Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4760c Report Date: 09-May-96:19:53 Version: ********** Check-in Date: ********** 1.Proposal Title: AURORAL IMAGING OF JUPITER WITH THE FOC CYCLE 2 - PART 2 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID SOLAR SYSTEM GTO/OS 4113 Sub Category GIANT PLANETS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone John J. Caldwell YORK UNIVERSITY CANADA (416) 665-5449 PROFESSOR ------------------------------------------------------------------------------------ 7. Abstract Observe Jupiter with the FOC for H2 auroral emissions at 1600A, using two filters in series to reduce the red leak. Image the south polar aurora on seven consecutive orbits, to cover one Jupiter rotation, near April 15, 1993. Starting time with respect to UT or to Jupiter's CML will be chosen to insure overlapping coverage near System III longitude 0 degrees at the beginning and end of the sequence. Continuum images will also be taken for limb-fitting. ------------------------------------------------------------------------------------ 8. Scientific Key Words: JUPITER, AURORA, H2 ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 2.75 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4760c PI: John J. Caldwell Proposal Title: AURORAL IMAGING OF JUPITER WITH THE FOC CYCLE 2 - PART 2 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ John J. Caldwell YORK UNIVERSITY CANADA ------------------------------------------------------------------------------------ 3. Description of proposed observations. S/N estimate based on previous HST images, with FOC pixel binning to 2x2 (arcsec)^2 assumed. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. The Jupiter auroral observations should be executed near April 15, 1993, if possible. It is understood that the period of April 15, 1993, corresponds to an SAA avoidance period for the HST, and it is chosen to facilitate the consecutive orbit requirement. There will be a major attempt to have ground-based observers coordinate their observations with the HST observations in April, 1993, so if this requested time is not possible, for whatever reason, please inform the PI of the change as soon as possible (416-665-5449). ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Images will be calibrated and binned as necessary to produce optimum information. Exposures are limited not only by photons but also by planetary rotation, so that standard S/N estimates are not meaningful. Previous experience with HST/FOC images of the Jovian aurora shows that the chosen exposure times will produce excellent images. ------------------------------------------------------------------------------------ 13. Auroral imaging of the polar regions of Jupiter will be performed with the FOC, using filters F175W and F152M in series, to reduce red leak and provide reasonable sensitivity to H2 emission at 1600 A. Continuum images at 2200A will also be obtained. Exposure times and the total number of exposures, being constrained by HST eficiency and orbital considerations and by Jupiter's rotation, cannot change. If the auroral images can be obtained without breaking guide-star lock, a second set of continuum images at the end of the auroral sequence may be omitted. Program updated 1/26/92 to include FOC bright object observing procedure. Dark exposures added, preceding each new filter combination. These should run during Earth occultation, but immediately before the associated science exposures. The visibility period following a DARK should start with a full guide star acq., to undo the effects of preceding SIPS. A pointed uplink should follow the guide star acq. If telemetry indicates the proper filters are in place, a precalculated SIP (based on the actual S/C roll angle) will be made and observations will continue. Contact Alex Storrs (SPB, x4903) for details. ------------------------------------------------------------------------------------ 11. Address Information Name: JOHN J. CALDWELL Category: PI Institution: YORK UNIVERSITY Address: PHYSICS DEPT 4700 KEELE ST. City: NORTH YORK State: ON Zip Code: M3J 1P3 Country: CANADA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4760c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 | TARGET NAME: JUPITER-OFF ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER | TYPE = POS_ANGLE,RAD = 65.0, | ANG = 130, REF = NORTH | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | CML OF JUPITER FROM EARTH BETWEEN | 0 60, | SEP OF IO JUPITER-OFF FROM EARTH GT | 30",SEP OF EUROPA JUPITER-OFF FROM | EARTH GT 30",SEP OF GANYMEDE | JUPITER-OFF FROM EARTH GT 30",SEP OF | CALLISTO JUPITER-OFF FROM EARTH GT 30" | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | | | TRK= 0.1. WINDOW CML IS SYSTEM III. | | PUT JUPITER'S SOUTH LIMB INSIDE FOC | | FOV, INCLUDING MARGIN FOR GS ERROR. | | CENTER FOC/FOV ON CENTRAL MERIDIAN. | | INITIAL POINTING IS 65" TO JOVIAN | | SOUTH-EAST OF FINAL TARGET. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4760c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 | TARGET NAME: JUPITER-OFF-S ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER | TYPE = POS_ANGLE,RAD = 80.0, | ANG = 150, REF = NORTH | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | CML OF JUPITER FROM EARTH BETWEEN | 0 60, | SEP OF IO JUPITER-OFF FROM EARTH GT | 30",SEP OF EUROPA JUPITER-OFF FROM | EARTH GT 30",SEP OF GANYMEDE | JUPITER-OFF FROM EARTH GT 30",SEP OF | CALLISTO JUPITER-OFF FROM EARTH GT 30" | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | | | TRK= 0.1. WINDOW CML IS SYSTEM III. | | PUT JUPITER'S SOUTH LIMB INSIDE FOC | | FOV, INCLUDING MARGIN FOR GS ERROR. | | CENTER FOC/FOV ON CENTRAL MERIDIAN. | | INITIAL POINTING IS 65" TO JOVIAN | | SOUTH-EAST OF FINAL TARGET. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 10 | TARGET NAME: JUPITER-NORTHPOLE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER | TYPE = POS_ANGLE,RAD = 16.0, | ANG = 25,REF = NORTH | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=-2 | TRK= 0.1. PUT JUPITER'S NORTH LIMB 2 |F(1600)=2.5E-13 | INSIDE FOC FOV, INCLUDING MARGIN FOR | | G.S. ERROR. CENTER FOC/FOV ON | | CENTRAL MERIDIAN. SLIGHT UPDATE TO | | LEV2 PARAMETERS WHEN EXECUTION DATE | | IS DETERMINED. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4760c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 30 | TARGET NAME: JUPITER-SOUTHPOLE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER | TYPE = POS_ANGLE,RAD = 16, | ANG = 205,REF = NORTH | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | CML OF JUPITER FROM EARTH BETWEEN 0 | 100 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=-2 | TRK= 0.1. CML WINDOW IS IN SYS III. 2 |F(1600)=2.5E-13 | PUT JUPITER'S SOUTH LIMB INSIDE FOC | | FOV, INCLUDING MARGIN FOR G.S. | | ERROR. CENTER FOC/FOV ON CENTRAL | | MERIDIAN. SLIGHT UPDATE TO LEV2 | | PARAMETERS WHEN EXECUTION DATE IS | | DETERMINED. | ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4760c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 0.5 DARK FOC/96 IMAGE 512X102 F220W, PIXEL=50X25 1 17S 1 2 1 SEQ 0.5-1.5 NO GAP 4 F231M, SEQ 0.5-1.5 NON- F2ND INT CYCLE 2 / 0.5-3.5 PCS MODE C / 1-3.5 Comments: TEST EXPOSURE. SCHEDULE AT END OF OCCULTATION PRECEDING LINE 1. PERFORM SIP IF FILTERS IN PLACE. ------------------------------------------------------------------------------------------------------------------------------------ 1 JUPITER-OFF FOC/96 IMAGE 512X102 F220W, PIXEL=50X25 1 9M 87 2 1 SEQ 1-1.5 NON-INT 4 F231M, REQ UPLINK F2ND ORIENT -15D +/- 5D FROM NOMINAL / 1-3.5 Comments: PLACE JUPITER'S NORTH LIMB INSIDE FOC FOV, WITH MARGIN FOR GS ERROR. CENTER FOV ON CENTRAL MERIDIAN. THIS IS A CONTINUUM MEASUREMENT. SIP IS 44.9" V2, 54.8" IN V3 AT NOMINAL ROLL - 15D. NO CML CONSTR. ------------------------------------------------------------------------------------------------------------------------------------ 1.5 JUPITER-OFF FOC/96 IMAGE 512X102 F220W, PIXEL=50X25 1 9M 87 2 1 -S 4 F231M, F2ND Comments: CONTINUUM, SOUTH POLE. SIP IS - 31.35" V2, +6.5" V3 AT NOMINAL ROLL - 15D. NO CML CONSTR. ------------------------------------------------------------------------------------------------------------------------------------ 1.75 DEFINE JUPITER-OFF FOC/96 IMAGE 512X102 F175W, PIXEL=50X25 2 10.5M 15 2 1 AT 15-APR-1993 +/- SEQUENC -S 4 F152M 15D E1 ------------------------------------------------------------------------------------------------------------------------------------ 1.95 DARK FOC/96 IMAGE 512X102 F175W, PIXEL=50X25 1 17S 1 2 1 SEQ 1.95-2.6 NO 4 F152M GAP SEQ 1.95-2.0 NON- INT Comments: FILTER TEST EXPOSURE PUT AT END OF OCCULTATION PRECEDING LINE 2. PERFORM SIP ONLY IF FILTERS ARE IN PLACE. AFTER FULL GSACQ, SIP IS 13.5" V2, 61.3" V3 AT NOMINAL ROLL -15D. