! File: 4156C.PROP ! Database: PEPDB ! Date: 20-FEB-1994:11:18:38 coverpage: title_1: SPATIALLY RESOLVED SPECTROSCOPY OF SATURN 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)665-5449 keywords_1: ATMOSPHERIC COMPOSITION, ATMOSPHERIC STRUCTURE, SATURN hours_pri: 14.50 num_pri: 2 time_crit: X ! end of coverpage abstract: line_1: Obtain spectrophotometry of selected regions of Saturn from 1500 to 3000A, to line_2: study chemical composition of the upper atmosphere. Pointings include the line_3: poles, the equator at the central meridian, and the equator at the limb. ! ! 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 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. On-board HRS and FOS acquisitions of planetary satellites, followed line_4: by slews to the specific features within the planetary system, will be used. ! 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 signal to noise than has been line_5: possible previously. ! question: 5 section: 1 line_1: Real-time observations are not currently planned for this proposal. ! 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 and line_2: divided by a published solar ultraviolet spectrum to obtain an albedo curve. line_3: This curve will be compared to model atmospheres to determine various trace line_4: gas compositions. Numerous hydrocarbon candidates arise from IR studies and line_5: theoretical work. An important part of the analysis will be to include the line_6: effects of vertical inhomogeneity. ! question: 10 section: 1 line_1: WE HAVE A DEDICATED SUN 4/280 FOR DATA ANALYSIS. ! question: 13 section: 1 line_1: Observations of Saturn will be made at moderate spatial resolution (1-2 arc line_2: sec) and spectral resolution (several A) at the poles and equator. The line_3: spectral range is from 1500 to 3000 A. ! !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: SATURN-EQ1 descr_1: PLANET SATURN lev1_1: STD = SATURN lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 3.22, lev2_3: ANG = 186.81, lev2_4: REF = NORTH comment_1: TRACKING FOR TARGETS 1-3 WILL BE AT comment_2: THE APPARENT RATE OF SATURN, WITH NO comment_3: COMPENSATION FOR PLANETARY ROTATION. comment_4: LEV2 PARAMETERS SET FOR OCT. 17/92. comment_5: MAY REQUIRE UPDATE WHEN ACTUAL WEEK comment_6: OF OBSERVATIONS IS KNOWN. 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: 2 name_1: SATURN-EQ2 descr_1: PLANET SATURN lev1_1: STD = SATURN lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 7.63, lev2_3: ANG = 265.76, lev2_4: REF = NORTH comment_1: LEV2 PARAMETERS SET FOR OCT. 17/92. comment_2: MAY REQUIRE UPDATE WHEN ACTUAL WEEK comment_3: OF OBSERVATIONS IS KNOWN. 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: 3 name_1: SATURN-NPOLE descr_1: PLANET SATURN lev1_1: STD = SATURN lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 6.54, lev2_3: ANG = 6.81, lev2_4: REF = NORTH comment_1: LEV2 PARAMETERS SET FOR OCT. 17/92. comment_2: MAY REQUIRE UPDATE WHEN ACTUAL WEEK comment_3: OF OBSERVATIONS IS KNOWN. 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: TITAN descr_1: SATELLITE TITAN lev1_1: STD=SATURN lev2_1: STD=TITAN fluxnum_1: 1 fluxval_1: V=8.3, B-V=1.28 ! targnum: 5 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 ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 1.000 targname: TITAN config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-N2 num_exp: 1 time_per_exp: 25S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE=5, param_3: FAINT=650 req_1: ONBOARD ACQ FOR 2-6; req_2: REQ UPDATE / 1-2; req_3: CYCLE 2 / 1-22.5; comment_1: AFTER SV/OLT 1347 IS EXECUTED, comment_2: UPDATES FOR PARAMS PROBABLE. comment_3: STEP-TIME=1.0. SCHEDULE NEAR comment_4: SATURN STATIONARY POINT TO comment_5: MINIMIZE GUIDE-STAR MOTION. ! linenum: 2.000 targname: TITAN config: HRS opmode: ACQ aperture: 2.0 sp_element: MIRROR-N2 num_exp: 1 time_per_exp: 265S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: SEARCH-SIZE =1, param_2: LOCATE=NO, param_3: FAINT = 0, param_4: MAP = END-POINT comment_1: STEP-TIME=1.0 ! linenum: 3.000 sequence_1: USE sequence_2: SEQUENCE5 targname: SATURN-EQ1 time_per_exp: X2 priority: 1 comment_1: FOR 3-6, SET UP ON ONE OF: comment_2: NORTH POLE; OR EQUATOR ON CML; comment_3: OR ON EQUATOR AT LIMB. TRACK comment_4: PLANETARY MOTION, BUT DO NOT comment_5: TRACK PLANETARY ROTATION. ! linenum: 5.000 sequence_1: USE sequence_2: SEQUENCE5 targname: SATURN-NPOLE time_per_exp: X2 priority: 1 ! linenum: 6.000 sequence_1: USE sequence_2: SEQUENCE6 targname: SATURN-EQ2 time_per_exp: X2 priority: 1 ! linenum: 18.000 targname: TITAN config: FOS/BL opmode: ACQ/FIRMWARE aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 0.96S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: MAP=COARSE, param_2: FAINT=660, req_1: ONBOARD ACQ FOR 19-22; req_2: SEQ 18-22 NO GAP; req_3: REQ UPDATE / 18 ! linenum: 19.000 targname: TITAN config: FOS/BL opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 3.84S s_to_n: 20 fluxnum_1: 1 priority: 1 ! linenum: 20.000 sequence_1: USE sequence_2: SEQUENCE2 targname: SATURN-NPOLE time_per_exp: X4 priority: 1 