15076( 3) - 19-Jul-2017 13:48:00 - [ 1] HUBBLE SPACE TELESCOPE OBSERVING PROGRAM 15076 Version: 3 Check-in Time: 19-Jul-2017 13:48:00 STScI Edit Number: 0 Title The Recent Mass Loss History of the Red Hypergiant VY CMa ------------------------------------------------------------------------------------ Type Cycle GO 25 ------------------------------------------------------------------------------------ Investigators Contact? PI: Dr. Roberta M. Humphreys University of Minnesota - Twin Cities Y CoI: Mr. Michael S Gordon University of Minnesota - Twin Cities N CoI: Dr. Terry J. Jones University of Minnesota - Twin Cities N CoI: Dr. Anita Richards University of Manchester N CoI: Dr. Kazunori Ishibashi Nagoya University N CoI: Mr. Theo Khouri Chalmers University of Technology/Onsala N Space Obs. CoI: Prof. Wouter Vlemmings Chalmers University of Technology/Onsala N Space Obs. CoI: Dr. L. Andrew Helton Universities Space Research Association N CoI: Dr. Lucy Ziurys University of Arizona N ------------------------------------------------------------------------------------ Abstract The high mass loss episodes observed in evolved massive stars across the HR Diagram remain a mystery. With its very visible discrete ejecta, VY CMa is the perfect star to explore the origin of these events in the evolved yellow and red supergiants. VY CMa's high mass loss rate and its unusual chemistry suggest that it is near the end of the red supergiant stage or possibly in a second short-lived red supergiant stage. Its HST/WFPC2 images are distinguished by prominent large-scale arcs and clumps of knots with minimum masses of 3 x 10^-3 Msun. They were ejected in separate events over the past 800 years in different directions by localized processes from different regions on the star. The physical mechanism that drives these high mass loss events is not understood, but the evidence increasingly suggests that surface activity and magnetic fields are important. The circumstellar ejecta is also filled with numerous small knots and filaments suggesting that this mass loss process has been more frequent. ALMA measurements of the polarization in the dust closest to the star reveals grains aligned by the local magnetic field via a process that must be occurring on relatively short time scales. This material contains dust from the most recent mass loss events. Our proposed observations of the small knots and filaments closest to the star are designed to probe VY CMa's innermost circumstellar ejecta, the frequency of the recent ejections, and set limits on the timescales for the mass loss process. ------------------------------------------------------------------------------------ Observations Description ------------------------ VY CMa is a very luminous red supergiant with a complex extended circumstellar ejecta. The purpose of these observations is to measure the Doppler velocities of several knots close to the star that are very likely from its more recent mass loss events. The knots are distributed around the star less than 0.5 arcsec to the east and west and in two groups or clumps about one arcsec to the south. Some of the knots are about 0.1 arcsec across while others are more 15076( 3) - 19-Jul-2017 13:48:00 - [ 2] diffuse. To cover the knots requires two different slit orientations and therefore two visits. ------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 3] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 V-VY-CMA STAR, CIRCUMSTELLAR RA=07H22M58.3288S, J2000 V = 7.95 +/- 0.5 MATTER, KNOT, M III-I DEC=-25D46'3.24" Reference Frame: ICRS Extended: NO Comments: This object was generated by the targetselector and retrieved from the SIMBAD database. ------------------------------------------------------------------------------------------------------------------------------------ 2 VYCMA-KNOTS- STAR, CIRCUMSTELLAR RA-OFF=-7.528e-5D, DEC-OFF=0.0", J2000 1.5e-13 ergs/cm^-2/sec^-1/A W1 MATTER, KNOT FROM 1 Extended: NO Comments: Two knots and diffuse ejecta 0.27 arcsec west of the star. Flux is for the brightest knot at 6560A, 50 times fainter than the star. Offset is given in degrees due to uncertainty whether or not offset in RA is corrected for cos decl. Offset in RA in sec of time