16263( 7) - 15-Jul-2022 20:39:38 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 16263 Version: 7 Check-in Time: 15-Jul-2022 20:39:38 STScI Edit Number: 4 Title Diagnosing a New Species of Dusty Debris: the Chameleon Debris Disk ------------------------------------------------------------------------------------ Type Cycle GO 28 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. John P. Wisniewski George Mason University Y CoI: Dr. Jamie R. Lomax United States Naval Academy N CoI: Dr. John Henry Debes Space Telescope Science Institute - ESA - N JWST CoI: Dr. Carol A. Grady Eureka Scientific Inc. N CoI: Dr. Anthony Boccaletti Observatoire de Paris - Section de Meudon N CoI: Dr. Alycia J. Weinberger Carnegie Institution of Washington N CoI: Dr. Adam F. Kowalski University of Colorado at Boulder N CoI: Dr. Jessica Arnold Carnegie Institution of Washington N CoI: Mr. Elie Sezestre Institut de Planetologie et N d'Astrophysique de Grenoble ------------------------------------------------------------------------------------ Abstract Two new, potentially causally correlated, observational phenomena have recently been discovered in spatially resolved imagery of debris disks: outward moving features traveling at super-Keplerian velocities and changes in the color of the AU Mic debris disk. To date, these are the only moving structures and the only observed color change seen in spatially resolved debris disks. We propose to use the only observational facility capable of yielding high fidelity optical coronagraphic spectroscopy of AU Mic's disk, HST/STIS, to obtain second epoch G750L and first epoch G430L spectroscopy. These data will enable us to: a) quantify color changes in the disk over a 2x greater time baseline (16 yrs) than previously achieved; b) determine whether the disk's color between 30-45 au continues to change as additional fast moving features pass by; c) better quantify the size of dust grains whose spatial distribution has changed; and d) confirm and better quantify whether small grains populate small (10-30 au) stellocentric distances. Derived grain size distributions will be linked to dynamical models proposed for the origin of fast moving features in this system. ------------------------------------------------------------------------------------ Observations Description ------------------------ The observational setup of our program necessarily follows GO-12512, a precursor program that observed the same targets in G750L with this technique. Each target consists of a sequence of observations: 1. Standard acquisition 2. Peakup - We do the peakup in the smallest available aperture, in BOTH x AND y. Then, for both G430L and G750L gratings, we do the following: 3. Point source spectrum outside of fiducial in 52x0.2 slit 16263( 7) - 15-Jul-2022 20:39:38 - [ 2] 4. Fiducial spectra - maximum integration time for bright sources set by time to saturation of stellar scattered light at edge of the fiducial, minimum integration time for faint sources set by time to achieve source noise limited spectra. Integrations are CR-SPLIT for CR removal. In Phase I, we specifically requested the F2 fiducial (unsupported aperture) because of its superior light rejection. For the science objects, we specify a narrow range of acceptable ORIENTs to position the slit along the disk major axis. We therefore require an absolute orient between 351.6 to 353.6 (+/- 1 degree of tolerance around 352.6). We STRONGLY desire to use the EXACT orient as used in GO-12512, 352.0 degrees. We ask our PC to try to get and maintain this exact setting if at all possible. For G750L only, we do a 5. Flat ------ Calibration Justification ------- PSF observation - This is necessary to be able to subtract off the stellar contribution at every position and wavelength to reveal the spectrum and spatial profile of the disk. Peakup -We want exceptionally good positioning under the fiducial in order to be able to cleanly subtract off the PSF contribution. For all targets (objects and PSFs), we do the peakup IN BOTH X AND Y in the smallest available aperture. Point source spectrum outside of fiducial in 52x0.2 slit - This is necessary for calibrating out any spectral differences between the target and PSFas well as for aiding in photometric calibration G750L flat -CCDFLAT taken with 52X0.2 slit for better defringing of extended-source spectra (narrower slit would be better for defringing point-source spectra). ------------------------------------------------------------------------------------ 16263( 7) - 15-Jul-2022 20:39:38 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 V-AU-MIC STAR, M V-IV RA=20H45M9.5323S +/- 0.1", J2000 V = 8.627 DEC=-31D20'27.23" +/- 0.1" Reference Frame: ICRS Comments: Coordinates are from GSC2.3.2 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.02196682863776824 -0.35989499999999996 0.1028295 ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-191849 STAR, M V-IV RA=20H13M53.3960S +/- 0.1", J2000 V = 7.966 DEC=-45D09'50.47" +/- 0.1" Reference