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4760c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 2 JUPITER-OFF FOC/96 IMAGE 512X102 F175W, PIXEL=50X25 2 10.5M 14 2 1 REQ UPLINK -S 4 F152M Comments: SEQUENCE MUST BE ON 7 CONSECUTIVE ORBITS. IF POSSIBLE, USE SAME GS FOR LINES 1.0 THROUGH 3.5. LINE 2 IS THE ONLY EXP WHERE CML IS CONSTRAINED. OTHER EXPOSURES FOLLOW NATURALLY AS JUP ROTATES. ------------------------------------------------------------------------------------------------------------------------------------ 2.1 USE NON-INT SEQUENC E1 Comments: SEQUENCE MUST BE DONE ON 7 CONSECUTIVE ORBITS. IF POSSIBLE, USE SAME GUIDE STARS FOR LINES 1.0 THROUGH 2.6. ------------------------------------------------------------------------------------------------------------------------------------ 2.2 USE NON-INT SEQUENC E1 ------------------------------------------------------------------------------------------------------------------------------------ 2.3 USE NON-INT SEQUENC E1 ------------------------------------------------------------------------------------------------------------------------------------ 2.4 JUPITER-OFF FOC/96 IMAGE 512X102 F175W, PIXEL=50X25 2 10.5M 14 2 1 REQ UPLINK -S 4 F152M NON-INT ------------------------------------------------------------------------------------------------------------------------------------ 2.5 USE NON-INT SEQUENC E1 ------------------------------------------------------------------------------------------------------------------------------------ 2.6 USE NON-INT SEQUENC E1 ------------------------------------------------------------------------------------------------------------------------------------ 2.9 DARK FOC/96 IMAGE 512X102 F220W, PIXEL=50X25 1 17S 15 2 1 COND IF GS LOCK 4 F231M, BROKEN IN 1-2.6 F2ND SEQ 2.9-3.5 NO GAP SEQ 2.9-3.5 NON- INT Comments: TEST EXPOSURE FOR CONTINUUM FILTERS PUT AT END OF OCCULTATION PRECEDING LINE 3. PERFORM SIP ONLY IF FILTERS ARE IN PLACE. EXECUTE LINES 2.9-3.5 ONLY IF LINES 1-2.7 CANT BE DONE ON ONE GUIDE STAR PAIR. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4760c [ 8] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 3 JUPITER-OFF FOC/96 IMAGE 512X102 F220W, PIXEL=50X25 1 9M 87 2 1 SEQ 3-3.5 NON-INT 4 F231M, COND IF GS LOCK F2ND BROKEN IN 1-2.6 REQ UPLINK Comments: PLACE JUPITER'S NORTH LIMB INSIDE FOC FOV, WITH MARGIN FOR GS ERROR. CENTER FOV ON CENTRAL MERIDIAN. THIS IS A CONTINUUM MEASUREMENT. SIP IS 44.9" V2, 54.8" V3 AT NOMINAL ROLL -15D, AFTER FULL GSACQ. ------------------------------------------------------------------------------------------------------------------------------------ 3.5 JUPITER-OFF FOC/96 IMAGE 512X102 F220W, PIXEL=50X25 1 9M 87 2 1 COND IF GS LOCK -S 4 F231M, BROKEN IN 1-2.6 F2ND Comments: SAME COMMENTS AS FOR 3, EXCEPT 3.5 IS FOR THE SOUTH POLE. SIP IS -31.35" V2, 6.5" V3 AT NOMINAL ROLL -15D. IF ONLY ONE PAIR OF GUIDE STARS USED FOR 1- 2.6, DO NOT EXECUTE 3-3.5 ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4760c [ 9] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations FOC/96 ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters PIXEL=50X25 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GTO/OS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 2.75 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category SOLAR SYSTEM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category GIANT PLANETS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SEQ 0.5-1.5 NO GAP; SEQ 0.5-1.5 NON-INT; CYCLE 2 / 0.5-3.5; PCS MODE C / 1-3.5; SEQ 1-1.5 NON-INT; REQ UPLINK; ORIENT -15D +/- 5D FROM NOMINAL AT 15-APR-1993 +/- 15D SEQ 1.95-2.6 NO GAP; SEQ 1.95-2.0 NON-INT; COND IF GS LOCK BROKEN IN 1-2.6; SEQ 2.9-3.5 NO GAP; SEQ 2.9-3.5 NON-INT; SEQ 3-3.5 NON-INT; REQ UPLINK ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F220W,F231M,F2ND F175W,F152M ------------------------------------------------------------------------------------------------------------------------------------ Target Names JUPITER-OFF JUPITER-OFF-S JUPITER-NORTHPOLE JUPITER-SOUTHPOLE ------------------------------------------------------------------------------------------------------------------------------------