6241( 8) - 11/22/95 18:51 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6241 Version: 8 Check-in Date: ********** 1.Proposal Title: COMPANION TO W922 (GL831) ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Cycle COOL STARS GTO/AST 5 ------------------------------------------------------------------------------------ 5. Investigators Contact? PI: William Jefferys University of Texas CoI: Otto G. Franz Lowell Observatory N ------------------------------------------------------------------------------------ 6. Abstract We will observe W922 4 times during Cycle 5. When added to the 2 observations to be secured during Cycle 6, 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 5 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 ------------------- TWEAK POSITIONS ONCE GSSS PRODUCTS SHOW UP Note: ------------------------------------------------------------------------------------ Data Distribution Media: 8MM Blocking Factor: 10 Ship To: O.G. Franz*Lowell Observatory*1400 W. Mars Hill Rd.*Flagstaff, AZ 86001 Ship Via: UPS Email: ogf@lowell.edu , ------------------------------------------------------------------------------------ 6241( 8) - 11/22/95 18:51 - [ 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=21H 31M 2.15S +/- 0.01S, DEC= J2000 V = 15.3 +/- 0.2 , -9D 49' 52.8" +/- 0.01" Comments: Star 350 on OGF list 6241( 8) - 11/22/95 18:51 - [ 3] Visit: 01 Visit Requirements: BETWEEN 10-OCT-1995:00:00:00 AND 30-OCT-1995:00:00:00; ORIENT 65D TO 85D 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 DATA-RATE=32 1 30S POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-120 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS; FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-3-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W ACQ- 1 200S MODE=SEARCH, SCANS=10, STEP- SIZE=1, DATA- RATE=32 Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-3-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 120 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 6241( 8) - 11/22/95 18:51 - [ 4] Visit: 02 Visit Requirements: BETWEEN 3-NOV-1995:00:00:00 AND 26-NOV-1995:00:00:00; ORIENT 65D TO 85D 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 DATA-RATE=32 1 30S POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-120 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS; FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-3-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W ACQ- 1 200S MODE=SEARCH, SCANS=10, STEP- SIZE=1, DATA- RATE=32 Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-3-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 120 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 6241( 8) - 11/22/95 18:51 - [ 5] Visit: 03 Visit Requirements: BETWEEN 18-APR-1996:00:00:00 AND 2-MAY-1996:23:59:59; ORIENT 244D TO 248D 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 DATA-RATE=32 1 30S 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; FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-5-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W ACQ- 1 160S MODE=SEARCH, SCANS=8, STEP- SIZE=1, DATA- RATE=32 Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 6241( 8) - 11/22/95 18:51 - [ 6] Visit: 04 Visit Requirements: BETWEEN 7-JUN-1996:00:00:00 AND 25-JUN-1996:23:59:59; ORIENT 244D TO 248D 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 DATA-RATE=32 1 30S 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; FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 20 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 30 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 40 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 50 W922-5-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 60 W922 FGS TRANS 3 F583W ACQ- 1 160S MODE=SEARCH, SCANS=8, STEP- SIZE=1, DATA- RATE=32 Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 70 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S Comments: FINE LOCK GUIDING ------------------------------------------------------------------------------------------------------------------------------------ 80 W922-1-REF FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 90 W922-2-REF FGS POS 3 F583W DATA-RATE=32 1 60S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 100 W922-4-REF FGS POS 3 F583W DATA-RATE=32 1 70S MAX DUR 70S ------------------------------------------------------------------------------------------------------------------------------------ 110 W922 FGS POS 3 F583W DATA-RATE=32 1 30S MAX DUR 30S ------------------------------------------------------------------------------------------------------------------------------------ 6241( 8) - 11/22/95 18:51 - [ 7] Summary Form for Proposal 6241 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FGS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes POS TRANS ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters DATA-RATE=32 STEP-SIZE=1 SCANS=10 SCANS=8 ACQ-MODE=SEARCH ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/AST ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category COOL STARS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements BETWEEN 10-OCT-1995 00 00 00 AND 30-OCT-1995 00 00 00; ORIENT 65D TO 85D POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-120 NON-INT MAX DUR 30S MAX DUR 60S MAX DUR 70S BETWEEN 3-NOV-1995 00 00 00 AND 26-NOV-1995 00 00 00; ORIENT 65D TO 85D BETWEEN 18-APR-1996 00 00 00 AND 2-MAY-1996 23 59 59; ORIENT 244D TO 248D POS TARG 0.0, 0.0;MAX DUR 30S SEQ 10-110 NON-INT BETWEEN 7-JUN-1996 00 00 00 AND 25-JUN-1996 23 59 59; ORIENT 244D TO 248D ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F583W ------------------------------------------------------------------------------------------------------------------------------------ Target Names W922 W922-1-REF W922-2-REF W922-3-REF W922-4-REF W922-5-REF ------------------------------------------------------------------------------------------------------------------------------------