16256( 3) - 06-Jul-2020 17:23:47 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16256 Version: 3 Check-in Time: 06-Jul-2020 17:23:47 STScI Edit Number: 0 Title A Sensitive Test for Far Ultraviolet CO absorption in the Outflow of our Nearest Supernova Progenitor - Antares ------------------------------------------------------------------------------------ Type Cycle GO 28 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Graham M. Harper University of Colorado at Boulder Y CoI: Prof. Keiichi Ohnaka Universidad Catolica del Norte N CoI: Dr. Edward F. Guinan Villanova University N CoI: Dr. Thomas R. Ayres University of Colorado at Boulder N ------------------------------------------------------------------------------------ Abstract The massive red supergiant Antares (alpha Sco A: M1 Iab) is an excellent star to test theoretical models of mass loss because its distance, age, stellar parameters, mass-loss rate, and interstellar reddening are well established. The early-M supergiants pose a particular challenge for models of mass loss driven by radiation pressure on molecules and/or dust: The circumstellar molecular abundances and dust-to-gas mass ratios are lower than for later-M spectral-types, but they still manage to drive massive winds. We request deep FUV and NUV observations to perform an extremely sensitive test for the most robust circumstellar molecule, CO, by observing its Fourth-Positive electronic bands against the FUV continuum of the M supergiant Antares. These observations will enable us measure any CO present in the outflow, and to place upper-limits on the effective radiation acceleration it can provide. The proposed observations will also provide an invaluable dataset for Antares, the oft neglected southern twin of Betelgeuse, and our nearest Type II supernova progenitor. ------------------------------------------------------------------------------------ Observations Description ------------------------ This is a STIS spectroscopic program to observe the NUV and FUV spectrum of the M 1.5 Iab supergiant in the Antares (alpha Sco) system. The M supergiant has a B3 V main-sequence orbital companion 2.67 arcsec West (PA=275 deg, Period >1250 years). The bright object constraint for non-variable objects within 5 arcsec of the target, namely the global count rate <200, 00 cnt/s, requires that all the science observations be made with the 31x0.05 NDA aperture. This then requires the use of the ORIENT constraint to avoid placing the B star near the long aperture. ORIENT: To place the long slit (31x0.05 arcsec) perpendicular to the stellar line of centers the +Y-axis should be 275-90=185 deg. The U3 axis is 45 deg from +Y, so the optimum ORIENT value is 185+45 = 230 deg, also in the opposite direction ORIENT=50 deg. We adopt a +/-45 deg ORIENT range on each direction giving bounds for each Visit as 5 to 95 deg AND 185-275 deg. For the safety simulations in the STIS ETC we use the observed B star FUV and 16256( 3) - 06-Jul-2020 17:23:47 - [ 2] NUV spectrum (photospheric continuum) compiled from IUE Large Aperture spectra. For the faint M supergiant the science simulations use a slightly reddened, i.e. additional reddening of E(B-V)=0.1, HST STIS spectra of Betelgeuse (M2 Iab). OBSERVATIONS: ACQ: The ACQ is made with the STIS CCD with the F5ND5 aperture. [The M (V=0.91) star is ~400 times brighter than the B sar (V=5.91)] Using the Castelli & Kurucz model M0I Teff=3650 K with E(B-V)=0.30 V=0.91 a S/N=145 is reached for Texp=0.1 sec. [STIS.ta.1447745] We note that the position and proper motions are the best available (van Leeuwen 2007 Revised Hipparcos) which is tied to the ICRS frame. PEAKUP: The PEAPKUP is made with G430M @5471 Ang in the 31x0.05 NDA aperture (which is also the science aperture). Using the same model, a Texp=0.1 sec gives S/N=100 pre res. element. [STIS.sp.1447778] SCIENCE: The earlier visits include the NUV where the M supergiant is bright enough to check the ACQ/PEAKUP sequence, and system throughout. No Visit schedule constraint is requested. Subsequent Visits are a mix of FUV and NUV spectra, so that the FUV analysis can be initiated towards the beginning of the project. We use ACCUM to increase exposure times, and put AUTO-WAVECAL at end of 2nd and subsequent orbits. Science safety simulations assuming the B star is centered in the aperture, using observed IUE spectra: E230H-2762 STIS sp.1447788 entire detector 159, 196 cnt/s E230H-2513 STIS.sp.1448283 ditto 191, 248 cnt/s E230H-2263 STIS.sp.1448287 ditto 174, 589 cnt/s E140H-1526 STIS.sp.1448300 ditto 170, 242 cnt/s All science observations use the 31x0.05 NDA aperture Visit 1: 3 orbits E230H-2762 - Texp science ~6, 200 sec [more in ACCUM, same for all below] Visit 2: 3 orbits E140H-1598 - Texp science ~6, 200 sec Visit 3: 4 orbits E230H-2513 - Texp science ~8, 500 sec Visit 4: 3 orbits E140H-1598 - Texp science ~6, 200 sec Visit 5: 4 orbits E230H-2263 - Texp science ~6, 200 sec Visit 6: 3 orbits E140H-1598 - Texp science ~6, 200 sec Visit 7: 3 orbits E140H-1598 - Texp science ~6, 200 sec ------------------------------------------------------------------------------------ 16256( 3) - 06-Jul-2020 17:23:47 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 -ALF-SCO STAR, CIRCUMSTELLAR RA=16H29M24.4457S, J2000 V = V = 0.91 +/- 0.15 MATTER, EMISSION LINE DEC=-26D25'55.57" -3.50 STAR, M III-I Reference Frame: ICRS Extended: NO Comments: ICRS Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2015.5 -9.015825259862894E-4 -0.023299999907067104 5.89E-03 ------------------------------------------------------------------------------------------------------------------------------------ 16256( 3) - 06-Jul-2020 17:23:47 - [ 4] Visit: 01 (E230H-c2762 MgII) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: First Visit. Strong stellar signal - use this to verify ACQ and PEAK-UP, and photon throughputs work