Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 4476c Report Date: 09-May-96:19:38 Version: ********** Check-in Date: ********** 1.Proposal Title: ABUNDANCE AND DISTRIBUTION OF ATOMIC DEUTERIUM IN THE JOVIAN UPPER ATMOSPHERE THROUGH D-LYMAN ALPHA PROFILE ANALYSIS AT PLANETARY LIMB - CYC 3 MED ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID SOLAR SYSTEM GO 1 Long Term yrs 4476 Sub Category GIANT PLANETS ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone Dr. Lotfi Ben jaffel 5466 FRANCE 33-1-4320-1425 ------------------------------------------------------------------------------------ 7. Abstract The purpose of this proposal is to obtain middle and high resolution profiles of the D Lyman alpha line emitted by the Jovian upper atmosphere near the planet approaching limb, with the G160M grating and the LSA.The analysis of the profiles resulting from the limb scan, will provide, through our radiative transfer calculations and photochemistry models, the possibility for the first time to retrieve the abundance and the scale height of the deuterium at least in two locations of the upper atmosphere of Jupiter. On the other hand, continuous observations of Jupiter's H Lyman alpha emission since 1969, are slowly providing more precise evaluation of the [H] total content above the methane level. Recent IUE data, and short-term observation with the GHRS, are now providing this parameter with higher precision. A precise estimate of the D/H ratio will therefore be inferred. Contrary to Infra-red measurements where the chemical isotopic fractionation introduces a large uncertainty, the present method will provide a direct measure of the D/H ratio. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 5.43 par: 0 10. Num targs pri: 6 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: HRS ------------------------------------------------------------------------------------ 12. Special sched req: Time Critical obs. ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 4476c PI: Dr. Lotfi Ben jaffel Proposal Title: ABUNDANCE AND DISTRIBUTION OF ATOMIC DEUTERIUM IN THE JOVIAN UPPER ATMOSPHERE THROUGH D-LYMAN ALPHA PROFILE ANALYSIS AT PLANETARY LIMB - CYC 3 MED ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ Pi Lotfi Ben Jaffel 5466 FRANCE X Alfred Vidal-Madjar 5466 FRANCE X John T. Clarke 2660 USA Claude Emerich 5436 FRANCE X Randal G. Gladstone 1506 USA Jack C. Mc Connell YORK UNIVERSITY CANADA Renee Prange 5436 FRANCE X ------------------------------------------------------------------------------------ 2. Scientific Justification. ------------------------------------------------------------------------------------ 3. Description of proposed observations. The GHRS instrument is required with the grating G160M and the large aperture LSA. We propose an innovative technique to measure the D Lyman alpha line of Jupiter. This new technique involves reducing the effective field of view of LSA by observing across the planet's edge with the aperture Y deflection direction parallel to the limb. The net effect of such field of view reduction is to achieve improved spectral resolution with the LSA. To accurately locate the Lyman alpha planet's limb, we use the procedure proposed by the STI Moving Target Programs team for extended targets. We thus propose to use the Onboard HRS acquisition to locate the Jovian satellite Io, shift to Jupiter, and get the planetary limb. This will lead to a total error on the limb location of 0.1 arc- sec (K. Noll, private communication). The problem with the last technique is that the Lyman alpha limb of Jupiter is not accurately defined. To handle this difficulty, we use the well known 1 bar level position, and estimate the distance between the two planetary limbs through our radiative transfer calculation. From our analysis, we estimate that this distance is known with an error of +/- 150 km corresponding to 0.05 arc-sec. Given the 2 arc-sec LSA width, we are sure to get the planet's Lyman alpha limb within the LSA field of view with an error smaller than 0.15 arc-sec. We therefore require 5 dark orbits, 4 for different positions of LSA along the X axis across the expected planetary limb intended to properly scan the region, and the last for sky background. The approaching limb is selected. Fine track is required. As a precise aperture orientation is also required and the possible launch of the repair mission in december 93, observations should be scheduled near next Jupiter opposition, to minimize the Earth geocoronal background and to limit the extent of the dark crescent near the terminator (preferred solution). Otherwise schedule between dec. 93 and 1994 Jupiter's opposition if the repair mission is delayed. In any case target latitude should not exceed 50 deg. in both hemispheres (to avoid auroral contamination). 