! File: 3306C.PROP ! Database: PEPDB ! Date: 19-FEB-1994:02:26:07 coverpage: title_1: SPATIALLY RESOLVED SPECTROSCOPY OF JUPITER, SATURN AND SATURN'S RINGS title_2: -- CYCLE 2 sci_cat: SOLAR SYSTEM sci_subcat: GIANT PLANETS proposal_for: GTO/OS cont_id: 1288 pi_fname: JOHN pi_mi: J. pi_lname: CALDWELL pi_inst: YORK UNIVERSITY pi_country: CANADA pi_phone: (416)736-2100 X7721 keywords_1: ATMOSPHERIC CHEMISTRY, JUPITER, SATURN hours_pri: 14.50 num_pri: 2 time_crit: X ! end of coverpage abstract: line_1: Obtain Spectrophotometry of selected regions of Jupiter and Saturn from 1500 to line_2: 3000 A, to study chemical composition of the upper atmosphere at various places line_3: with distinctive characteristics, including the poles, belt, zones and the line_4: Great Red Spot. Also obtain spectra of Saturn's A and B rings between 1500 and line_5: 2300 A. ! ! end of abstract general_form_proposers: lname: CALDWELL fname: JOHN mi: J. inst: YORK UNIVERSITY country: CANADA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: These observations by the FOS and the HRS depend on the ability of the HST to line_2: acquire a specific feature of a planet within a spectrograph aperture, and to line_3: track it. Acquisition images with the PC are listed in the exposure logsheet, line_4: probably to be used in real-time to offset the spacecraft to the proper place. line_5: In the opinion of the proposer, the capability of the HST to do this must and line_6: will be demonstrated, but the precise details of the best method are not yet line_7: clear. The choice of spectrographs for the various specific exposures also line_8: assumes that the FOS can be used on red objects, possibly with corrections, line_9: down to 1800 A. This assumption will be checked during SV with a test called line_10: the "SPECTROGRAPH RED LEAK TEST". line_11: The observations should be scheduled as soon as practical after the line_12: acquisition/tracking and the red leak characteristics have been determined and line_13: assimilated. line_15: comment continuation from EL Page 8, Line 17: to be observed when the GRS isn't line_16: there. Ephemerides can be calculated when the day of observation is known. The line_17: GRS NPO, NP180, SPO and SP180 must be tracked, including Jupiter's rotation. line_18: Other fields may be tracked just for Jupiter's motion, letting the planet line_19: rotate under the aperture. ! question: 4 section: 1 line_1: The ST is required both for access to the ultraviolet below 3000 A, where many line_2: molecules of planetary interest have strong absorption bands, and for its line_3: spatial resolution capability. Of further importance is the ability of the ST line_4: to obtain data at better spectral resolution and higher signal to noise than line_5: has previously been possible. It should be noted that very high spectral line_6: resolution is not required by the physics of this problem, however. ! question: 5 section: 1 line_1: Real-time observing may be necessary in the acquisition phase of the line_2: observations. Special scheduling is also required for some features, such as line_3: the Great Red Spot and the poles, where longitudinal variations are very line_4: important, but other locations, such as standard belts and zones, can be line_5: observed when convenient. (Note however that the STrZ cannot be observed at line_6: those times when the GRS is present.) ! question: 6 section: 1 line_1: There are no special requirements of these types. ! question: 7 section: 1 line_1: Spectra will be combined into one covering the range from 1500 to 3200 A (or line_2: from 1500 to 2200 A for the