6884( 8) - 04/02/97 09:51 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6884 Version: 8 Check-in Date: 02-Apr-1997 09:47:57 1.Proposal Title: COMPANION TO W922 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle COOL STARS GTO/AST 6 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: OTTO G. FRANZ LOWELL OBSERVATORY CoI: G. Fritz Benedict University of Texas N ------------------------------------------------------------------------------------ 6. Abstract We will observe W922 4 times during Cycle 6. When added to the observations to be secured during Cycles 4 and 5, we will obtain a precise parallax, barycentric orbits, and accurate masses of this star and its faint, low-mass companion. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will observe W922 during Cycle 6 to determine its parallax and the orbit of the faint companion. VISITS ARE MORE IMPORTANT THAN REFERENCE STARS, SO FEEL FREE TO CHOP STARS OFF THE ENDS OF VISITS TO FIT INTO AN ORBIT. All visits are scheduled to occur during times of maximum parallax factors. Real Time Justification ----------------------- Calibration Justification ------------------------- Additional Comments ------------------- ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: PI_Address Ship Via: UPS Email: ------------------------------------------------------------------------------------ 6884( 8) - 04/02/97 09:51 - [ 2] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 W922 STAR RA=322.812083D +/- 0.00014D, J2000 V = 11.95+/-0.05 DEC= -9.790139D +/- 0.00014D Comments: B-V = 1.64 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 1953.70 0.079 -0.060 0.134 2 W922-1-REF CALIBRATION,ASTROMETRIC RA=322.86005D +/- 0.00014D, DEC= J2000 V = 13.7+/-0.2 -9.78972D +/- 0.00014D Comments: Star 314 on OGF list 3 W922-2-REF CALIBRATION,ASTROMETRIC RA=322.91559D +/- 0.00014D, DEC= J2000 V = 15.0+/-0.2 -9.75683D +/- 0.00014D Comments: Star 263 on OGF list 4 W922-3-REF CALIBRATION,ASTROMETRIC RA=322.77817D +/- 0.00014D, DEC= J2000 V = 13.5+/-0.2 -9.77644D +/- 0.00014D Comments: Star 293 on OGF list 5 W922-4-REF CALIBRATION,ASTROMETRIC RA=322.76130D +/- 0.00014D, DEC= J2000 V = 15.5+/-0.2 -9.80458D +/- 0.00014D Comments: Star 325 on OGF list 6 W922-5-REF CALIBRATION,ASTROMETRIC RA=322.75926D +/- 0.00014D, DEC= J2000 V = 15.3+/-0.2 -9.83196D +/- 0.00014D Comments: Star 350 on OGF list 6884( 8) - 04/02/97 09:51 - [ 3] Visit: 01 Visit Requirements: PCS MODE Fine ORIENTation 65D TO 85D BETWEEN 10-OCT-96 AND 30-OCT-96 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 W922 FGS POS 3 F583W 1 30 S POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-120 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W 1 50 S MAX DUR 50S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-3-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-4-REF FGS POS 3 F583W 1 70 S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W SCANS=14,STEP-SIZE=1 1 420 S ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W 1 50 S MAX DUR 50S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-3-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 120 W922-4-REF FGS POS 3 F583W 1 65 S MAX DUR 65S ------------------------------------------------------------------------------------------------------------------------------------ 6884( 8) - 04/02/97 09:51 - [ 4] Visit: 02 Visit Requirements: PCS MODE Fine ORIENTation 244D TO 248D BETWEEN 03-JUN-97 AND 24-JUN-97 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 W922 FGS POS 3 F583W 1 30 S POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-110 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W 1 50 S MAX DUR 50S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-4-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-5-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W SCANS=13,STEP-SIZE=1 1 390 S ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W 1 50 S MAX DUR 50S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-4-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 6884( 8) - 04/02/97 09:51 - [ 5] Visit: 03 Visit Requirements: PCS MODE Fine ORIENTation 242D TO 250D BETWEEN 6-MAY-97 AND 27-MAY-97 On Hold Comments: Additional Comments: Exposures ------------------------------------------------------------------------------------------------------------------------------------ Exposure| Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | Special Number | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 W922 FGS POS 3 F583W 1 30 S POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-110 NON-INT Comments: EXPOSURES 10-110 OF THIS VISIT AT SAME ORIENTATION; OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W 1 58 S MAX DUR 58S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-4-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-5-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W SCANS=14,STEP-SIZE=1 1 420 S ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W 1 30 S MAX DUR 30S Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W 1 58 S MAX DUR 58S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-4-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W 1 30 S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 6884( 8) - 04/02/97 09:51 - [ 6] Summary Form for Proposal 6884 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FGS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes POS TRANS ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCANS=14 STEP-SIZE=1 SCANS=13 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/AST ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category COOL STARS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE Fine ORIENTation 65D TO 85D BETWEEN 10-OCT-96 AND 30-OCT-96 POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-120 NON-INT MAX DUR 30S MAX DUR 50S MAX DUR 70S MAX DUR 65S PCS MODE Fine ORIENTation 244D TO 248D BETWEEN 03-JUN-97 AND 24-JUN-97 POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-110 NON-INT MAX DUR 60S PCS MODE Fine ORIENTation 242D TO 250D BETWEEN 6-MAY-97 AND 27-MAY-97 MAX DUR 58S ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F583W ------------------------------------------------------------------------------------------------------------------------------------ Target Names W922 W922-1-REF W922-2-REF W922-3-REF W922-4-REF W922-5-REF ------------------------------------------------------------------------------------------------------------------------------------