1 kR at 1216 Angstroms within a 2"*0.25" solid angle (one of our spatial -spectral bin) roughly corresponds to 1.53e-14 ergs/cm2-sec. We expect the D Lyman alpha line to be ~0.04 Angstrom large which gives a peak level of 3.83e-13 ergs/cm2-sec-Angstrom. For G160M and LSA the sensitivity at 1216 Angstroms is ~3.67e11(counts/sec-diode)/(erg/cm2-sec-A). It follows that for 1 kR we expect a peak rate of roughly 0.14 counts/sec-diode. For a 35min integration time, we derived a signal to noise S/N > 16 per kR per spectral bin i.e. S/N > 48 per kR for the LSA. Page 3 ------------------------------------------------------------------------------------ 4. Justification of need for HST observations. Only IUE could allow UV observations, but its sensitivity, slit shape and size and achievable S/N make the technique we are proposing impossible. Our program is therefore completely based on the capabilities. the GHRS and ST offer. We do realize that our program is difficult but we think that the challenge is worth taking. Indeed, if it succeeds, this program will provide for the first time the deuterium distribution and abundance in the Jovian upper atmosphere (a key parameter in the study of the Jovian aeronomy) and therefore can be extended to the observation of other solar system planets. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. We require to observe a Jovian approaching limb with the Y deflection direction of the large aperture parallel to the planetary limb and the +X dispersion direction outward the limb. This request a particular roll angle for the spacecraft. Minimize the geocoronal background by observing during dark side and no later than six weeks after Jupiter's opposition this year. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. As we request to acquire all offsets on the limb from only one acquisition of Io, We request a WAVE exposure at each offset position across the limb intended to monitor wavelength drifts. Giving the aperture spectral resolution we cannot use the Lyman alpha center line as a reference. Moreover, Doppler shifts induced by thermospheric wind may occur and we would like to avoid the confusing situation where a wavelength drift may be interpreted as a real Doppler shift. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. We plan to use the calibrated data provided as the output of the RSDT and CDBS software. Additional data processing will also possible with the Institute of Astrophysics of Paris computer facilities and the STSDAS, including the removal of the background geocoronal and the interplanetary emissions. This will be properly done as one of the exposure we require is the measurement of this background. Moreover geocoronal Lyman alpha line with very high S/N is now available from archival data obtained by GO programs using G160M, and both LSA and SSA. McConnel will provide us with complete atmospheric models based on photochemistry and vertical transport of the constituents. Our radiative transfer 3-D calculations (Ben Jaffel and Gladstone) will thus provide us the D and H lyman alpha line models that we convolve with the G160M line spread function. The deuterium abundance and scale height are therefore derived following the procedure detailed in phase I (section 2.). As the D Lyman alpha line is thin, the observation of a dark limb is not crucial (as far as the emission angle is > 80 deg.). In the worst case we expect a 1.5-2.0 kR of D Lyman alpha emission. Hopefully, the H Lyman alpha emission should be weaker near the terminator. The [H] total content has been derived from Voyager and IUE data with a high confidence and should be in the range 3-4e17cm-2. A new estimate will be probably derived from GHRS cycle 2 proposal ID 3511. The most important uncertainties on [H] and [D] will be the Lyman alpha solar flux and the instrument calibration but this does not matter for the ratio [D]/[H]. ------------------------------------------------------------------------------------ 8. Additional comments or special requests. Page 4 ------------------------------------------------------------------------------------ 9. Description of previous HST work. 1. GO 2602 - "The excitation of the atmospheres of planetary satellites", J. Clarke PI. Unrelated. 2. GO 2603 - "Parallel observations of H Ly alpha emission from the local ISM", J. Clarke PI. Related for sky background. 3. GO 2393 - "D/H ratio of Venus and MArs from Ly alpha emission", J. Clarke Co-I. Unrelated. 4. GTO 1269 - "Far UV observations of the giant planets", A. Vidal-Madjar Co-I. Related. 5. GO 2536 - "Deuterium in the local interstellar gas", A. Vidal-Madjar PI. 6. GO 3482 - "The nature of the variable infalling material on the star Beta Pictoris", A. Vidal-Madjar. Unrelated. 7. GO 3511 -"H Lyman alpha dayglow emission line from the outer planets", Clarke PI, Ben Jaffel, Gladstone, Prange, and Vidal-Madjar Co-I. Related. 8. GO 2461 - "Interplanetary/interstellar gas connection: search for the local cloud" - A. Vidal-Madjar Co-I - unrelated. 9. GO 2625 - "Excitation Processes for the Outer Planet UV Emissions", J. Clarke Co-I - possibly related scientifically. 