as intended 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2762 1 1668 S -MAMA A (1668 S) Comments: First science observation ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2762 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2762 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/NUV ACCUM 31X0.05N E230H 2762 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/NUV ACCUM 31X0.05N E230H 2762 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/NUV ACCUM 31X0.05N E230H 2762 none none none none 3 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 5] Visit: 02 (E140H CO Fourth-Positive) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: This Visit should come after Visit 1 - to check the ACQ/PEAK and throughput. FUV spectrum. M supergiant is significantly fainter in the NUV that the FUV. This is the 1st of 4 identical Visits - each of 3 orbits 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 1678 S -MAMA A (1678 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 3 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 6] Visit: 03 (E230H-c2513 MgII) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: First Visit. Strong stellar signal - use this to verify ACQ and PEAK-UP, and photon throughputs work as intended 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2513 1 1668 S -MAMA A (1668 S) Comments: First science observation ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2513 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2513 1 2692 S -MAMA A (2692 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2513 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/NUV ACCUM 31X0.05N E230H 2513 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/NUV ACCUM 31X0.05N E230H 2513 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/NUV ACCUM 31X0.05N E230H 2513 none none none none 3 N/A -MAMA DA -ALF-SCO 6 STIS/NUV ACCUM 31X0.05N E230H 2513 none none none none 4 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 7] Visit: 04 (E140H CO Fourth-Positive) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: FUV spectrum. M supergiant is significantly fainter in the NUV that the FUV. This is the 1st of 4 identical Visits - each of 3 orbits 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 1678 S -MAMA A (1678 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 3 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 8] Visit: 05 (E230H-c2263 MgII) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: Covers emisison lines from C II] 2325 and SI II] 2350 and numerous Fe II lines 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2263 1 1668 S -MAMA A (1668 S) Comments: First science observation ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2263 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2263 1 2692 S -MAMA A (2692 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 -ALF-SCO STIS/NUV ACCUM 31X0.05ND E230H 2263 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/NUV ACCUM 31X0.05N E230H 2263 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/NUV ACCUM 31X0.05N E230H 2263 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/NUV ACCUM 31X0.05N E230H 2263 none none none none 3 N/A -MAMA DA -ALF-SCO 6 STIS/NUV ACCUM 31X0.05N E230H 2263 none none none none 4 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 9] Visit: 06 (E140H CO Fourth-Positive) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: FUV spectrum. M supergiant is significantly fainter in the NUV that the FUV. This is the 1st of 4 identical Visits - each of 3 orbits 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 1678 S -MAMA A (1678 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 3 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 10] Visit: 07 (E140H CO Fourth-Positive) Visit Requirements: ORIENT 5D TO 95 D; ORIENT 185D TO 275 D On Hold Comments: Additional Comments: FUV spectrum. M supergiant is significantly fainter in the NUV that the FUV. This is the 1st of 4 identical Visits - each of 3 orbits 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-SCO STIS/CCD ACQ F25ND5 MIRROR 1 0.1 S (0.1 S) ------------------------------------------------------------------------------------------------------------------------------------ 2 -ALF-SCO STIS/CCD ACQ/PEA 31X0.05ND G430M 5471 1 0.1 S (0.1 K A S) ------------------------------------------------------------------------------------------------------------------------------------ 3 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 1678 S -MAMA A (1678 S) ------------------------------------------------------------------------------------------------------------------------------------ 4 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2743 S -MAMA A (2743 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 -ALF-SCO STIS/FUV ACCUM 31X0.05ND E140H 1526 1 2692 S -MAMA A (2692 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-SCO 1 STIS/CCD ACQ F25ND5 MIRROR none none none none 1 N/A -ALF-SCO 2 STIS/CCD ACQ/PEA 31X0.05N G430M 5471 none none none none 1 N/A K DA -ALF-SCO 3 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 1 N/A -MAMA DA -ALF-SCO 4 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 2 N/A -MAMA DA -ALF-SCO 5 STIS/FUV ACCUM 31X0.05N E140H 1526 none none none none 3 N/A -MAMA DA 16256( 3) - 06-Jul-2020 17:23:47 - [ 11] Summary Form for Proposal 16256 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 31X0.05NDA, F25ND5 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD, STIS/FUV-MAMA, STIS/NUV-MAMA ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 185D TO 275 D, ORIENT 5D TO 95 D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements E140H, E230H, G430M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names -ALF-SCO ------------------------------------------------------------------------------------------------------------------------------------