Frame: ICRS Extended: NO Comments: Coordinates from GSC2.3.2 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 2000.0 0.0735837416045318 -0.159744 0.1623212 ------------------------------------------------------------------------------------------------------------------------------------ 16263( 7) - 15-Jul-2022 20:39:38 - [ 4] Visit: 01 (1-au-mic-750) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD; ORIENT 351.6D TO 353.6 D; ORIENT 171.6D TO 173.6 D; AFTER 02 BY 0.7 Orbits TO 1.2 Orbits On Hold Comments: Additional Comments: Point-source and fiducial spectra of AU Mic with G705L. 1) We need to align slit parallel to the disk semi-major axis. The disk PA is 128.6 degrees (Krist et al. 2005). We adopt the setup and assumptions of GO-12512. We require an ORIENT = (128.6, 308.6) + offset angle = (128.6, 308.6) + 45 -1 = (172.6, 352.6) degrees. The (-1) above is an additional offset angle due to the rotation of the slit (we ask our PC to confirm this is still correct). We therefore require an absolute orient between 351.6 to 353.6 (+/- 1 degree of tolerance around 352.6). We STRONGLY desire to use the EXACT orient as used in GO-12512, 352.0 degrees. We ask our PC to try to get and maintain this exact setting if at all possible. 2) It is critical that this visit be scheduled immediately (in the next orbit) following visit "2-hd191849-750" to allow accurate PSF subtraction to occur. 3) Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 4) To get desired ORIENT to schedule, we had to shorten our orbits by about 200 seconds. Once we have a schedule window locked in , we ask our PC to allow us to extend our orbits to the maximum integration time allowed to maintain our required absolute ORIENT (352.0 degrees is most optimal). 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 V-AU-MIC STIS/CCD ACQ F25ND3 MIRROR 1 0.4 S (0.4 S) Comments: SNR = 100, V = 8.61, sp = M1Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 V-AU-MIC STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.4 S (0.4 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 V-AU-MIC STIS/CCD ACCUM 52X0.2E1 G750L 7751 GAIN=1, CR-SPLIT=2 1 0.6 S (0.6 S) Comments: SNR 57 from etc v28.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 CCDFLAT STIS/CCD ACCUM 52X0.2 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G750L 7751 GAIN=1, CR-SPLIT=2 1 1208 S (1208 S) 16263( 7) - 15-Jul-2022 20:39:38 - [ 5] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------------------------------------------------------ 6 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G750L 7751 GAIN=1, CR-SPLIT=2 1 2380 S (2380 S) ------------------------------------------------------------------------------------------------------------------------------------ 7 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G750L 7751 GAIN=1, CR-SPLIT=2 1 2380 S (2380 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-AU-MIC 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-AU-MIC 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND V-AU-MIC 3 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 1 1 N/A V-AU-MIC 3 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 2 1 N/A CCDFLAT 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none 1 none 1 N/A CCDFLAT 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none 2 none 1 N/A V-AU-MIC 5 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 1 1 N/A V-AU-MIC 5 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 2 1 N/A V-AU-MIC 6 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 1 2 N/A V-AU-MIC 6 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 2 2 N/A V-AU-MIC 7 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 1 3 N/A V-AU-MIC 7 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 2 3 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 6] Visit: 02 (2-hd191849-750) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD On Hold Comments: Additional Comments: PSF star red grating. There are no orient or schedule constraints on this visit. Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 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-191849 STIS/CCD ACQ F25ND3 MIRROR 1 0.3 S (0.3 S) Comments: SNR = 100, V = 7.97, sp = M0Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-191849 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.3 S (0.3 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-191849 STIS/CCD ACCUM 52X0.2E1 G750L 7751 GAIN=1, CR-SPLIT=2 1 0.4 S (0.4 S) Comments: SNR 70 from etc v28.