10. GO 3616 - "Upper Atmospheres of Uranus and Neptune", J. Clarke Co-I may be related scientifically. 11. GO 3862 - "The Excitation of the Atmospheres of Planetary Satellites", J. Clarke PI - unrelated. ------------------------------------------------------------------------------------ 10. Resources to be supplied by investigator's institution(s). The Institute of Astrophysics of Paris operates computer equipment consisting of two VAX 780 & 3600, DEC station, and SUN workstations connected to computer and file servers. This system is connected to two computer networks: the NASA span and to Internet. MiDAS and IRAF are available at the Institute. The french proposers are appointed by the CNRS. ------------------------------------------------------------------------------------ 11. Address Information Name: LOTFI BEN JAFFEL Category: PI Institution: 5466 Address: 98 bis Boulevard Arago City: 75014 PARIS State: Zip Code: Country: France Telephone: 33-1-4320-1425 Telex (or e-mail): ------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4476c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 1 | TARGET NAME: IO-ACQUISITION ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: SATELLITE IO ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER, ACQ = 0.1 | STD = IO | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | SEP OF IO JUPITER FROM EARTH LT 60" | SEP OF IO JUPITER FROM EARTH GT 30" | OLG OF JUPITER BETWEEN -45 45 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |SURF(V) = 5.8 +/- 0.5 | HRS ACQUISITION OF IO FOR PEAKUP ON 2 |SIZE = 1.0 +/- 0.2 | SATELLITE CENTER. LSA IS REQUIRED. | | FIRST STEP OF THE TECHNIQUE TO | | ACCURATELY ACQUIRE THE LIMB OF | | JUPITER DESCRIBED IN TARGNUM | | 2,3,4,5,6 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 2 | TARGET NAME: JUPITER-LIMB1 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER, | TYPE = TORUS, LONG = 90, | LAT = -48, RAD = 67505., | POLE_LAT = 90 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | OLG OF JUPITER BETWEEN -45 45 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |SURF(V) = 5.4 | GHRS LSA WITH G160M ON JUPITER LIMB. 2 |SURF-LINE(1216) = 7. +/- 1. E-13 | Y DIRECTION OF LSA PARALLEL TO THE 3 |W-LINE(1216) = 0.04 +/- 0.02 | LIMB. THE SPACECRAFT ROLL ANGLE IS | | SUCH THAT THE APERTURE ORIENTATION | | IS THE ONE REQUIRED AT LAT=48 SOUTH. | | APPROACHING LIMB OF JUPITER IS ALSO | | REQUIRED. IF SCHEDULED AFTER 1993 | | CONJUNCTION, LAT=25 SOUTH, AND | | RAD=69230. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4476c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 3 | TARGET NAME: JUPITER-LIMB2 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER, | TYPE = TORUS, LONG = 90, | LAT = -48, RAD = 69092., | POLE_LAT = 90 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | OLG OF JUPITER BETWEEN -45 45 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |SURF(V) = 5.4 | GHRS LSA WITH G160M ON JUPITER LIMB. 2 |SURF-LINE(1216) = 7. +/- 1. E-13 | Y DIRECTION OF LSA PARALLEL TO THE 3 |W-LINE(1216) = 0.04 +/- 0.02 | LIMB. THE SPACECRAFT ROLL ANGLE IS | | SUCH THAT THE APERTURE ORIENTATION | | IS THE ONE REQUIRED AT LAT=48 SOUTH. | | APPROACHING LIMB OF JUPITER IS ALSO | | REQUIRED. IF SCHEDULED AFTER 1993 | | CONJUNCTION, LAT=25 SOUTH, AND | | RAD=70816. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 4 | TARGET NAME: JUPITER-LIMB3 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER, | TYPE = TORUS, LONG = 90, | LAT = -48, RAD = 70678, | POLE_LAT = 90 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | OLG OF JUPITER BETWEEN -45 45 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |SURF(V) = 5.4 | GHRS LSA WITH G160M ON JUPITER LIMB. 2 |SURF-LINE(1216) = 7. +/- 1. E-13 | Y DIRECTION OF LSA PARALLEL TO THE 3 |W-LINE(1216) = 0.04 +/- 0.02 | LIMB. THE SPACECRAFT ROLL ANGLE IS | | SUCH THAT THE APERTURE ORIENTATION | | IS THE ONE REQUIRED AT LAT=48 SOUTH. | | APPROACHING LIMB OF JUPITER IS ALSO | | REQUIRED. IF SCHEDULED AFTER 1993 | | CONJUNCTION, LAT=25 SOUTH, AND | | RAD=72403. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET LIST b)Solar System Targets ID = 4476c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 5 | TARGET NAME: JUPITER-LIMB4 ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: FEATURE JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER, | TYPE = TORUS, LONG = 90, | LAT = -48, RAD = 72265., | POLE_LAT = 90 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | OLG OF JUPITER BETWEEN -45 45 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |SURF(V) = 5.4 | GHRS LSA WITH G160M ON JUPITER LIMB. 2 |SURF-LINE(1216) = 7. +/- 1. E-13 | Y DIRECTION OF LSA PARALLEL TO THE 3 |W-LINE(1216) = 0.04 +/- 0.02 | LIMB. THE SPACECRAFT ROLL ANGLE IS | | SUCH THAT THE APERTURE ORIENTATION | | IS THE ONE REQUIRED AT LAT=48 SOUTH. | | APPROACHING LIMB OF JUPITER IS ALSO | | REQUIRED. IF SCHEDULED AFTER 1993 | | CONJUNCTION, LAT=25 