6882( 6) - 04/02/97 10:14 - [ 1] PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID: 6882 Version: 6 Check-in Date: 02-Apr-1997 10:09:50 1.Proposal Title: COMPANION TO GL623 ------------------------------------------------------------------------------------ 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 GL623 4 times during Cycle 6. When added to the observations 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 (possibly sub-stellar) companion. ------------------------------------------------------------------------------------ Observations Description ------------------------ We will observe GL623 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: ------------------------------------------------------------------------------------ 6882( 6) - 04/02/97 10:14 - [ 2] TARGET LIST a) Fixed Targets ------------------------------------------------------------------------------------------------------------------------------------ Tar| Target | Target | Target |Coord | Radial | Flux data No | Name | Description | Position |Eqnx | Vel. | ------------------------------------------------------------------------------------------------------------------------------------ 1 GL623 STAR RA= 246.0171667D +/- 0.00014D, J2000 V = 10.27+/-0.05 DEC= 48.3588056D +/- 0.00014D Comments: B-V = 1.48 Epoch of Position RA proper motion (seconds of time/yr) DEC Proper Motion (arcsec/yr) Annual Parallax (arcsec) 1955.20 0.116 -0.460 .10 2 GL623-1-REF CALIBRATION,ASTROMETRIC RA=245.92132D +/- 0.00014D, DEC= J2000 V = 13.7+/-0.2 48.33431D +/- 0.00014D Comments: Star 53 on OGF list 3 GL623-2-REF CALIBRATION,ASTROMETRIC RA=245.96787D +/- 0.00014D, J2000 V = 14.4+/-0.2 DEC=48.36818D +/- 0.00014D Comments: Star 224 on OGF list 4 GL623-4-REF CALIBRATION,ASTROMETRIC RA=246.11151D +/- 0.00014D, J2000 V = 12.4+/-0.2 DEC=48.36953D +/- 0.00014D Comments: Star 0 on OGF list 5 GL623-5-REF CALIBRATION,ASTROMETRIC RA=246.14610D +/- 0.00014D, J2000 V = 15.0+/-0.2 DEC=48.33139D +/- 0.00014D Comments: Star 96 on OGF list 6 GL623-6-REF CALIBRATION,ASTROMETRIC RA=245.89961D +/- 0.00014D, J2000 V = 14.7+/-0.2 DEC=48.39703D +/- 0.00014D Comments: Star 223 on OGF list 7 GL623-3-REF CALIBRATION,ASTROMETRIC RA=246.06216D +/- 0.00014D, J2000 V = 14.3+/-0.2 DEC=48.39038D +/- 0.00014D Comments: Star 145 on OGF list 6882( 6) - 04/02/97 10:14 - [ 3] Visit: 01 Visit Requirements: PCS MODE Fine ORIENTation 104D TO 114D BETWEEN 21-JUL-96 AND 31-JUL-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 GL623 FGS POS 3 F583W 1 15 S POS TARG 0.0, 0.0;MAX DUR 15S SEQ 10-110 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 20 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 40 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 50 GL623-5-REF FGS POS 3 F583W 1 55 S MAX DUR 55S ------------------------------------------------------------------------------------------------------------------------------------ 60 GL623 FGS TRANS 3 F583W SCANS=32,STEP-SIZE=1 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 70 GL623 FGS POS 3 F583W 1 15 S MAX DUR 15S ------------------------------------------------------------------------------------------------------------------------------------ 80 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 90 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 100 GL623-5-REF FGS POS 3 F583W 1 55 S MAX DUR 55S ------------------------------------------------------------------------------------------------------------------------------------ 110 GL623 FGS POS 3 F583W 1 15 S MAX DUR 15S ------------------------------------------------------------------------------------------------------------------------------------ 6882( 6) - 04/02/97 10:14 - [ 4] Visit: 02 Visit Requirements: PCS MODE Fine ORIENTation 70D TO 83D BETWEEN 10-SEP-96 AND 30-SEP-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 GL623 FGS POS 3 F583W 1 15 S POS TARG 0.0, 0.0;MAX DUR 15S SEQ 10-110 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 20 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 30 GL623-1-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 40 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 50 GL623-3-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 60 GL623 FGS TRANS 3 F583W SCANS=32,STEP-SIZE=1 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 70 GL623 FGS POS 3 F583W 1 15 S MAX DUR 15S ------------------------------------------------------------------------------------------------------------------------------------ 80 