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 CCDFLAT STIS/CCD ACCUM 52X0.2 G750L 7751 2 DEF (0 S) ------------------------------------------------------------------------------------------------------------------------------------ 5 HD-191849 STIS/CCD ACCUM 52X0.2F2 G750L 7751 GAIN=1, CR-SPLIT=2 1 1310 S (1310 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-191849 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-191849 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-191849 3 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 1 1 N/A HD-191849 3 STIS/CCD ACCUM 52X0.2E1 G750L 7751 none none none 2 1 N/A CCDFLAT 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none 1 none 1 N/A CCDFLAT 4 STIS/CCD ACCUM 52X0.2 G750L 7751 none none 2 none 1 N/A HD-191849 5 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 1 1 N/A HD-191849 5 STIS/CCD ACCUM 52X0.2F2 G750L 7751 none none none 2 1 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 7] Visit: 03 (3-au-mic-430) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD; ORIENT 351.6D TO 353.6 D; ORIENT 171.6D TO 173.6 D; AFTER 04 BY 0.7 Orbits TO 1.2 Orbits On Hold Comments: Additional Comments: Point-source and fiducial spectra of AU Mic with G430L. 1) We need to align slit parallel to the disk semi-major axis. The disk PA is 128.6 degrees (Krist et al. 2005). We adopt the setup and assumptions of GO-12512. We require an ORIENT = (128.6, 308.6) + offset angle = (128.6, 308.6) + 45 -1 = (172.6, 352.6) degrees. The (-1) above is an additional offset angle due to the rotation of the slit (we ask our PC to confirm this is still correct). We therefore require an absolute orient between 351.6 to 353.6 (+/- 1 degree of tolerance around 352.6). We STRONGLY desire to use the EXACT orient as used in GO-12512, 352.0 degrees. We ask our PC to try to get and maintain this exact setting if at all possible. 2) It is critical that this visit be scheduled immediately (in the next orbit) following visit "4-hd191849-750" to allow accurate PSF subtraction to occur. 3) Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 4) To get desired ORIENT to schedule, we had to shorten our orbits by about 200 seconds. Once we have a schedule window locked in, we ask our PC to allow us to extend our orbits to the maximum integration time allowed to maintain our required absolute ORIENT (352.0 degrees is most optimal). 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 V-AU-MIC STIS/CCD ACQ F25ND3 MIRROR 1 0.4 S (0.4 S) Comments: SNR = 100, V = 8.61, sp = M1Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 V-AU-MIC STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.4 S (0.4 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 V-AU-MIC STIS/CCD ACCUM 52X0.2E1 G430L 4300 GAIN=1, CR-SPLIT=2 1 4.6 S (4.6 S) Comments: SNR 54 from etc v28.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 1380 S (1380 S) ------------------------------------------------------------------------------------------------------------------------------------ 16263( 7) - 15-Jul-2022 20:39:38 - [ 8] Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exp | Target | Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Num | Name | Config | Mode | or FOV |Element |Waveln.| Parameters |Exp| (Total) | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 5 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 2380 S (2380 S) ------------------------------------------------------------------------------------------------------------------------------------ 6 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 2370 S (2370 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-AU-MIC 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-AU-MIC 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND V-AU-MIC 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A V-AU-MIC 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A V-AU-MIC 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 1 N/A V-AU-MIC 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 1 N/A V-AU-MIC 5 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 2 N/A V-AU-MIC 5 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 2 N/A V-AU-MIC 6 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 3 N/A V-AU-MIC 6 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 3 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 9] Visit: 04 (4-hd191849-430) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD On Hold Comments: Additional Comments: PSF star blue grating. There are no orient or schedule constraints on this visit. Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 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-191849 STIS/CCD ACQ F25ND3 MIRROR 1 0.3 S (0.3 S) Comments: SNR = 100, V = 7.97, sp = M0Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-191849 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.3 S (0.3 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-191849 STIS/CCD ACCUM 52X0.2E1 G430L 4300 GAIN=1, CR-SPLIT=2 1 3.2 S (3.2 S) Comments: SNR 65 from etc v28.