! File: 4203C.PROP ! Database: PEPDB ! Date: 20-FEB-1994:13:07:12 coverpage: title_1: SPATIALLY RESOLVED SPECTROSCOPY OF JUPITER title_2: -- CYCLE 2/APRIL/MAY 1993 sci_cat: SOLAR SYSTEM sci_subcat: GIANT PLANETS proposal_for: AUG/OS cont_id: 3833 pi_fname: JOHN pi_mi: J. pi_lname: CALDWELL pi_inst: YORK UNIVERSITY pi_country: CANADA pi_phone: (416)665-5449 keywords_1: ATMOSPHERIC CHEMISTRY, JUPITER hours_pri: 5.72 num_pri: 2 time_crit: X ! end of coverpage abstract: line_1: Obtain spectrophotometry of the Great Red Spot and north pole of Jupiter line_2: from 1700 to 2300A, to investigate the chemical composition of the upper line_3: atmosphere at these regions which have distinctive characteristics. ! ! 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 depend on the ability of the HST to acquire a line_2: specific feature of the planet within a small aperture, and to track it. line_3: Real-time ACQs of Io by the FOS in dispersed light will be used to define line_4: position of the Jupiter system with respect to the guide stars. ! 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 in the UV. It should be noted that very high line_6: spectral resolution is not required by the physics of this problem, however. ! question: 5 section: 1 line_1: Real-time observing will be necessary in the ACQ phase of the observations. line_2: Special scheduling is required for both the Great Red Spot and north pole, line_3: since longitudinal variations are critical and the targets must be observed line_4: near the central meridian. For a nominal execution date of April 28, 1993 line_5: (K. Noll, personal communication), Jupiter will be moving rapidly westward line_6: just after opposition. Select a western elongation of Io for target ACQ, to line_7: maximize the probability of requiring only one GS ACQ. ! question: 7 section: 1 line_1: Spectra will effectively cover the range from about 1700 to 2300A, the upper line_2: limit being determined by the FOS G190H and the lower by decreasing target line_3: flux. The spectra will be divided by a published solar ultraviolet spectrum line_4: to obtain an albedo curve. This curve will be compared to model atmospheres line_5: with various trace gas compositions, to determine the best fit. Numerous line_6: hydrocarbon candidates arise from infrared studies and theoretical work. An line_7: important part of the analysis will be to include the effects of vertical line_8: inhomogeneity. This is necessary because the UV continuum opacity, Rayleigh line_9: scattering, is a very strong function of wavelength. ! question: 8 section: 1 line_1: The longitude of the GRS is a slow function of time in System III coordinates. line_2: The drift rate is +0.279 deg/day in that system. On April 28, 1993, the GRS line_3: longitude will be 356 deg (Sys III). The GRS ephemeris was updated in early line_4: January, 1993, using data from mid December, 1992, by R. Beebe and L. Huber line_5: at NMSU. ! question: 10 section: 1 line_1: We are upgrading our SUN 4/280 to a 4/690, dedicated to HST data analysis. ! question: 13 section: 1 line_1: Observations of Jupiter will be made at moderate spatial resolution (1 arc sec) line_2: and spectral resolution (several A), at two distinctive places, the north pole line_4: and the Great Red Spot, plus comparison regions. The spectral range is from line_5: 1700 to 2300A. ! !end of general form text general_form_address: lname: CALDWELL fname: JOHN mi: J. title: DR. category: PI inst: YORK UNIVERSITY addr_1: PHYSICS DEPARTMENT addr_2: 4700 KEELE ST city: NORTH YORK state: ON