is 0.02s, corrected for cos dec it is 0.018s ------------------------------------------------------------------------------------------------------------------------------------ 3 VYCMA-KNOTS- STAR, CIRCUMSTELLAR RA-OFF=-1.5222e-4D, J2000 4e-14 ergs/cm^-2/sec^-1/A W2 MATTER, KNOT DEC-OFF=0.0", FROM 1 Extended: NO Comments: A knot 0.55 arcsec west of the star, flux measured at 6560A. Offset is given in degrees due to uncertainty whether or not offset in RA is corrected for cos decl. Offset in RA in sec of time is 0.04s, corrected for cos dec it is 0.036s ------------------------------------------------------------------------------------------------------------------------------------ 4 VYCMA-KNOTS- STAR, CIRCUMSTELLAR RA-OFF=+1.3083e-4D, J2000 4e-15 ergs/cm^-2/sec^-1/A E1 MATTER, KNOT DEC-OFF=0.0", FROM 1 Extended: NO Comments: Diffuse ejecta and knot 0.47 arcsec east of the star, 1000 times fainter than star, flux measured at 6560A. Offset is given in degrees due to uncertainty whether or not offset in RA is corrected for cos decl. Offset in RA in sec of time is 0.035s, corrected for cos dec it is 0.0315s ------------------------------------------------------------------------------------------------------------------------------------ 5 VYCMA-KNOTS- STAR, CIRCUMSTELLAR RA-OFF=0.0S, DEC-OFF=-0.716", J2000 4e-14 ergs/cm^-2/sec^-1/A S1 MATTER, KNOT FROM 1 Extended: NO Comments: Knots in the S and SW clumps 0.7 arcsec south of the star. 100 - 300 times fainter than star at 6560A. ------------------------------------------------------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 4] TARGET LIST Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 6 VYCMA-KNOTS- STAR, CIRCUMSTELLAR RA-OFF=0.0S, DEC-OFF=-1.088", J2000 4e-14 ergs/cm^-2/sec^-1/A S2 MATTER, KNOT FROM 1 Extended: NO Comments: Knots in the S and SW clump 1 arcsec south of the star. 100 -300 times fainter than star at 6560A ------------------------------------------------------------------------------------------------------------------------------------ 7 VYCMA-KNOTS- STAR, CIRCUMSTELLAR RA-OFF=0.0S, DEC-OFF=-1.425", J2000 4e-14 ergs/cm^-2/sec^-1/A S3 MATTER, KNOT FROM 1 Extended: NO Comments: Knots in the S and SW clumps 1.4 arcsec south of the star. 100 - 300 times fainter than star at 6560A. ------------------------------------------------------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 5] Visit: 01 (EW Knots) Visit Requirements: ORIENT 61.35D TO 65.35 D; ORIENT 241.35D TO 245.35 D 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 V-VY-CMA STIS/CCD ACQ F25ND3 MIRROR 1 0.3 S (0.3 S) Comments: VYCMa is extremely bright especially in the red where the detector is sensitve. The ETC for the acquisition with the mirror and F25ND3 gave a S/N of 100 with a 0.3 sec exposure time. Time to saturation is 9.8s. We have observed eta Car numerous times with successful acquisitions using very short integration times like this. You can adjust the integration time if you think it necessary. ------------------------------------------------------------------------------------------------------------------------------------ 2 V-VY-CMA STIS/CCD ACQ/PEA 52X0.1 G750M 8561 1 0.5 S (0.5 K S) Comments: A precise peakup is required because we will be offsetting to nearby kots and filaments within 1 arsec of the star. The apparent position of the star is wavelength dependent. For that reason we are doing the peakup at one of the wavelengths where we will be observing, ~ 8500A. We chose this tilt because the spectrum is continuum with some absorption lines. The 7795 tilt is dominated by VERY strong emission of K I. The ETC for spectroscopy with the 52 x 0.1 slit and the 8561 tilt gives a S/N of 56 with a 0.5 sec integration time. Saturation is at 15 sec. The flux of VY CMa at ~8500A is 1.18e-11 erg/s/cm2/A based on its SED. You can adjust this time if necessary. ------------------------------------------------------------------------------------------------------------------------------------ 3 V-VY-CMA STIS/CCD ACCUM 52X0.1 G750M 8561 SIZEAXIS2=300, WAVECAL=NO, 1 2 S (2 S) GAIN=4 Comments: Very short exposure on central star VY CMa ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/CCD ACCUM 52X0.1 G750M 