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-191849 STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 1500 S (1500 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-191849 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-191849 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-191849 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A HD-191849 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A HD-191849 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 1 N/A HD-191849 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 1 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 10] Visit: 53 (5-au-mic-430) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD; ORIENT 351.6D TO 353.6 D; ORIENT 171.6D TO 173.6 D On Hold Comments: Additional Comments: Point-source and fiducial spectra of AU Mic with G430L. 1) We need to align slit parallel to the disk semi-major axis. The disk PA is 128.6 degrees (Krist et al. 2005). We adopt the setup and assumptions of GO-12512. We require an ORIENT = (128.6, 308.6) + offset angle = (128.6, 308.6) + 45 -1 = (172.6, 352.6) degrees. The (-1) above is an additional offset angle due to the rotation of the slit (we ask our PC to confirm this is still correct). We therefore require an absolute orient between 351.6 to 353.6 (+/- 1 degree of tolerance around 352.6). We STRONGLY desire to use the EXACT orient as used in GO-12512, 352.0 degrees. We ask our PC to try to get and maintain this exact setting if at all possible. 2) It is critical that this visit be scheduled immediately (in the next orbit) following visit "4-hd191849-750" to allow accurate PSF subtraction to occur. 3) Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 4) To get desired ORIENT to schedule, we had to shorten our orbits by about 200 seconds. Once we have a schedule window locked in, we ask our PC to allow us to extend our orbits to the maximum integration time allowed to maintain our required absolute ORIENT (352.0 degrees is most optimal). 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 V-AU-MIC STIS/CCD ACQ F25ND3 MIRROR 1 0.4 S (0.4 S) Comments: SNR = 100, V = 8.61, sp = M1Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 V-AU-MIC STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.4 S (0.4 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 V-AU-MIC STIS/CCD ACCUM 52X0.2E1 G430L 4300 GAIN=1, CR-SPLIT=2 1 4.6 S (4.6 S) Comments: SNR 54 from etc v28.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 1120 S (1120 S) ------------------------------------------------------------------------------------------------------------------------------------ 16263( 7) - 15-Jul-2022 20:39:38 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-AU-MIC 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-AU-MIC 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND V-AU-MIC 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A V-AU-MIC 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A V-AU-MIC 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 1 N/A V-AU-MIC 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 1 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 12] Visit: 54 (6-hd191849-430) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD; AFTER 56 BY 0.7 Orbits TO 1.2 Orbits On Hold Comments: Additional Comments: PSF star blue grating. There are no orient or schedule constraints on this visit. Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 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-191849 STIS/CCD ACQ F25ND3 MIRROR 1 0.3 S (0.3 S) Comments: SNR = 100, V = 7.97, sp = M0Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 HD-191849 STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.3 S (0.3 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 HD-191849 STIS/CCD ACCUM 52X0.2E1 G430L 4300 GAIN=1, CR-SPLIT=2 1 3.2 S (3.2 S) Comments: SNR 65 from etc v28.2 ------------------------------------------------------------------------------------------------------------------------------------ 4 HD-191849 STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 1100 S (1100 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-191849 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A HD-191849 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND HD-191849 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 1 1 N/A HD-191849 3 STIS/CCD ACCUM 52X0.2E1 G430L 4300 none none none 2 1 N/A HD-191849 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 1 N/A HD-191849 4 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 1 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 13] Visit: 55 (7-au-mic-430) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD; ORIENT 351.6D TO 353.6 D; ORIENT 171.6D TO 173.6 D; AFTER 53 BY 0.7 Orbits TO 1.2 Orbits On Hold Comments: Additional Comments: Point-source and fiducial spectra of AU Mic with G430L. 1) We need to align slit parallel to the disk semi-major axis. The disk PA is 128.6 degrees (Krist et al. 2005). We adopt the setup and assumptions of GO-12512. We require an ORIENT = (128.6, 308.6) + offset angle = (128.6, 308.6) + 45 -1 = (172.6, 352.6) degrees. The (-1) above is an additional offset angle due to the rotation of the slit (we ask our PC to confirm this is still correct). We therefore require an absolute orient between 351.6 to 353.6 (+/- 1 degree of tolerance around 352.6). We STRONGLY desire to use the EXACT orient as used in GO-12512, 352.0 degrees. We ask our PC to try to get and maintain this exact setting if at all possible. 