Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 1534c Report Date: 09-May-96:16:49 Version: ********** Check-in Date: ********** 1.Proposal Title: WF/PC ASSISTED PLANETARY TARGET ACQUISITION TEST NO. HRS-20 ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID SV/HRS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dennis C. Ebbets BALL AEROSPACE SYSTEMS GROUP USA (303) 939-5964 CALIBRATION ASSOC. ------------------------------------------------------------------------------------ 7. Abstract This proposal was modified in April, 1989 during the SV Scrub exercise, to comply with expected HST/OSS moving target capabilities. The proposal has three parts: 1. A planetary satellite, Europa, is acquired into the GHRS 2.0 aperture using a WFC assisted proceudre. 2. A feature in the atmosphere of Jupiter is acquired into the GHRS 2.0 aperture using a WFC assisted procedure. 3. An enhanced GHRS flight software Target Acquisition X balance algorithm is tested. Revised 11/3/89 by PStanley to change target on exposure logsheet from Jupiter and its satellites and feature to Saturn. Jupiter is not available during July 1990 for GST8a run. Revised 2/6/90 by PStanley to change target back to Jupiter for SV. ------------------------------------------------------------------------------------ 8. Scientific Key Words: HRS CALIBRATION SCIENCE VERIFICATION ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 2.00 par: 0 10. Num targs pri: 1 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HRS WF/PC ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 1534c PI: Dennis C. Ebbets Proposal Title: WF/PC ASSISTED PLANETARY TARGET ACQUISITION TEST NO. HRS-20 ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Larry Trafton UNIV. OF TEXAS USA J. C. Brandt LASP/UNIV. OF COLORADO USA K. G. Carpenter CASA/UNIV. OF COLORADO USA P.I. Dennis C. Ebbets BALL AEROSPACE SYSTEMS GROUP USA Hal Weaver STSCI USA ------------------------------------------------------------------------------------ 2. Scientific Justification. PURPOSE verify the following target acquisition capabilites: The proposal has three parts: 1. A planetary satellite, Europa, is acquired into the GHRS 2.0 aperture using a WFC assisted proceudre. 2. A feature in the atmosphere of Jupiter is acquired into the GHRS 2.0 aperture using a WFC assisted procedure. 3. An enhanced GHRS flight software Target Acquisition X balance algorithm is tested. ------------------------------------------------------------------------------------ 3. Description of proposed observations. Part 1 EL lines 3-5 WFC image of Jupiter system. Use OSS ellipse fitting s/w to center of planet. Calculate maneuver to translate Europa to GHRS 2.0 aperture. Perform GHRS on-board acquisition to improve centering. Take a short spectrum. Part 2 EL lines 8-12 WFC images in "V" and "UV" light. Identify atmospheric feature in OSS, calculate and execute maneuver to translate to GHRS 2.0 aperture. Feature may be better visible in difference or ratio of images than in either image separately. Part 3 EL lines 13-19 On-board GHRS acquisition of Io using enhanced X balance software. Io selected because it may have a non-uniform UV brightness distribution, and will be a good test of the new algorithm. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Real time obs request: The primary purpose is to verify Mode I acquisition capability, which is by definition real-time. SV Prerequisites: HRS-07 WF/PC Assisted Target Acquisition (Proposal #1400) HRS-03 Camera Mode Sensitivity (Proposal #1349) SV Minimum Plan: EL lines 3-5, 8-12 SV Delta Plan: EL lines 13 -19 Guiding tolerance: track motion of Jupiter to 0.25 arc seconds This proposal is being submitted for the first time in November 1985. It was not submitted with the June 1985 delivery because of our understanding that there would be an Observatory Level Test which would verify essentially the same requirements. During reviews of the OV-SV program over the past several months it became clear that the OLT did not satisfy all of the HRS concerns. We are therefore submitting this test as an HRS SV observation, to be run in addition to the "Acquisition and Tracking of Satellites" test submitted by John Caldwell. This test is similar enough to Caldwell's Acquisition and Tracking of Satellites test that the two may be scheduled together. This is not a requirement of either test, but may make more efficient use of HST observing time. Exposure logsheets were revised in September 1987 to include the offset from one satellite to another test. Test revised April 1989 during SV Scrub, and after discussions with Hal Weaver concerning likely OSS capabilities. Page 3 ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data reduction plans: The HRS data will consist of a focus diode field map image of the Large Science Aperture. Analysis