zip: M3J 1P3 country: CANADA ! ! end of general_form_address records ! No fixed target records found solar_system_targets: targnum: 1 name_1: JUPITER descr_1: PLANET JUPITER lev1_1: STD = JUPITER wind_1: WND1 = 25-APR-93 TO 08-MAY-93 wind_2: CML OF JUPITER FROM EARTH BETWEEN 330 wind_3: 20 WITHIN WND1 comment_1: WINDOW CONSTRAINTS IN TARGNUMS comment_2: 1 AND 2 FORCE GREAT RED SPOT TO comment_3: BE OBSERVED NEAR CENTRAL MERIDIAN comment_4: LONG IN WINDOW IS 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 ! targnum: 2 name_1: JUPITER-GRS1 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = CARTO, LONG = 317.0, lev2_2: LAT = -20, R_LONG = 0.279, lev2_3: R_LAT = 0.0, EPOCH = 16-DEC-92:09:41:17 wind_1: WND1 = 25-APR-93 TO 08-MAY-93 wind_2: CML OF JUPITER FROM EARTH BETWEEN 330 wind_3: 20 WITHIN WND1 comment_1: LONGITUDES IN LEVEL 2 AND CML IN comment_2: WINDOW ARE IN SYSTEM III. WINDOW comment_3: DEFINES ALLOWABLE LONGITUDE RANGE comment_4: OF TARGET NEAR CM. LATITUDE AND comment_5: LONGITUDE ARE NOT TO BE ALTERED comment_6: LATITUDE IS ***PLANETOCENTRIC**** 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: JUPITER-GRS2 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE = CARTO, LONG = 77.0, lev2_2: LAT = -20, R_LONG = 0.279, lev2_3: R_LAT = 0.0, EPOCH = 16-DEC-92:09:41:17 comment_1: LONGITUDE IN LEVEL 2 IS SYSTEM III. comment_2: LATITUDE IS **PLANETOCENTRIC******* comment_3: LONGITUDE MAY BE ADJUSTED TO HELP comment_4: SCHEDULING. LATITUDE IS FIXED. 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-NP060 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER lev2_1: TYPE=CARTO, LONG = 060, LAT = +60 comment_1: LONGITUDE IN LEVEL 2 IS SYSTEM III. comment_2: LATITUDE IS **PLANETOCENTRIC******* comment_3: LONGITUDE MAY BE ADJUSTED TO HELP comment_4: SCHEDULING. LATITUDE IS FIXED. 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 160 wind_2: 200 comment_1: LONGITUDE IN LEVEL 2 AND CML IN comment_2: WINDOW IS IN SYSTEM III. WINDOW comment_3: DEFINES ALLOWABLE LONGITUDE RANGE comment_4: OF TARGET NEAR CM. LATITUDE AND comment_5: LONGITUDE ARE NOT TO BE ALTERED comment_6: LATITUDE IS ***PLANETOCENTRIC**** 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: IO descr_1: SATELLITE IO lev1_1: STD = JUPITER lev2_1: STD = IO wind_1: OLG OF IO BETWEEN 181 359 comment_1: PLEASE CHECK CONVENTION. WINDOW comment_2: SHOULD CONSTRAIN OBSERVATION TO comment_3: WESTERN ELONGATION FOR RT ACQ. comment_4: THIS SHOULD MAXIMIZE TIME ON GS comment_5: FOR JUPITER OBSERVATIONS. fluxnum_1: 1 fluxval_1: V=5.0, TYPE=G8V fluxnum_2: 2 fluxval_2: F(2200)=2E-14 fluxnum_3: 3 fluxval_3: F(2116)=1E-14 ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 6.000 targname: JUPITER-GRS1 config: WFC opmode: IMAGE aperture: ANY sp_element: F336W num_exp: 1 time_per_exp: 0.8S s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: GROUP 6.00 - 6.60 WITHIN 24H; req_2: CYCLE 2 / 6.00 - 8.4 comment_1: PLACE GRS WITHIN +/- 20 DEG OF comment_2: CML. GRS SYSTEM III LONGITUDE comment_3: APPROX 355 DEG ON APR 28, 1993. comment_4: EXECUTE +/- 10H OR +/- 20H FROM comment_5: JUPITER-GRS1 SPECTRA, THAT IS comment_6: +/- 1 OR 2 JUPITER ROTATIONS. ! linenum: 6.100 targname: JUPITER-GRS1 config: PC opmode: IMAGE aperture: ALL sp_element: F336W num_exp: 1 time_per_exp: 6S s_to_n: 20 fluxnum_1: 1 priority: 1 comment_1: SAME COMMENTS AS FOR 6.000 ! linenum: 6.120 targname: JUPITER-GRS1 config: PC opmode: IMAGE aperture: ALL sp_element: F413M num_exp: 1 time_per_exp: 1S s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: SEQ 6.0 - 6.12 NON-INT