2) It is critical that this visit be scheduled immediately (in the next orbit) following visit "4-hd191849-750" to allow accurate PSF subtraction to occur. 3) Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 4) To get desired ORIENT to schedule, we had to shorten our orbits by about 200 seconds. Once we have a schedule window locked in, we ask our PC to allow us to extend our orbits to the maximum integration time allowed to maintain our required absolute ORIENT (352.0 degrees is most optimal). 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 V-AU-MIC STIS/CCD ACQ F25ND3 MIRROR 1 0.4 S (0.4 S) Comments: SNR = 100, V = 8.61, sp = M1Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 V-AU-MIC STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.4 S (0.4 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 1320 S (1320 S) ------------------------------------------------------------------------------------------------------------------------------------ 16263( 7) - 15-Jul-2022 20:39:38 - [ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-AU-MIC 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-AU-MIC 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND V-AU-MIC 3 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 1 N/A V-AU-MIC 3 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 1 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 15] Visit: 56 (8-au-mic-430) Visit Requirements: PCS MODE FINE; GUID TOL 0.05"; GYRO MODE 3GOBAD; ORIENT 351.6D TO 353.6 D; ORIENT 171.6D TO 173.6 D; AFTER 55 BY 0.7 Orbits TO 1.2 Orbits On Hold Comments: Additional Comments: Point-source and fiducial spectra of AU Mic with G430L. 1) We need to align slit parallel to the disk semi-major axis. The disk PA is 128.6 degrees (Krist et al. 2005). We adopt the setup and assumptions of GO-12512. We require an ORIENT = (128.6, 308.6) + offset angle = (128.6, 308.6) + 45 -1 = (172.6, 352.6) degrees. The (-1) above is an additional offset angle due to the rotation of the slit (we ask our PC to confirm this is still correct). We therefore require an absolute orient between 351.6 to 353.6 (+/- 1 degree of tolerance around 352.6). We STRONGLY desire to use the EXACT orient as used in GO-12512, 352.0 degrees. We ask our PC to try to get and maintain this exact setting if at all possible. 2) It is critical that this visit be scheduled immediately (in the next orbit) following visit "4-hd191849-750" to allow accurate PSF subtraction to occur. 3) Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). 4) To get desired ORIENT to schedule, we had to shorten our orbits by about 200 seconds. Once we have a schedule window locked in, we ask our PC to allow us to extend our orbits to the maximum integration time allowed to maintain our required absolute ORIENT (352.0 degrees is most optimal). 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 V-AU-MIC STIS/CCD ACQ F25ND3 MIRROR 1 0.4 S (0.4 S) Comments: SNR = 100, V = 8.61, sp = M1Ve, Exptime rounded to nearest 0.1 second ------------------------------------------------------------------------------------------------------------------------------------ 2 V-AU-MIC STIS/CCD ACQ/PEA 0.2X0.05N MIRROR 1 0.4 S (0.4 K D S) Comments: Peak-up in x and y required for accurate positioning of star under fiducial bar (short slit peak-up). ------------------------------------------------------------------------------------------------------------------------------------ 3 V-AU-MIC STIS/CCD ACCUM 52X0.2F2 G430L 4300 GAIN=1, CR-SPLIT=2 1 1320 S (1320 S) ------------------------------------------------------------------------------------------------------------------------------------ 16263( 7) - 15-Jul-2022 20:39:38 - [ 16] 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 | ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ V-AU-MIC 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-AU-MIC 2 STIS/CCD ACQ/PEA 0.2X0.05 MIRROR none none none none 1 N/A K ND V-AU-MIC 3 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 1 1 N/A V-AU-MIC 3 STIS/CCD ACCUM 52X0.2F2 G430L 4300 none none none 2 1 N/A 16263( 7) - 15-Jul-2022 20:39:38 - [ 17] Summary Form for Proposal 16263 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 0.2X0.05ND, 52X0.2, 52X0.2E1, 52X0.2F2, F25ND3 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=2, GAIN=1 ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements AFTER 02 BY 0.7 Orbits TO 1.2 Orbits, AFTER 04 BY 0.7 Orbits TO 1.2 Orbits, AFTER 53 BY 0.7 Orbits TO 1.2 Orbits, AFTER 55 BY 0.7 Orbits TO 1.2 Orbits, AFTER 56 BY 0.7 Orbits TO 1.2 Orbits, GUID TOL 0.05", GYRO MODE 3GOBAD, ORIENT 171.6D TO 173.6 D, ORIENT 351.6D TO 353.6 D, PCS MODE FINE ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G430L, G750L, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names CCDFLAT, HD-191849, V-AU-MIC ------------------------------------------------------------------------------------------------------------------------------------