 0.1", J2000 V = 1.16 EXTRA-SOLAR PLANETARY DEC=-29D37'20.05" +/- 0.1" SYSTEM Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0252271023450455 -0.16467000000375265 0.130 ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-LYR STAR, A0-A3 V-IV RA=18H36M56.3364S +/- 0.1", J2000 V = 0.03 DEC=+38D47'1.28" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.01718501552262967 0.28623000000000004 0.130 ------------------------------------------------------------------------------------------------------------------------------------ 3 -TET-PEG STAR, A0-A3 V-IV RA=22H10M11.9886S +/- 0.1", J2000 V = 3.55 DEC=+06D11'52.52" +/- 0.1" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.017817411578746153 0.010407 0.037 ------------------------------------------------------------------------------------------------------------------------------------ 17459( 12) - 19-Feb-2026 15:37:57 - [ 4] Visit: 01 (Vega) Visit Requirements: SCHED 100%; SEQ 01, 02, 03, 04, 05 WITHIN 4.8 Orbits On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-LYR STIS/CCD ACQ F25ND5 MIRROR 1 0.7 S (0.7 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-LYR STIS/CCD ACCUM WEDGEA2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-LYR STIS/CCD ACCUM WEDGEA2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-LYR STIS/CCD ACCUM WEDGEA2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-LYR STIS/CCD ACCUM WEDGEA2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-LYR STIS/CCD ACCUM WEDGEA2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-LYR STIS/CCD ACCUM WEDGEA2.0 MIRROR GAIN=4, CR-SPLIT=4, 1 1.6 S (1.6 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-LYR 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 5] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-LYR 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 6] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-LYR 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 7] Visit: 02 (Fomalhaut) Visit Requirements: SCHED 100% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STIS/CCD ACQ F25ND5 MIRROR 1 2 S (2 S) GS ACQ SCENARIO ONEB1O ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=4, SIZEAXIS2=700, 1 4.8 S (4.8 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 8] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 9] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 10] Visit: 03 (Fomalhaut) Visit Requirements: SCHED 100%; ORIENT 12D TO 13D FROM 02 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STIS/CCD ACQ F25ND5 MIRROR 1 2 S (2 S) GS ACQ SCENARIO ONEB1O ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=4, SIZEAXIS2=700, 1 4.8 S (4.8 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 11] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 12] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 13] Visit: 04 (Fomalhaut) Visit Requirements: SCHED 50%; ORIENT 24D TO 26D FROM 02 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STIS/CCD ACQ F25ND5 MIRROR 1 2 S (2 S) GS ACQ SCENARIO ONEB1O ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-PSA STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=4, SIZEAXIS2=700, 1 4.8 S (4.8 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 14] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 15] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 16] Visit: 05 (Theta Peg) Visit Requirements: SCHED 70% On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -TET-PEG STIS/CCD ACQ F25ND5 MIRROR 1 3 S (3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -TET-PEG STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -TET-PEG STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -TET-PEG STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -TET-PEG STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -TET-PEG STIS/CCD ACCUM WEDGEA2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -TET-PEG 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 17] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 1 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 2 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 3 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 4 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 5 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 18] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 6 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEA2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 19] Visit: 06 (Vega) Visit Requirements: SCHED 70%; ORIENT 2D TO 20D FROM 01; SEQ 06, 07, 08, 09, 10 WITHIN 4.8 Orbits On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-LYR STIS/CCD ACQ F25ND5 MIRROR 1 0.7 S (0.7 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-LYR STIS/CCD ACCUM WEDGEB2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-LYR STIS/CCD ACCUM WEDGEB2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-LYR STIS/CCD ACCUM WEDGEB2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-LYR STIS/CCD ACCUM WEDGEB2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-LYR STIS/CCD ACCUM WEDGEB2.0 MIRROR GAIN=4, CR-SPLIT=8, 1 3.2 S (3.2 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-LYR STIS/CCD ACCUM WEDGEB2.0 MIRROR GAIN=4, CR-SPLIT=4, 1 1.6 S (1.6 