req_1: REQ UPDATE / 3-21; comment_1: WHEN WEEK OF OBSERVATION TIME IS comment_2: DETERMINED, OFFSETS FROM SATURN comment_3: CENTER CAN BE STATED ACCURATELY. ! linenum: 20.500 sequence_1: USE sequence_2: SEQUENCE2 targname: SATURN-EQ2 time_per_exp: X4 priority: 1 ! linenum: 21.000 sequence_1: USE sequence_2: SEQUENCE2 targname: SATURN-EQ1 time_per_exp: X4 priority: 1 ! linenum: 22.000 targname: TITAN config: FOS/BL opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 3.84S s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: SEQ 21-22 NON-INT; ! linenum: 22.500 targname: SATURN config: PC opmode: IMAGE aperture: P6 sp_element: F336W num_exp: 1 time_per_exp: 75S s_to_n: 50 fluxnum_1: 1 priority: 1 req_1: SEQ 22-22.5 NO GAP; ! linenum: 23.000 sequence_1: DEFINE sequence_2: SEQUENCE2 targname: # config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G270H wavelength: 2227-3306 num_exp: 1 time_per_exp: 2M s_to_n: 100 fluxnum_1: 1 priority: # req_1: GUID TOL 0.1" ! linenum: 24.000 sequence_1: DEFINE sequence_2: SEQUENCE2 targname: # config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 4M s_to_n: 90 fluxnum_1: 2 priority: # req_1: GUID TOL 0.1" ! linenum: 40.100 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1520 num_exp: 1 time_per_exp: 30M s_to_n: 6 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 40.200 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1555 num_exp: 1 time_per_exp: 20M s_to_n: 10 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 40.300 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1590 num_exp: 1 time_per_exp: 20M s_to_n: 11 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 40.400 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1625 num_exp: 1 time_per_exp: 20M s_to_n: 13 fluxnum_1: 1 priority: # param_1: ^ ! linenum: 40.500 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1660 num_exp: 1 time_per_exp: 20M s_to_n: 15 fluxnum_1: 1 priority: # param_1: ^ ! linenum: 40.600 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1695 num_exp: 1 time_per_exp: 20M s_to_n: 15 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 40.700 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1730 num_exp: 1 time_per_exp: 16M s_to_n: 20 fluxnum_1: 1 priority: # param_1: ^ ! linenum: 40.800 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1765 num_exp: 1 time_per_exp: 8M s_to_n: 20 fluxnum_1: 1 priority: # param_1: ^ ! linenum: 40.900 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1800 num_exp: 1 time_per_exp: 7M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 41.000 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1835 num_exp: 1 time_per_exp: 6M s_to_n: ^ fluxnum_1: 1 priority: # param_1: ^ ! linenum: 41.100 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1870 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 41.200 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1905 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 41.300 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1940 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 41.400 sequence_1: DEFINE sequence_2: SEQUENCE4 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1975 num_exp: 1 time_per_exp: 3.5M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 50.700 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1730 num_exp: 1 time_per_exp: 16M s_to_n: 20 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 50.800 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1765 num_exp: 1 time_per_exp: 8M s_to_n: 20 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 50.900 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1800 num_exp: 1 time_per_exp: 7M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 51.000 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: ^ opmode: ^ aperture: ^ sp_element: ^ wavelength: 1835 num_exp: 1 time_per_exp: 6M s_to_n: ^ fluxnum_1: 1 priority: # param_1: ^ ! linenum: 51.100 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1870 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 51.200 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1905 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 51.300 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1940 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 51.400 sequence_1: DEFINE sequence_2: SEQUENCE5 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1975 num_exp: 1 time_per_exp: 3.5M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 61.200 sequence_1: DEFINE sequence_2: SEQUENCE6 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1905 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 61.300 sequence_1: DEFINE sequence_2: SEQUENCE6 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1940 num_exp: 1 time_per_exp: 4M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! linenum: 61.400 sequence_1: DEFINE sequence_2: SEQUENCE6 targname: # config: HRS opmode: ACCUM aperture: 2.0 sp_element: G200M wavelength: 1975 num_exp: 1 time_per_exp: 3.5M s_to_n: 35 fluxnum_1: 1 priority: # param_1: STEP-PATT=1, ! ! end of exposure logsheet ! No scan data records found