will be simply displaying the image and verifying that the target is well centered. If the target is not well centered the test cannot be considered a success, and the reason for the error must be determined. This may require repeating the observation after correction of the fault. ------------------------------------------------------------------------------------ 11. Address Information Name: DENNIS C. EBBETS Category: PI Institution: BALL AEROSPACE SYSTEMS GROUP Address: P.O. BOX 1062 FT-3 City: BOULDER State: CO Zip Code: 80306 Country: USA Telephone: (303) 939-5964 Telex (or e-mail): ------------------------------------------------------------------------------------ Name: BLAIR SAVAGE Category: Institution: UNIVERSITY OF WISCONSIN Address: DEPARTMENT OF ASTRONOMY 475 N. CHARTER ST. City: MADISON State: WI Zip Code: 53706 Country: USA Telephone: (608) 262-2395 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 1534c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 | TARGET NAME: JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=JUPITER, ACQ=0.25 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=-2.5 | 2 |B-V=+0.6 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 | TARGET NAME: EUROPA ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE EUROPA ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=JUPITER,ACQ=0.25 | STD=EUROPA | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=5.3 | 2 |B-V=+0.87 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 | TARGET NAME: GANYMEDE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE GANYMEDE ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=JUPITER,ACQ=0.25 | STD=GANYMEDE | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=4.6 | 2 |B-V=+0.83 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 1534c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 4 | TARGET NAME: CALLISTO ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE CALLISTO ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=JUPITER,ACQ=0.25 | STD=CALLISTO | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=5.7 | 2 |B-V=+0.86 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 5 | TARGET NAME: IO ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE IO ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=JUPITER,ACQ=0.25 | STD=IO | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=5.0 | 2 |B-V=+1.17 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 6 | TARGET NAME: SATURN ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET SATURN ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=SATURN,ACQ=0.25 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=0.7 | 2 |B-V=+0.9 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 1534c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 7 | TARGET NAME: TITAN ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE TITAN ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=SATURN,ACQ=0.25 | STD=TITAN | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=8.3 | 2 |B-V=+1.28 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 8 | TARGET NAME: MIMAS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE MIMAS ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=SATURN,ACQ=0.25 | STD=MIMAS | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=12.9 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 9 | TARGET NAME: MARS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: PLANET MARS ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=MARS,ACQ=0.25 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=-1.98 | 2 |B-V=+1.41 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 1534c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 10 | TARGET NAME: DEIMOS ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE DEIMOS ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=MARS,ACQ=0.25 | STD=DEIMOS | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V=12.4 | 2 |B-V=+0.65 | | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 11 | TARGET NAME: JUPITER-FEATURE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=JUPITER,ACQ=0.25 | TYPE=CARTO, | LONG=180, | LAT=+60, | RAD=67900 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V = -2.5 | FEATURE ON JUPITER TO BE SELECTED IN 2 |B-V = +0.6 | RT IN LINES 9-12. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 1534c [ 8] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 12 | TARGET NAME: SATURN-FEATURE ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE SATURN ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD=SATURN,ACQ=0.25 | TYPE=CARTO, | LONG=180, | LAT=+60, | RAD=57000 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |V = -2.5 | FEATURE ON SATURN TO BE SELECTED IN 2 |B-V = +0.6 | RT IN LINES 9-12. | ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1534c [ 9] ------------------------------------------------------------------------------------------------------------------------------------ 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 WFC IMAGE W1 F569W 1 0.11S 1 1 INT ACQ FOR 4 ------------------------------------------------------------------------------------------------------------------------------------ 4 EUROPA HRS ACQ 2.0 MIRROR-N2 MAP=END-POINT 1 53S 1 1 SEQ 3-5 SEARCH-SIZE=1 ONBOARD ACQ FOR 5 LOCATE=NO Comments: STEP-TIME=0.2 ------------------------------------------------------------------------------------------------------------------------------------ 5 EUROPA HRS ACCUM 2.0 G270M 2205 STEP-PATT=5 1 5M 1 1 COMB=FOUR ------------------------------------------------------------------------------------------------------------------------------------ 8 JUPITER WFC IMAGE W1 F569W 1 0.11S 1 1 SEQ 8-12 INT ACQ FOR 11,12 ------------------------------------------------------------------------------------------------------------------------------------ 9 JUPITER ^ ^ ^ F284W 1 10S 1 1 RT ANALYSIS FOR 11 ------------------------------------------------------------------------------------------------------------------------------------ 11 JUPITER- HRS IMAGE 2.0 MIRROR-N2 1 484S 1 1 FEATURE Comments: LINES 8-12 DEFINE A WFC- ASSISTED ACQUISITION OF AN ATMOSPHERIC FEATURE. SELECT A FEATURE IN THE IMAGES OF 8&9. PERFORM ZERO-POINT. ------------------------------------------------------------------------------------------------------------------------------------ 12 JUPITER- ^ ACCUM ^ G270M 2205 STEP-PATT=5 1 5M 1 1 FEATURE COMB=FOUR Comments: OFFSET TO PLACE THE SELECTED FEATURE ON THE HRS APERTURE. MAKE A MAP AND A BRIEF SPECTRUM. ------------------------------------------------------------------------------------------------------------------------------------ 13 IO HRS ACQ 2.0 MIRROR-N2 MAP=END-POINT 1 57.8S 1 1 SEQ 13-14 NO GAP SEARCH-SIZE=5 ONBOARD ACQ FOR 14 COND IF SV DELTA PLAN Comments: STEP-TIME=0.2. ------------------------------------------------------------------------------------------------------------------------------------ 14 ^ ^ IMAGE ^ ^ 1 96.8S 1 1 COND IF SV DELTA PLAN Comments: USE ONE DIODE X BALANCE FOR 13. ------------------------------------------------------------------------------------------------------------------------------------ 15 IO HRS ACQ 2.0 MIRROR-N2 MAP=END-POINT 1 54.6S 1 1 ONBOARD ACQ FOR 16 SEARCH-SIZE=3 SEQ 15-16 NO GAP COND IF SV DELTA PLAN Comments: STEP-TIME=0.2. ------------------------------------------------------------------------------------------------------------------------------------ 16 ^ ^ IMAGE ^ ^ 1 96.8S 1 1 COND IF SV DELTA PLAN Comments: USE TWO DIODE SUM X BALANCE FOR 15 ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 1534c [ 10] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 17 IO HRS ACQ 2.0 MIRROR-N2 MAP=END-POINT 1 54.6S 1 1 ONBOARD ACQ FOR 18 SEARCH-SIZE=3 SEQ 17-19 NO GAP COND IF SV DELTA PLAN Comments: STEP-TIME=0.2. ------------------------------------------------------------------------------------------------------------------------------------ 18 ^ ^ IMAGE ^ ^ 1 96.8S 1 1 COND IF SV DELTA PLAN ------------------------------------------------------------------------------------------------------------------------------------ 19 ^ ^ ACCUM ^ G270M 2205 STEP-PATT=5 1 18M 20 1 COND IF SV DELTA COMB=FOUR PLAN Comments: USE FOUR DIODE SUM XBALANCE FOR 17. LINES 13-19 TEST AN ENHANCED TARGET LOCATE FLIGHT SOFTWARE ALGORITHM FOR USE WITH EXTENDED TARGETS. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 1534c [ 11] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations WFC HRS ^ ------------------------------------------------------------------------------------------------------------------------------------ Opmodes IMAGE ACQ ACCUM ^ ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters MAP=END-POINT SEARCH-SIZE=1 LOCATE=NO STEP-PATT=5 COMB=FOUR SEARCH-SIZE=5 SEARCH-SIZE=3 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for SV/HRS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 2.00 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements INT ACQ FOR 4; SEQ 3-5; ONBOARD ACQ FOR 5; SEQ 8-12; INT ACQ FOR 11,12; RT ANALYSIS FOR 11; SEQ 13-14 NO GAP; ONBOARD ACQ FOR 14; COND IF SV DELTA PLAN; COND IF SV DELTA PLAN ONBOARD ACQ FOR 16; SEQ 15-16 NO GAP; ONBOARD ACQ FOR 18; SEQ 17-19 NO GAP; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements F569W MIRROR-N2 G270M F284W ^ ------------------------------------------------------------------------------------------------------------------------------------ Target Names JUPITER EUROPA GANYMEDE CALLISTO IO SATURN TITAN MIMAS MARS DEIMOS JUPITER-FEATURE SATURN-FEATURE ------------------------------------------------------------------------------------------------------------------------------------