18001( 7) - 17-Mar-2026 18:33:27 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 18001 Version: 7 Check-in Time: 17-Mar-2026 18:33:27 STScI Edit Number: 0 Title Completing Panchromatic Spectra for High Priority HWO Target Stars ------------------------------------------------------------------------------------ Type Cycle GO 33 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Sarah Peacock University of Maryland Baltimore County Y CoI: Dr. Breanna Binder Cal Poly Pomona Foundation, Inc. N CoI: Dr. Edward Wade Schwieterman University of California - Riverside N CoI: Dr. Margaret Turnbull SETI Institute N CoI: Prof. Stephen Kane University of California - Riverside N CoI: Dr. Allison Youngblood NASA Goddard Space Flight Center N CoI: Dr. Keighley Elizabeth Rockcliffe University of Maryland Baltimore County N CoI: Dr. David John Wilson University of Colorado at Boulder N ------------------------------------------------------------------------------------ Abstract The Habitable Worlds Observatory (HWO) will enable the first direct imaging and spectral characterization of terrestrial exoplanets in the habitable zones of nearby stars. However, interpreting these spectra and assessing planetary habitability requires a complete understanding of the high-energy stellar radiation that drives atmospheric chemistry and photochemistry. While some HWO target stars have existing X-ray or UV observations, most lack high-quality data across the full high-energy spectrum. Only 1/3 have either FUV or NUV HST spectra and 1/5 have both. Likewise, only a fraction have X-ray measurements, limiting our ability to construct comprehensive stellar SEDs. We propose FUV and NUV spectroscopy of 10 key stars that currently lack full UV coverage but have existing X-ray data, enabling self-consistent panchromatic SEDs for a subset of HWO's most promising targets. These observations will provide critical missing constraints on stellar radiation environments, allowing for improved exoplanet atmosphere modeling, photochemical studies, and biosignature detectability assessments. Specifically, this dataset will: (1) establish a high-energy spectral library for a representative sample of HWO-relevant stars, (2) refine stellar atmosphere models to improve planetary atmospheric retrievals, (3) constrain interstellar medium attenuation for Lyman alpha and EUV reconstructions, and (4) lay the groundwork for future studies on stellar activity, atmospheric escape, and exoplanet habitability. By securing these data now, we ensure that HWO operates with the most complete empirical understanding of its target stars, maximizing its scientific return. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will use two observing modes on STIS to measure a complete UV dataset for each of the proposed target stars, requesting a total of 37 orbits: The NUV observations will be taken with the E230H high resolution echelle (R = 114, 000), centered at 2713 A, which includes Fe II lines at 2586 and 2600 A and the Mg II doublet at 2796 and 2803 A. We choose the 0".2x0".09 slit to 18001( 7) - 17-Mar-2026 18:33:27 - [ 2] optimize resolution, similar to what has been done for most HWO target stars with existing NUV observations. Beta Com and GL 117 have archival measurements with this mode, so we do not seek to re-observe these two targets. Two additional targets, eta Crv and beta Vir, exceed the bright object limits with the 0".2x0".09 slit, so we opt to use a neutral density filter (0".2x0".05 ND) to reduce the UV throughput. The FUV observations will be taken with the E140M medium resolution echelle (R = 45, 800), centered at 1425 A. The 1144-1730 A wavelength range samples several emission lines, including Lyman alpha (1215.67 A) and the N V (1240 A), Si IV (1400 A), and C IV (1550 A) doublets. We choose the 0."2x0".2 slit for these observations because they have been used successfully for similar HWO target stars with existing FUV observations. ------------------------------------------------------------------------------------ 18001( 7) - 17-Mar-2026 18:33:27 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 -ETA-CRV STAR, F0-F2 RA=12H32M4.2264S, J2000 V = 4.294 DEC=-16D11'45.62" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.029476288179223376 -0.05824099996516452 0.0548135 ------------------------------------------------------------------------------------------------------------------------------------ 2 -BET-VIR STAR, F3-F9 RA=11H50M41.7185S, J2000 V = 3.6 DEC=+01D45'53.00" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.0494064996293759 -0.2709269999513708 0.09089449999999999 ------------------------------------------------------------------------------------------------------------------------------------ 3 -BET-COM STAR, G V-IV RA=13H11M52.3938S, J2000 V = 4.25 DEC=+27D52'41.46" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.06038996698933397 0.8823009999999999 0.10872499999999999 ------------------------------------------------------------------------------------------------------------------------------------ 18001( 7) - 17-Mar-2026 18:33:27 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-193664 STAR, G V-IV RA=20H17M31.3281S, J2000 V = 5.86 +/- 0.1 DEC=+66D51'13.28" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.07948906889496304 0.297589 0.057204099999999994 ------------------------------------------------------------------------------------------------------------------------------------ 5 -ZET01-RET STAR, G V-IV RA=03H17M46.1635S, J2000 V = 5.54 DEC=-62D34'31.15" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.1935999080275038 0.6498400000000001 0.083024 ------------------------------------------------------------------------------------------------------------------------------------ 6 HD-76151 STAR, G V-IV RA=08H54M17.9471S, J2000 V = 6.0 DEC=-05D26'4.05" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.027701044354494848 0.030619000000000004 