8561 1 DEF (0 S) Comments: wavelength calibration for 8561A ------------------------------------------------------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 6] 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 VYCMA-KNOTS STIS/CCD ACCUM 52X0.1 G750M 8561 CR-SPLIT=2, SIZEAXIS2=300, 1 80 S (80 -W1 WAVECAL=NO S) Comments: Two bright knots plus fainter ejecta within 0.3 arcsec west of the star. ------------------------------------------------------------------------------------------------------------------------------------ 6 VYCMA-KNOTS STIS/CCD ACCUM 52X0.1 G750M 8561 CR-SPLIT=2, SIZEAXIS2=300 1 100 S (100 -W2 S) Comments: Faint knot and ejecta 0.5 arcsec west of the star. ------------------------------------------------------------------------------------------------------------------------------------ 7 VYCMA-KNOTS STIS/CCD ACCUM 52X0.1 G750M 8561 CR-SPLIT=2, SIZEAXIS2=400 1 320 S (320 -E1 S) Comments: Faint knot and ejecta 0.5 arcsec west of the star.. ------------------------------------------------------------------------------------------------------------------------------------ 8 CCDFLAT STIS/CCD ACCUM 52X0.1 G750M 8561 2 DEF (0 S) Comments: CCDFLAT for 8561A ------------------------------------------------------------------------------------------------------------------------------------ 9 WAVE STIS/CCD ACCUM 52X0.1 G750M 7795 1 DEF (0 S) Comments: wavelength calibration for 7795A ------------------------------------------------------------------------------------------------------------------------------------ 10 VYCMA-KNOTS STIS/CCD ACCUM 52X0.1 G750M 7795 CR-SPLIT=2, SIZEAXIS2=400 1 320 S (320 -E1 S) Comments: Faint knot and ejecta 0.5 arcsec west of the star. ------------------------------------------------------------------------------------------------------------------------------------ 11 VYCMA-KNOTS STIS/CCD ACCUM 52X0.1 G750M 7795 CR-SPLIT=2, SIZEAXIS2=300 1 80 S (80 -W1 S) Comments: Two bright knots plus fainter ejecta within 0.3 arcsec west of the star. ------------------------------------------------------------------------------------------------------------------------------------ 12 VYCMA-KNOTS STIS/CCD ACCUM 52X0.1 G750M 7795 CR-SPLIT=2, SIZEAXIS2=300 1 100 S (100 -W2 S) Comments: Faint knot and ejecta 0.5 arcsec west of the star. ------------------------------------------------------------------------------------------------------------------------------------ 13 V-VY-CMA STIS/CCD ACCUM 52X0.1 G750M 7795 SIZEAXIS2=300, GAIN=4 1 1 S (1 S) Comments: Very short exposure on central star VY CMa at 7795A ------------------------------------------------------------------------------------------------------------------------------------ 14 CCDFLAT STIS/CCD ACCUM 52X0.1 G750M 7795 2 DEF (0 S) Comments: CCDFLAT for 7795A ------------------------------------------------------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 7] 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-VY-CMA 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-VY-CMA 2 STIS/CCD ACQ/PEA 52X0.1 G750M 8561 none none none none 1 N/A K V-VY-CMA 3 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 1 1 N/A V-VY-CMA 3 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 2 1 N/A WAVE 4 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none none 1 N/A VYCMA-KNOTS-W1 5 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 1 1 N/A VYCMA-KNOTS-W1 5 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 2 1 N/A VYCMA-KNOTS-W2 6 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 1 1 N/A VYCMA-KNOTS-W2 6 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 2 1 N/A VYCMA-KNOTS-E1 7 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 1 1 N/A VYCMA-KNOTS-E1 7 STIS/CCD ACCUM 52X0.1 G750M 8561 none none none 2 1 N/A CCDFLAT 8 STIS/CCD ACCUM 52X0.1 G750M 8561 none none 1 none 1 N/A CCDFLAT 8 STIS/CCD ACCUM 52X0.1 G750M 8561 none none 2 none 1 N/A WAVE 9 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none none 1 N/A VYCMA-KNOTS-E1 10 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 1 1 N/A VYCMA-KNOTS-E1 10 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 2 1 N/A VYCMA-KNOTS-W1 11 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 1 1 N/A