SOUTH, AND | | RAD=73990.. | ------------------------------------------------------------------------------------------------------------------------------------ TARGET NUMBER: 6 | TARGET NAME: SKY-BACKGROUND ------------------------------------------------------------------------------------------------------------------------------------ TARGET DESCRIPTION: OFFSET JUPITER ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 1 | TARGET POSITION LEVEL 2 | STD = JUPITER, ACQ = 30, | TYPE = TORUS, LONG = 90, | LAT = -48, RAD = 600000.0, | POLE_LAT = 90 | ------------------------------------------------------------------------------------------------------------------------------------ TARGET POSITION LEVEL 3 | WINDOWS | | OLG OF JUPITER BETWEEN -45 45 | ------------------------------------------------------------------------------------------------------------------------------------ REF | DATA | COMMENTS | | 1 |SURF-LINE(1216) = 3. +/- 1. E-13 | GHRS LSA WITH G160M ON SKY ROUGHLY 3 2 |W-LINE(1216) = 0.1 +/- 0.1 | ARC MIN FROM JUPITER. APERTURE | | ORIENTATION SHOULD BE THE SAME THAN | | FOR PREVIOUS JUPITER'S LIMB | | OBSERVATIONS.OBSERVE LYMAN ALPHA | | LINE PROFILE FROM SKY BACKGROUND GEO | | AND IPM EMISSIONS. IF SCHEDULED | | AFTER 1993 CONJUNCTION, LAT=-25. | ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4476c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 10 IO- HRS ACQ 2.0 MIRROR-N2 SEARCH-SIZE=3 1 1.8S 1 1 CYCLE 3 ACQUISITION BRIGHT=RETURN GUID TOL 0.05" LOCATE=EXTENDED ORIENT 93D +/- 5D AFTER 1-APR-93 ONBOARD ACQ FOR 50 -53 Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D OK TO SCHEDULE IF LOCATE=EXTENDED NOT READY. STEPTIME = 0.2 SEC ------------------------------------------------------------------------------------------------------------------------------------ 20 IO- HRS ACQ/ 2.0 MIRROR-N2 1 20.4S 1 1 CYCLE 3 ACQUISITION PEAKUP GUID TOL 0.05" ORIENT 93D +/- 5D AFTER 1-APR-93 ONBOARD ACQ FOR 50 Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D STEPTIME = 0.2 SEC. ------------------------------------------------------------------------------------------------------------------------------------ 50 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB3 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT SEQ 50-53 NO GAP Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ 50.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 50 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR LIMB3 POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4476c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 51 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB3 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ 51.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 51 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR LIMB3 POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 52 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB3 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ 52.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 52 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR LIMB3 POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 53 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB3 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4476c [ 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 ------------------------------------------------------------------------------------------------------------------------------------ 53.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 53 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR LIMB3 POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 57 IO- HRS ACQ 2.0 MIRROR-N2 SEARCH-SIZE=3 1 1.8S 1 1 CYCLE 3 ACQUISITION BRIGHT=RETURN GUID TOL 0.05" LOCATE=EXTENDED ORIENT 93D +/- 5D AFTER 1-APR-93 ONBOARD ACQ FOR 60 -63 Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D OK TO SCHEDULE IF LOCATE=EXTENDED NOT READY. STEPTIME = 0.2 SEC ------------------------------------------------------------------------------------------------------------------------------------ 58 IO- HRS ACQ/ 2.0 MIRROR-N2 1 20.4S 1 1 CYCLE 3 ACQUISITION PEAKUP GUID TOL 0.05" ORIENT 93D +/- 5D AFTER 1-APR-93 ONBOARD ACQ FOR 60 Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D STEPTIME = 0.2 SEC. ------------------------------------------------------------------------------------------------------------------------------------ 60 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB4 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT SEQ 60-63 NO GAP Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ 60.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 60 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4476c [ 11] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 61 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB4 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ 61.