0.059359499999999996 ------------------------------------------------------------------------------------------------------------------------------------ 18001( 7) - 17-Mar-2026 18:33:27 - [ 5] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 7 -11-LMI STAR, G V-IV RA=09H35M39.5022S, J2000 V = 5.34 DEC=+35D48'36.48" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.05972458040210803 -0.25905699990289577 0.08900920000000001 ------------------------------------------------------------------------------------------------------------------------------------ 8 HD-17925 STAR, K V-IV RA=02H52M32.1282S, J2000 V = 6.05 DEC=-12D46'10.97" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.027162016434985246 -0.18928099996173842 0.09652 ------------------------------------------------------------------------------------------------------------------------------------ 9 HD-50281 STAR, K V-IV RA=06H52M18.0505S, J2000 V = 6.59 DEC=-05D10'25.37" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 -0.03639427485598742 -0.003515000003062596 0.11435469999999999 ------------------------------------------------------------------------------------------------------------------------------------ 18001( 7) - 17-Mar-2026 18:33:27 - [ 6] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 10 HD-131977 STAR, K V-IV RA=14H57M28.0008S, J2000 V = 5.72 DEC=-21D24'55.73" Reference Frame: ICRS Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. SIMBAD listed proper motion for this target. When retrieving targets with PM from SIMBAD, APT requests the coordinates be calculated with an epoch of the year 2000. Do not modify this epoch. Always review coordinates using the Target Confirmation tool, which graphically displays the PM. Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000 0.07386462043448444 -1.7236189999493945 0.1698843 ------------------------------------------------------------------------------------------------------------------------------------ 18001( 7) - 17-Mar-2026 18:33:27 - [ 7] Visit: 01 (eta Crv) Visit Requirements: 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 -ETA-CRV STIS/CCD ACQ F25ND5 MIRROR 1 0.9 S (0.9 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ETA-CRV STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 -ETA-CRV STIS/NUV TIME-TA 0.2X0.05N E230H 2713 BUFFER-TIME=732 1 1433 S -MAMA G D (1433 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ETA-CRV STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1283 1 2566 S -MAMA G (2566 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 | ------------------------------------------------------------------------------------------------------------------------------------ -ETA-CRV 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ETA-CRV 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND -ETA-CRV 3 STIS/NUV TIME-TA 0.2X0.05 E230H 2713 none none none none 1 N/A -MAMA G ND -ETA-CRV 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 8] Visit: 02 (beta Vir) Visit Requirements: 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 -BET-VIR STIS/CCD ACQ F25ND5 MIRROR 1 0.4 S (0.4 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -BET-VIR STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 0.5 S (0.5 K D S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -BET-VIR STIS/NUV TIME-TA 0.2X0.05N E230H 2713 BUFFER-TIME=794 1 1451 S -MAMA G D (1451 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -BET-VIR STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1284 1 2569 S -MAMA G (2569 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 | ------------------------------------------------------------------------------------------------------------------------------------ -BET-VIR 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -BET-VIR 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND -BET-VIR 3 STIS/NUV TIME-TA 0.2X0.05 E230H 2713 none none none none 1 N/A -MAMA G ND -BET-VIR 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 9] Visit: 03 (beta Com) Visit Requirements: 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 -BET-COM STIS/CCD ACQ F25ND5 MIRROR 1 0.7 S (0.7 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -BET-COM STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1027 1 2055 S -MAMA G (2055 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 | ------------------------------------------------------------------------------------------------------------------------------------ -BET-COM 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -BET-COM 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 10] Visit: 04 (GL 788) Visit Requirements: 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 HD-193664 STIS/CCD ACQ F25ND5 MIRROR 1 3.2 S (3.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-193664 STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-193664 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 BUFFER-TIME=104 1 1590 S -MAMA G (1590 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-193664 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-193664 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND HD-193664 3 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 none none none none 1 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 11] Visit: 05 (GL 788) Visit Requirements: 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 HD-193664 STIS/CCD ACQ F25ND5 MIRROR 1 3.2 S (3.2 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-193664 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1077 1 2154 S -MAMA G (2154 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-193664 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1341 1 2682 S -MAMA G (2682 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-193664 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1341 1 2682 S -MAMA G (2682 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-193664 