VYCMA-KNOTS-W1 11 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 2 1 N/A VYCMA-KNOTS-W2 12 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 1 1 N/A VYCMA-KNOTS-W2 12 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 2 1 N/A V-VY-CMA 13 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 1 1 N/A V-VY-CMA 13 STIS/CCD ACCUM 52X0.1 G750M 7795 none none none 2 1 N/A CCDFLAT 14 STIS/CCD ACCUM 52X0.1 G750M 7795 none none 1 none 1 N/A CCDFLAT 14 STIS/CCD ACCUM 52X0.1 G750M 7795 none none 2 none 1 N/A 15076( 3) - 19-Jul-2017 13:48:00 - [ 8] Visit: 02 (S and SW Knots) Visit Requirements: ORIENT 168.35D TO 172.35 D; ORIENT 348.35D TO 352.35 D 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 V-VY-CMA STIS/CCD ACQ F25ND3 MIRROR 1 0.3 S (0.3 S) Comments: VYCMa is extremely bright especially in the red where the detector is sensitve. The ETC for the acquisition with the mirror and F25ND3 gave a S/N of 100 with a 0.3 sec exposure time. Time to saturation is 9.8s. We have observed eta Car numerous times with successful acquisitions using very short integration times like this. You can adjust the integration time if you think it necessary. ------------------------------------------------------------------------------------------------------------------------------------ 2 V-VY-CMA STIS/CCD ACQ/PEA 52X0.1 G750M 8561 1 0.5 S (0.5 K S) Comments: A precise peakup is required because we will be offsetting to nearby kots and filaments within 1 arsec of the star. The apparent position of the star is wavelength dependent. For that reason we are doing the peakup at one of the wavelengths where we will be observing, ~ 8500A. We chose this tilt because the spectrum is continuum with some absorption lines. The 7795 tilt is dominated by VERY strong emission of K I. The ETC for spectroscopy with the 52 x 0.1 slit and the 8561 tilt gives a S/N of 56 with a 0.5 sec integration time. Saturation is at 15 sec. The flux of VY CMa at ~8500A is 1.18e-11 erg/s/cm2/A based on its SED. You can adjust this time if necessary. ------------------------------------------------------------------------------------------------------------------------------------ 3 V-VY-CMA STIS/CCD ACCUM 52X0.2 G750M 8561 WAVECAL=NO, GAIN=4, 1 2 S (2 S) SIZEAXIS2=300 Comments: Very short exposure on central star VY CMa ------------------------------------------------------------------------------------------------------------------------------------ 4 WAVE STIS/CCD ACCUM 52X0.2 G750M 8561 1 DEF (0 S) Comments: wavelength calibration for 8561A ------------------------------------------------------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 9] 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 VYCMA-KNOTS STIS/CCD ACCUM 52X0.2 G750M 8561 CR-SPLIT=2, SIZEAXIS2=300 1 100 S -S1 see below (160 S) Comments: Several knots along slit 0.7 arcsec south of star. ------------------------------------------------------------------------------------------------------------------------------------ 6 VYCMA-KNOTS STIS/CCD ACCUM 52X0.2 G750M 8561 CR-SPLIT=2, SIZEAXIS2=300 1 160 S (160 -S2 S) Comments: Faint knots 1 arcsec south of the star. ------------------------------------------------------------------------------------------------------------------------------------ 7 VYCMA-KNOTS STIS/CCD ACCUM 52X0.2 G750M 8561 CR-SPLIT=2, SIZEAXIS2=300 1 200 S (200 -S3 S) Comments: Faint knots 1.4 arcsec south of the star. ------------------------------------------------------------------------------------------------------------------------------------ 8 CCDFLAT STIS/CCD ACCUM 52X0.2 G750M 8561 2 DEF (0 S) Comments: CCDFLAT for 8561A ------------------------------------------------------------------------------------------------------------------------------------ 9 WAVE STIS/CCD ACCUM 52X0.2 G750M 7795 1 DEF (0 S) Comments: wavelength calibration for 7795A ------------------------------------------------------------------------------------------------------------------------------------ 10 VYCMA-KNOTS STIS/CCD ACCUM 52X0.2 G750M 7795 CR-SPLIT=2, SIZEAXIS2=300 1 200 S (200 -S3 S) Comments: Faint knots 1.4 arcsec south of the star. ------------------------------------------------------------------------------------------------------------------------------------ 