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 61 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 62 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB4 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ 62.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 62 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 63 JUPITER- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 47 2 1 CYCLE 3 LIMB4 FP-SPLIT=FOUR 35M 3 GUID TOL 0.05" COMB=FOUR ORIENT 93D +/- 5D DOPPLER=ON AFTER 1-APR-93 STEP-TIME=1.0 NON-INT Comments: THE APPROACHING LIMB IS REQUIRED. IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D IN ANY CASE, THE APERTURE Y DIRECTION SHOULD BE PARALLEL TO THE PLANETARY LIMB. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4476c [ 12] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 63.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 63 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 70 SKY- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 1 1 CYCLE 3 BACKGROUND FP-SPLIT=FOUR 2 ORIENT 93D +/- 5D COMB=FOUR AFTER 1-APR-93 DOPPLER=ON NON-INT PCS MODE G SEQ 70-73 NO GAP Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D ------------------------------------------------------------------------------------------------------------------------------------ 70.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 70 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR SKY POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 71 SKY- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 1 1 CYCLE 3 BACKGROUND FP-SPLIT=FOUR 2 ORIENT 93D +/- 5D COMB=FOUR AFTER 1-APR-93 DOPPLER=ON NON-INT PCS MODE G Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D ------------------------------------------------------------------------------------------------------------------------------------ 71.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 71 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR SKY POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 72 SKY- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 1 1 CYCLE 3 BACKGROUND FP-SPLIT=FOUR 2 ORIENT 93D +/- 5D COMB=FOUR AFTER 1-APR-93 DOPPLER=ON NON-INT PCS MODE G Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 4476c [ 13] ------------------------------------------------------------------------------------------------------------------------------------ 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 ------------------------------------------------------------------------------------------------------------------------------------ 72.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 72 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR SKY POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ 73 SKY- HRS ACCUM 2.0 G160M 1216 STEP-PATT=5 2 6 M 1 1 CYCLE 3 BACKGROUND FP-SPLIT=FOUR 2 ORIENT 93D +/- 5D COMB=FOUR AFTER 1-APR-93 DOPPLER=ON NON-INT PCS MODE G Comments: IF SCHEDULED AFTER NEXT JUPITER CONJUNCTION THEN ORIENT 70D +/- 5D ------------------------------------------------------------------------------------------------------------------------------------ 73.5 WAVE HRS ACCUM SC2 G160M 1216. STEP-PATT=5 1 60S 1 CALIB FOR 73 COMB=FOUR CYCLE 3 DOPPLER=ON Comments: WAVE CALIBRATION FOR SKY POSITION TO MONITOR WAVELENGTH DRIFTS. ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 4476c [ 14] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations HRS ------------------------------------------------------------------------------------------------------------------------------------ Opmodes ACQ ACQ/PEAKUP ACCUM ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SEARCH-SIZE BRIGHT LOCATE STEP-PATT FP-SPLIT COMB DOPPLER STEP-TIME STEP-PATT=5 COMB=FOUR DOPPLER=ON ------------------------------------------------------------------------------------------------------------------------------------ Proposal for GO ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours 5.43 ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category SOLAR SYSTEM ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category GIANT PLANETS ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements CYCLE 3; GUID TOL 0.05" ; ORIENT 93D +/- 5D ; AFTER 1-APR-93 ; ONBOARD ACQ FOR 50-53 GUID TOL 0.05"; ORIENT 93D +/- 5D; AFTER 1-APR-93; ONBOARD ACQ FOR 50 NON-INT; SEQ 50-53 NO GAP; CALIB FOR 50; CALIB FOR 51; CALIB FOR 52; CALIB FOR 53; ONBOARD ACQ FOR 60-63 ONBOARD ACQ FOR 60 SEQ 60-63 NO GAP; CALIB FOR 60; CALIB FOR 61; CALIB FOR 62; CALIB FOR 63; PCS MODE G; SEQ 70-73 NO GAP; CALIB FOR 70; CALIB FOR 71; CALIB FOR 72; CALIB FOR 73; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements MIRROR-N2 G160M ------------------------------------------------------------------------------------------------------------------------------------ Target Names IO-ACQUISITION JUPITER-LIMB1 JUPITER-LIMB2 JUPITER-LIMB3 JUPITER-LIMB4 SKY-BACKGROUND ------------------------------------------------------------------------------------------------------------------------------------