comment_1: SAME COMMENTS AS FOR 6.000 ! linenum: 6.200 targname: IO config: FOS/BL opmode: IMAGE aperture: 4.3 sp_element: G270H num_exp: 1 time_per_exp: 300S s_to_n: 20 fluxnum_1: 1 priority: 1 param_2: SUB-STEP=4 param_3: Y-SIZE=5 param_4: Y-SPACE=128 param_5: COMB=YES req_1: SEQ 6.2-8.4 NO GAP; req_2: RT ANALYSIS FOR 6.3-8.4; comment_1: IO SPECTRA FOR TARGET ACQ. RT comment_2: UPLINK NEEDED TO SET CORRECT Y- comment_3: DEFLECTION DETERMINED FROM IMAGE comment_4: SPECTRUM. IO ACQ AND SUBSEQUENT comment_5: JUP SPECTRA DONE IN 5 CONSECUTIVE comment_6: VISIB'TY PERIODS ON SAME GSS. ! linenum: 6.300 targname: IO config: FOS/BL opmode: IMAGE aperture: 4.3 sp_element: G270H num_exp: 1 time_per_exp: 4.0S s_to_n: 20 fluxnum_1: 1 priority: 1 param_1: STEP-TIME=1.0 param_2: SUB-STEP=1 param_3: Y-SIZE=4 param_4: Y-SPACE=64 param_5: COMB=NO comment_1: IMAGE OF APERTURE AFTER UPLINK TO comment_2: DETERMINE TRUE LOCATION OF IO IN comment_3: APERTURE. ! linenum: 6.500 targname: JUPITER-GRS1 config: FOS/BL opmode: ACCUM aperture: 1.0-PAIR-A sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 14M s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: AFTER 6.120 BY 10H +/- 0.5H; comment_1: THIS IS SPECTRUM OF GRS. comment_2: GRS MUST BE WITHIN +/- 20 DEGREES comment_3: OF CENTRAL MERIDIAN. SEE QUESTION comment_4: 8 OF GENERAL FORM. ! linenum: 6.600 targname: JUPITER-GRS1 config: FOS/BL opmode: ACCUM aperture: 1.0-PAIR-B sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 14M s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: SEQ 6.5,6.6 NON-INT; comment_1: OK TO TRIM EXP TIMES TO MEET comment_2: NON-INT CONSTRAINT FOR 6.5,6.6. comment_3: 6.5-6.6 FILL FIRST VIS PERIOD comment_4: AFTER RT ACQ. ! linenum: 7.700 targname: JUPITER-NP060 config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 15M s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: NON-INT comment_1: TARG MUST BE WITHIN +/- 20 DEG OF comment_2: CM. LONG IN TARG DEF IS FLEXIBLE, comment_3: BUT LAT(+60) IS FIXED. 7.7 FILLS comment_4: SECOND VISIB'TY PERIOD AFTER RT comment_5: ACQ. NO SPLIT BETWEEN ORBITS - comment_6: TRIM EXPOSURE TIME IF NECESSARY. ! linenum: 8.000 targname: JUPITER-GRS2 config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 7M s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: SEQ 8.0-8.2 NON-INT comment_1: TARG SHOULD BE WITHIN +/- 20 DEG comment_2: OF CM. 8-8.2 FILL THIRD VISIBILITY comment_3: PERIOD AFTER RT ACQ. TARG IS COMP- comment_4: ARISON/CALIBRATION FOR GRS OBSERV. comment_5: 6.5-6.6. OK TO TRIM EXP TIMES TO comment_6: MEET NON-INT REQ. ! linenum: 8.100 targname: JUPITER-GRS2 config: FOS/BL opmode: ACCUM aperture: 1.0-PAIR-A sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 7M s_to_n: 20 fluxnum_1: 1 priority: 1 comment_1: SAME COMMENTS AS FOR 8.0 comment_2: LONG IN TARG DEF'N IS ADJUST- comment_3: ABLE TO HELP SCHEUDLING, BUT comment_4: LATITUDE IS FIXED. ! linenum: 8.200 targname: JUPITER-GRS2 config: FOS/BL opmode: ACCUM aperture: 1.0-PAIR-B sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 7M s_to_n: 20 fluxnum_1: 1 priority: 1 comment_1: SAME COMMENTS AS FOR 8.0 ! linenum: 8.400 targname: JUPITER-NP180 config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 2 time_per_exp: 15M s_to_n: 20 fluxnum_1: 1 priority: 1 req_1: NON-INT comment_1: TARGET MUST BE WITHIN +/- 20 comment_2: DEG OF CM. DO NOT SPLIT comment_3: EXPOSURE BETWEEN ORBITS. comment_4: SEE QUESTION 8, GENERAL FORM. comment_5: 8.4 FILLS 4TH VISIB'TY PERIOD comment_6: AFTER RT ACQ. ! ! end of exposure logsheet ! No scan data records found