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-193664 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G HD-193664 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G HD-193664 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 12] Visit: 06 (zeta Ret) Visit Requirements: 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 -ZET01-RET STIS/CCD ACQ F25ND5 MIRROR 1 2.4 S (2.4 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ZET01-RET STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 -ZET01-RET STIS/NUV TIME-TA 0.2X0.09 E230H 2713 BUFFER-TIME=122 1 1566 S -MAMA G (1566 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 | ------------------------------------------------------------------------------------------------------------------------------------ -ZET01-RET 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ZET01-RET 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND -ZET01-RET 3 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 none none none none 1 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 13] Visit: 07 (zeta Ret) Visit Requirements: 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 -ZET01-RET STIS/CCD ACQ F25ND5 MIRROR 1 2.4 S (2.4 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ZET01-RET STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1065 1 2130 S -MAMA G (2130 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ZET01-RET STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1327 1 2654 S -MAMA G (2654 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ZET01-RET STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1327 1 2654 S -MAMA G (2654 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 | ------------------------------------------------------------------------------------------------------------------------------------ -ZET01-RET 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ZET01-RET 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G -ZET01-RET 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G -ZET01-RET 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 14] Visit: 08 (GL 327) Visit Requirements: 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 HD-76151 STIS/CCD ACQ F25ND5 MIRROR 1 3.6 S (3.6 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-76151 STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-76151 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 BUFFER-TIME=179 1 1473 S -MAMA G (1473 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-76151 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1273 1 2547 S -MAMA G (2547 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-76151 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-76151 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND HD-76151 3 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 none none none none 1 N/A -MAMA G HD-76151 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 15] Visit: 09 (GL 327) Visit Requirements: 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 HD-76151 STIS/CCD ACQ F25ND5 MIRROR 1 3.6 S (3.6 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-76151 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1018 1 2037 S -MAMA G (2037 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-76151 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1283 1 2567 S -MAMA G (2567 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-76151 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1283 1 2567 S -MAMA G (2567 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-76151 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-76151 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G HD-76151 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G HD-76151 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 16] Visit: 10 (LHS 2156) Visit Requirements: 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 -11-LMI STIS/CCD ACQ F25ND5 MIRROR 1 1.8 S (1.8 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -11-LMI STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 -11-LMI STIS/NUV TIME-TA 0.2X0.09 E230H 2713 BUFFER-TIME=172 1 1476 S -MAMA G (1476 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -11-LMI STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1291 1 2582 S -MAMA G (2582 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 | ------------------------------------------------------------------------------------------------------------------------------------ -11-LMI 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -11-LMI 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND -11-LMI 3 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 none none none none 1 N/A -MAMA G -11-LMI 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 17] Visit: 11 (LHS 2156) Visit Requirements: 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 -11-LMI STIS/CCD ACQ F25ND5 MIRROR 1 1.8 S (1.8 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -11-LMI STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1030 1 2060 S -MAMA G (2060 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -11-LMI STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1291 1 2582 S -MAMA G (2582 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -11-LMI STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1291 1 2582 S -MAMA G (2582 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 | ------------------------------------------------------------------------------------------------------------------------------------ -11-LMI 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -11-LMI 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G -11-LMI 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G -11-LMI 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 18] Visit: 12 (GL 117) Visit Requirements: 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 HD-17925 STIS/CCD ACQ F25ND5 MIRROR 1 3.5 S (3.5 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-17925 