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 85 GL623-1-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 90 GL623-3-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 100 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 110 GL623 FGS POS 3 F583W 1 13 S MAX DUR 13S ------------------------------------------------------------------------------------------------------------------------------------ 6882( 6) - 04/02/97 10:14 - [ 5] Visit: 03 Visit Requirements: PCS MODE Fine ORIENTation 104D TO 114D BETWEEN 21-JUL-97 AND 31-JUL-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 GL623 FGS POS 3 F583W 1 20 S POS TARG 0.0, 0.0;MAX DUR 20S SEQ 10-110 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 30 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 40 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 50 GL623-5-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 60 GL623 FGS TRANS 3 F583W SCANS=32,STEP-SIZE=1 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 70 GL623 FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 80 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 90 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 100 GL623-5-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 110 GL623 FGS POS 3 F583W 1 15 S MAX DUR 15S ------------------------------------------------------------------------------------------------------------------------------------ 6882( 6) - 04/02/97 10:14 - [ 6] Visit: 04 Visit Requirements: PCS MODE Fine ORIENTation 260D TO 264D BETWEEN 5-MAR-97 AND 16-MAR-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 GL623 FGS POS 3 F583W 1 20 S POS TARG 0.0, 0.0;MAX DUR 20S SEQ 10-110 NON-INT Comments: OBSERVATION MAY BE TRUNCATED TO SATISFY MONITORING SPACING REQUIREMENTS ------------------------------------------------------------------------------------------------------------------------------------ 20 GL623-1-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 30 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 40 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 50 GL623-5-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 60 GL623 FGS TRANS 3 F583W SCANS=32,STEP-SIZE=1 1 800 S ------------------------------------------------------------------------------------------------------------------------------------ 70 GL623 FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 80 GL623-2-REF FGS POS 3 F583W 1 40 S MAX DUR 40S ------------------------------------------------------------------------------------------------------------------------------------ 90 GL623-4-REF FGS POS 3 F583W 1 20 S MAX DUR 20S ------------------------------------------------------------------------------------------------------------------------------------ 100 GL623-5-REF FGS POS 3 F583W 1 60 S MAX DUR 60S ------------------------------------------------------------------------------------------------------------------------------------ 110 GL623 FGS POS 3 F583W 1 15 S MAX DUR 15S ------------------------------------------------------------------------------------------------------------------------------------ 6882( 6) - 04/02/97 10:14 - [ 7] Summary Form for Proposal 6882 Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FGS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes POS TRANS ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SCANS=32 STEP-SIZE=1 ------------------------------------------------------------------------------------------------------------------------------------ Proposal Category GTO/AST ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category COOL STARS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements PCS MODE Fine ORIENTation 104D TO 114D BETWEEN 21-JUL-96 AND 31-JUL-96 POS TARG 0.0, 0.0;MAX DUR 15S SEQ 10-110 NON-INT MAX DUR 40S MAX DUR 20S MAX DUR 55S MAX DUR 15S PCS MODE Fine ORIENTation 70D TO 83D BETWEEN 10-SEP-96 AND 30-SEP-96 MAX DUR 13S PCS MODE Fine ORIENTation 104D TO 114D BETWEEN 21-JUL-97 AND 31-JUL-97 POS TARG 0.0, 0.0;MAX DUR 20S SEQ 10-110 NON-INT MAX DUR 60S PCS MODE Fine ORIENTation 260D TO 264D BETWEEN 5-MAR-97 AND 16-MAR-97 ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F583W ------------------------------------------------------------------------------------------------------------------------------------ Target Names GL623 GL623-2-REF GL623-4-REF GL623-5-REF GL623-1-REF GL623-3-REF ------------------------------------------------------------------------------------------------------------------------------------