SIZEAXIS2=700 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-LYR 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 20] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-LYR 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-LYR 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-LYR 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 21] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-LYR 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-LYR 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-LYR 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 22] Visit: 07 (Fomalhaut) Visit Requirements: SCHED 100%; ORIENT 1D TO 2D FROM 02 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STIS/CCD ACQ F25ND5 MIRROR 1 2 S (2 S) GS ACQ SCENARIO ONEB1O ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=4, SIZEAXIS2=700, 1 4.8 S (4.8 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 23] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 24] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 25] Visit: 08 (Fomalhaut) Visit Requirements: SCHED 100%; ORIENT 1D TO 2D FROM 03 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STIS/CCD ACQ F25ND5 MIRROR 1 2 S (2 S) GS ACQ SCENARIO ONEB1O ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=4, SIZEAXIS2=700, 1 4.8 S (4.8 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 26] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 27] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 28] Visit: 09 (Fomalhaut) Visit Requirements: SCHED 100%; ORIENT 1D TO 2D FROM 04 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-PSA STIS/CCD ACQ F25ND5 MIRROR 1 2 S (2 S) GS ACQ SCENARIO ONEB1O ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=8, SIZEAXIS2=700, 1 9.6 S (9.6 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 -ALF-PSA STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=4, SIZEAXIS2=700, 1 4.8 S (4.8 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 29] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 30] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -ALF-PSA 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -ALF-PSA 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 8 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -ALF-PSA 7 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 31] Visit: 10 (Theta Peg) Visit Requirements: SCHED 100%; ORIENT 2D TO 10D FROM 05 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 -TET-PEG STIS/CCD ACQ F25ND5 MIRROR 1 3 S (3 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -TET-PEG STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -TET-PEG STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -TET-PEG STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -TET-PEG STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -TET-PEG STIS/CCD ACCUM WEDGEB2.0 MIRROR CR-SPLIT=7, SIZEAXIS2=700, 1 70 S (70 GAIN=4 S) ------------------------------------------------------------------------------------------------------------------------------------ Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -TET-PEG 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -TET-PEG 2 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 32] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -TET-PEG 3 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -TET-PEG 4 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -TET-PEG 5 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 1 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 2 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 3 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 4 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 5 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 33] Sub Exposures ------------------------------------------------------------------------------------------------------------------------------------ Target | Exp |Instr | Oper. | Aper |Spectral|Cent.|Primary |Secondary |Iteration |CR-SPLIT |Orbit |Duration Name | Num |Config | Mode | or FOV |Element |Wave.|Pattern Pos |Pattern Pos |Num |Num |Number | ------------------------------------------------------------------------------------------------------------------------------------ -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 6 1 N/A 0 -TET-PEG 6 STIS/CCD ACCUM WEDGEB2. MIRROR none none none 7 1 N/A 0 17459( 12) - 19-Feb-2026 15:37:57 - [ 34] Summary Form for Proposal 17459 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures F25ND5, WEDGEA2.0, WEDGEB2.0 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=4, CR-SPLIT=7, CR-SPLIT=8, GAIN=4, SIZEAXIS2=700 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements GS ACQ SCENARIO ONEB1O, ORIENT 12D TO 13D FROM 02, ORIENT 1D TO 2D FROM 02, ORIENT 1D TO 2D FROM 03, ORIENT 1D TO 2D FROM 04, ORIENT 24D TO 26D FROM 02, ORIENT 2D TO 10D FROM 05, ORIENT 2D TO 20D FROM 01, SCHED 100%, SCHED 50%, SCHED 70%, SEQ 01, 02, 03, 04, 05 WITHIN 4.8 Orbits, SEQ 06, 07, 08, 09, 10 WITHIN 4.8 Orbits ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names -ALF-LYR, -ALF-PSA, -TET-PEG ------------------------------------------------------------------------------------------------------------------------------------