11 VYCMA-KNOTS STIS/CCD ACCUM 52X0.2 G750M 7795 CR-SPLIT=2, SIZEAXIS2=300 1 160 S (160 -S2 S) Comments: Faint knots 1 arcsec south of the star. ------------------------------------------------------------------------------------------------------------------------------------ 12 VYCMA-KNOTS STIS/CCD ACCUM 52X0.2 G750M 7795 CR-SPLIT=2, SIZEAXIS2=300 1 100 S -S1 see below (160 S) Comments: Several knots along slit 0.7 arcsec south of star. ------------------------------------------------------------------------------------------------------------------------------------ 13 V-VY-CMA STIS/CCD ACCUM 52X0.2 G750M 7795 SIZEAXIS2=300, GAIN=4 1 1 S (1 S) Comments: Very short exposure on central star VY CMa at 7795A ------------------------------------------------------------------------------------------------------------------------------------ 14 CCDFLAT STIS/CCD ACCUM 52X0.2 G750M 7795 2 DEF (0 S) Comments: CCDFLAT for 7795A ------------------------------------------------------------------------------------------------------------------------------------ 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 | ------------------------------------------------------------------------------------------------------------------------------------ 15076( 3) - 19-Jul-2017 13:48:00 - [ 10] 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-VY-CMA 1 STIS/CCD ACQ F25ND3 MIRROR none none none none 1 N/A V-VY-CMA 2 STIS/CCD ACQ/PEA 52X0.1 G750M 8561 none none none none 1 N/A K V-VY-CMA 3 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 1 1 N/A V-VY-CMA 3 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 2 1 N/A WAVE 4 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none none 1 N/A VYCMA-KNOTS-S1 5 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 1 1 80.0 S VYCMA-KNOTS-S1 5 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 2 1 80.0 S VYCMA-KNOTS-S2 6 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 1 1 N/A VYCMA-KNOTS-S2 6 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 2 1 N/A VYCMA-KNOTS-S3 7 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 1 1 N/A VYCMA-KNOTS-S3 7 STIS/CCD ACCUM 52X0.2 G750M 8561 none none none 2 1 N/A CCDFLAT 8 STIS/CCD ACCUM 52X0.2 G750M 8561 none none 1 none 1 N/A CCDFLAT 8 STIS/CCD ACCUM 52X0.2 G750M 8561 none none 2 none 1 N/A WAVE 9 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none none 1 N/A VYCMA-KNOTS-S3 10 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 1 1 N/A VYCMA-KNOTS-S3 10 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 2 1 N/A VYCMA-KNOTS-S2 11 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 1 1 N/A VYCMA-KNOTS-S2 11 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 2 1 N/A VYCMA-KNOTS-S1 12 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 1 1 80.0 S VYCMA-KNOTS-S1 12 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 2 1 80.0 S V-VY-CMA 13 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 1 1 N/A V-VY-CMA 13 STIS/CCD ACCUM 52X0.2 G750M 7795 none none none 2 1 N/A CCDFLAT 14 STIS/CCD ACCUM 52X0.2 G750M 7795 none none 1 none 1 N/A CCDFLAT 14 STIS/CCD ACCUM 52X0.2 G750M 7795 none none 2 none 1 N/A 15076( 3) - 19-Jul-2017 13:48:00 - [ 11] Summary Form for Proposal 15076 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Apertures 52X0.1, 52X0.2, F25ND3 ------------------------------------------------------------------------------------------------------------------------------------ Configurations STIS/CCD ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACCUM, ACQ, ACQ/PEAK ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters CR-SPLIT=2, GAIN=4, SIZEAXIS2=300, SIZEAXIS2=400, WAVECAL=NO ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements ORIENT 168.35D TO 172.35 D, ORIENT 241.35D TO 245.35 D, ORIENT 348.35D TO 352.35 D, ORIENT 61.35D TO 65.35 D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G750M, MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names CCDFLAT, V-VY-CMA, VYCMA-KNOTS-E1, VYCMA-KNOTS-S1, VYCMA-KNOTS-S2, VYCMA-KNOTS-S3, VYCMA-KNOTS-W1, VYCMA-KNOTS-W2, WAVE ------------------------------------------------------------------------------------------------------------------------------------