rings), and divided by a published solar line_3: ultraviolet spectrum to obtain an albedo curve. This curve will be compared to line_4: model atmospheres with various trace gas compostions, to determine the best line_5: fit. Numerous hydrocarbon candidates arise from infrared studies and line_6: theoretical work. An important part of the analysis will be to include the line_7: effects of vertical inhomogeneity. This is necessary because in the line_8: ultraviolet, the continuum opacity, Rayleigh scattering, is very strong. line_10: For the rings, particle size effects will be explored through Mie scattering line_11: theory. ! question: 8 section: 1 line_1: Because these targets are all moving across the sky, it may be necessary to line_2: devote considerable effort to coordinating these observations with those of line_3: other observers, to maximize spacecraft efficiency. ! question: 10 section: 1 line_1: WE HAVE A DEDICATED SUN FOR DATA ANALYSIS. ! question: 13 section: 1 line_1: Observations will be made at moderate spatial resolution (2 arc sec) and line_2: spectral resolution (several A) of Jupiter, Saturn and Saturn's rings, at line_3: various characteristic places, including belts, zones, poles, the GRS and the A line_4: and B rings. The spectral range is from 1500 to 3000 A for many of the line_5: pointings, and from 1500 to 2300 for the rest. ! !end of general form text general_form_address: lname: CALDWELL fname: JOHN mi: J. category: PI inst: YORK UNIVERSITY ! ! end of general_form_address records ! No fixed target records found solar_system_targets: targnum: 1 name_1: JUPITER-ACQ1 descr_1: PLANET JUPITER lev1_1: STD = JUPITER wind_1: CML OF JUPITER FROM EARTH BETWEEN 315 wind_2: 85 comment_1: LONGITUDES IN WINDOW FIELD ARE SYSTEM comment_2: II, NOT SYSTEM III. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 fluxnum_4: 4 fluxval_4: V= -2.0 fluxnum_5: 5 fluxval_5: SIZE = 25 ! targnum: 2 name_1: JUPITER-ACQ2 descr_1: PLANET JUPITER lev1_1: STD = JUPITER wind_1: CML OF JUPITER FROM EARTH BETWEEN 135 wind_2: 225 fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 fluxnum_4: 4 fluxval_4: V= -2.0 fluxnum_5: 5 fluxval_5: SIZE = 25 ! targnum: 3 name_1: JUPITER-GRS1 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = CARTO, LONG = 20, lev2_2: LAT = -20, R_LONG = 0.0, lev2_3: R_LAT = 0.0, EPOCH = lev2_4: 1-DEC-90:00:00:00 wind_1: CML OF JUPITER FROM EARTH BETWEEN 350 wind_2: 50 comment_1: THE GREAT RED SPOT IS KNOWN TO comment_2: MOVE. SLIGHTLY UPDATED POSITION comment_3: AND WINDOW IN CYCLE 1 WOULD BE comment_4: HIGHLY DESIRABLE, EVEN IF A comment_5: REAL-TIME, INT ACQ WILL BE USED. comment_6: LONGITUDES IN LEVEL 2 POSITION AND comment_7: WINDOW ARE SYSTEM II, NOT SYSTEM comment_8: III. LATITUDE QUOTED ABOVE IS comment_9: *PLANETOCENTRIC*. PLANETOGRAPHIC comment_10: LATITUDE WOULD BE -22.5 fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 4 name_1: JUPITER-GRS2 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = CARTO, LONG = 20, lev2_2: LAT = -20, R_LONG = 0.0, lev2_3: R_LAT = 0.0, EPOCH = lev2_4: 1-DEC-90:00:00:00 wind_1: CML OF JUPITER FROM EARTH BETWEEN 75 wind_2: 90 comment_1: THE GREAT RED SPOT IS KNOWN TO comment_2: MOVE. SLIGHTLY UPDATED POSITION comment_3: AND WINDOW IN CYCLE 1 WOULD BE comment_4: HIGHLY DESIRABLE, EVEN IF A comment_5: REAL-TIME, INT ACQ WILL BE USED. comment_6: LONGITUDES IN LEVEL 2 POSITION AND comment_7: WINDOW ARE SYSTEM II, NOT SYSTEM comment_8: III. LATITUDE QUOTED ABOVE IS comment_9: *PLANETOCENTRIC*. PLANETOGRAPHIC comment_10: LATITUDE WOULD BE -22.5 fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 5 name_1: JUPITER-NP180 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE=CARTO, LONG = 180, LAT = +60 wind_1: CML OF JUPITER FROM EARTH BETWEEN 150 wind_2: 210 comment_1: LONG. IN LEVEL 2 AND CML IN WINDOW comment_2: REFER TO SYSTEM III, UNLIKE GRS comment_3: TARGET. THE WINDOW REFERS TO THE comment_4: ALLOWABLE RANGE FOR THE comment_5: SPECTROSCOPY OF THE TARGET NEAR THE comment_6: CENTRAL MERIDIAN. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 6 name_1: JUPITER-NP0 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE=CARTO, LONG = 0, LAT = +60 wind_1: CML OF JUPITER FROM EARTH BETWEEN 330 wind_2: 30 comment_1: LONG. IN LEVEL 2 AND CML IN WINDOW comment_2: REFER TO SYSTEM III, UNLIKE GRS comment_3: TARGET. THE WINDOW REFERS TO THE comment_4: ALLOWABLE RANGE FOR THE comment_5: SPECTROSCOPY OF THE TARGET NEAR THE comment_6: CENTRAL MERIDIAN. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 7 name_1: JUPITER-STZ1 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT comment_1: THE LATITUDE WILL BE SELECTED FROM comment_2: A PREVIOUSLY OBTAINED PC IMAGE. comment_3: THE LONGITUDE IS ARBITRARY. comment_4: THE OBSERVATION WILL BE ON THE comment_5: CENTRAL MERIDIAN WITHOUT TRACKING comment_6: JUPITER'S ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 8 name_1: JUPITER-STZ2 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT comment_1: THE LATITUDE WILL BE SELECTED FROM comment_2: A PREVIOUSLY OBTAINED PC IMAGE. comment_3: THE LONGITUDE IS ARBITRARY. comment_4: THE OBSERVATION WILL BE 60 DEG WEST OF comment_5: CENTRAL MERIDIAN WITHOUT TRACKING comment_6: JUPITER'S ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 9 name_1: JUPITER-STZ3 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT comment_1: THE LATITUDE WILL BE SELECTED FROM comment_2: A PREVIOUSLY OBTAINED PC IMAGE. comment_3: THE LONGITUDE IS ARBITRARY. comment_4: THE OBSERVATION WILL BE 60 DEG EAST OF comment_5: CENTRAL MERIDIAN WITHOUT TRACKING comment_6: JUPITER'S ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 10 name_1: JUPITER-NEB1 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT comment_1: THE LATITUDE WILL BE SELECTED FROM comment_2: A PREVIOUSLY OBTAINED PC IMAGE. comment_3: THE LONGITUDE IS ARBITRARY. comment_4: THE OBSERVATION WILL BE ON THE comment_5: CENTRAL MERIDIAN WITHOUT TRACKING comment_6: JUPITER'S ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 11 name_1: JUPITER-NEB2 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT comment_1: THE LATITUDE WILL BE SELECTED FROM comment_2: A PREVIOUSLY OBTAINED PC IMAGE. comment_3: THE LONGITUDE IS ARBITRARY. comment_4: THE OBSERVATION WILL BE 60 DEG WEST OF comment_5: CENTRAL MERIDIAN WITHOUT TRACKING comment_6: JUPITER'S ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 12 name_1: JUPITER-NEB3 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT comment_1: THE LATITUDE WILL BE SELECTED FROM comment_2: A PREVIOUSLY OBTAINED PC IMAGE. comment_3: THE LONGITUDE IS ARBITRARY. comment_4: THE OBSERVATION WILL BE 60 DEG EAST OF comment_5: CENTRAL MERIDIAN WITHOUT TRACKING comment_6: JUPITER'S ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 13 name_1: JUPITER-SP0 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 14 name_1: JUPITER-SP180 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 15 name_1: SATURN descr_1: PLANET SATURN lev1_1: STD = SATURN fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 16 name_1: SATURN-EQ1 descr_1: OFFSET SATURN lev1_1: STD = SATURN lev2_1: TYPE = RT_SELECT comment_1: TRACKING FOR TARGETS 16-21 WILL BE AT comment_2: THE APPARENT RATE OF SATURN, WITH NO comment_3: COMPENSATION FOR PLANETARY ROTATION. fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 17 name_1: SATURN-EQ2 descr_1: OFFSET SATURN lev1_1: STD = SATURN lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 18 name_1: SATURN+40 descr_1: OFFSET SATURN lev1_1: STD = SATURN lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 19 name_1: SATURN-NPOLE descr_1: OFFSET SATURN lev1_1: STD = SATURN lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 20 name_1: SATURN-ARING descr_1: OFFSET SATURN lev1_1: STD = SATURN lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! targnum: 21 name_1: SATURN-BRING descr_1: OFFSET SATURN lev1_1: STD = SATURN lev2_1: TYPE = RT_SELECT fluxnum_1: 1 fluxval_1: F(2200)=1.3E-12 fluxnum_2: 2 fluxval_2: F(1800)=4.8E-14 fluxnum_3: 3 fluxval_3: F(1700)=1.3E-14 ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 2.000 sequence_1: DEFINE sequence_2: SEQUENCE1 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G140L wavelength: 1515-1800 num_exp: 3 time_per_exp: 15M s_to_n: 35 fluxnum_1: 3 priority: # req_1: GUID TOL 0.1" comment_1: THE EXPOSURE TIME SHOULD BE ADJUSTED comment_2: SO THAT ALL THREE SEGMENTS FIT INTO comment_3: ONE VISIBILITY PERIOD. ! linenum: 5.000 sequence_1: DEFINE sequence_2: SEQUENCE2 targname: # config: FOS/BL opmode: ACCUM aperture: 2.0-BAR sp_element: G270H wavelength: 2227-3306 num_exp: 1 time_per_exp: 30S s_to_n: 100 fluxnum_1: 1 priority: # req_1: GUID TOL 0.1" ! linenum: 6.000 sequence_1: DEFINE sequence_2: SEQUENCE2 targname: # config: FOS/BL opmode: ACCUM aperture: 2.0-BAR sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 15M s_to_n: 90 fluxnum_1: 2 priority: # req_1: GUID TOL 0.1" comment_1: DEPENDS ON THE SV "SPECTROGRAPH RED comment_2: LEAK TEST". ! linenum: 16.000 sequence_1: USE sequence_2: SEQUENCE2 targname: JUPITER-SP180 priority: 1 req_1: CYCLE 2 / 16-17 ! linenum: 17.000 sequence_1: USE sequence_2: SEQUENCE2 targname: JUPITER-SP0 priority: 1 comment_1: FOR THE ABOVE, TARGETS SP0, SP180, comment_2: NP0, NP180 REFER TO POLAR LIMB AT comment_3: SPECIAL CENTRAL MERIDIAN LONGITUDES. comment_4: THESE ARE TIME CRITICAL, THEREFORE. comment_5: SO IS THE GRS (GREAT RED SPOT). ! linenum: 18.000 sequence_1: DEFINE sequence_2: SEQUENCE3 targname: # config: FOS/BL opmode: ACCUM aperture: 2.0-BAR sp_element: G270H wavelength: 2227-3306 num_exp: 1 time_per_exp: 1M s_to_n: 85 fluxnum_1: 1 priority: # req_1: GUID TOL 0.1" ! linenum: 18.100 sequence_1: DEFINE sequence_2: SEQUENCE3 targname: # config: FOS/BL opmode: ACCUM aperture: 2.0-BAR sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 15M s_to_n: 33 fluxnum_1: 2 priority: # req_1: GUID TOL 0.1" comment_1: DEPENDS ON THE SV "SPECTROGRAPH RED comment_2: LEAK TEST". ! linenum: 18.300 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: FOS/BL opmode: ACCUM aperture: 2.0-BAR sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 100S s_to_n: 8 fluxnum_1: 1 priority: # req_1: GUID TOL 0.1" comment_1: DEPENDS ON THE SV "SPECTROGRAPH RED comment_2: LEAK TEST". ! linenum: 18.400 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G140L wavelength: 1515-1800 num_exp: 1 time_per_exp: 1700S s_to_n: 5 fluxnum_1: 1 priority: # req_1: GUID TOL 0.1" ! linenum: 23.000 sequence_1: USE sequence_2: SEQUENCE4 targname: SATURN-ARING priority: 2 req_1: CYCLE 2 / 23-25 ! linenum: 25.000 sequence_1: USE sequence_2: SEQUENCE4 targname: SATURN-BRING priority: 2 comment_1: EXPECT TO BIN RING DATA OVER MANY comment_2: DIODES TO IMPROVE S/N WITHOUT LOSING comment_3: SIGNIFICANT SPECTRAL RESOLUTION comment_4: INFORMATION ! ! end of exposure logsheet ! No scan data records found