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1017 1 2034 S -MAMA G (2034 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-17925 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1282 1 2564 S -MAMA G (2564 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-17925 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-17925 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G HD-17925 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 19] Visit: 13 (GL 117) Visit Requirements: 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 HD-17925 STIS/CCD ACQ F25ND5 MIRROR 1 3.5 S (3.5 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-17925 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1017 1 2034 S -MAMA G (2034 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-17925 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1282 1 2564 S -MAMA G (2564 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-17925 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-17925 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G HD-17925 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 20] Visit: 14 (LHS 1875) Visit Requirements: 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 HD-50281 STIS/CCD ACQ F25ND5 MIRROR 1 4.7 S (4.7 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-50281 STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-50281 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 BUFFER-TIME=1057 1 1469 S -MAMA G (1469 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-50281 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1274 1 2547 S -MAMA G (2547 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 HD-50281 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1284 1 2567 S -MAMA G (2567 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-50281 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-50281 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND HD-50281 3 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 none none none none 1 N/A -MAMA G HD-50281 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G HD-50281 5 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 21] Visit: 15 (LHS 1875) Visit Requirements: 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 HD-50281 STIS/CCD ACQ F25ND5 MIRROR 1 4.7 S (4.7 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-50281 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1017 1 2033 S -MAMA G (2033 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-50281 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1284 1 2567 S -MAMA G (2567 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-50281 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=1284 1 2567 S -MAMA G (2567 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-50281 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-50281 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G HD-50281 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G HD-50281 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 22] Visit: 16 (GJ 570 A) Visit Requirements: 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 HD-131977 STIS/CCD ACQ F25ND5 MIRROR 1 2.1 S (2.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-131977 STIS/CCD ACQ/PEA 0.3X0.05N MIRROR 1 1 S (1 S) K D ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-131977 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 BUFFER-TIME=741 1 1481 S -MAMA G (1481 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-131977 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-131977 2 STIS/CCD ACQ/PEA 0.3X0.05 MIRROR none none none none 1 N/A K ND HD-131977 3 STIS/NUV TIME-TA 0.2X0.09 E230H 2713 none none none none 1 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 23] Visit: 17 (GJ 570 A) Visit Requirements: 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 HD-131977 STIS/CCD ACQ F25ND5 MIRROR 1 2.1 S (2.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-131977 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=8620 1 2045 S -MAMA G (2045 S) ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-131977 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=8620 1 2569 S -MAMA G (2569 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-131977 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 BUFFER-TIME=8620 1 2569 S -MAMA G (2569 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 | ------------------------------------------------------------------------------------------------------------------------------------ HD-131977 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A HD-131977 2 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 1 N/A -MAMA G HD-131977 3 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 2 N/A -MAMA G HD-131977 4 STIS/FUV TIME-TA 0.2X0.2 E140M 1425 none none none none 3 N/A -MAMA G 18001( 7) - 17-Mar-2026 18:33:27 - [ 24] Summary Form for Proposal 18001 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.05ND, 0.2X0.09, 0.2X0.2, 0.3X0.05ND, F25ND5 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ, ACQ/PEAK, TIME-TAG ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters BUFFER-TIME=1017, BUFFER-TIME=1018, BUFFER-TIME=1027, BUFFER-TIME=1030, BUFFER-TIME=104, BUFFER-TIME=1057, BUFFER-TIME=1065, BUFFER-TIME=1077, BUFFER-TIME=122, BUFFER-TIME=1273, BUFFER-TIME=1274, BUFFER-TIME=1282, BUFFER-TIME=1283, BUFFER-TIME=1284, BUFFER-TIME=1291, BUFFER-TIME=1327, BUFFER-TIME=1341, BUFFER-TIME=172, BUFFER-TIME=179, BUFFER-TIME=732, BUFFER-TIME=741, BUFFER-TIME=794, BUFFER-TIME=8620 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E140M, E230H, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names -11-LMI, -BET-COM, -BET-VIR, -ETA-CRV, -ZET01-RET, HD-131977, HD-17925, HD-193664, HD-50281, HD-76151 ------------------------------------------------------------------------------------------------------------------------------------