! File: 1126C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:02:44:30 coverpage: title_1: JUPITER - SOLAR SYSTEM (WF/PC-22) sci_cat: SOLAR SYSTEM proposal_for: GTO/WFC pi_title: PROF. pi_fname: JAMES pi_mi: A. pi_lname: WESTPHAL pi_inst: CALTECH pi_country: USA pi_phone: (818) 356-4900 keywords_1: JUPITER, ATMOSPHERE DYNAMICS hours_pri: 2.61 num_pri: 1 pi_position: PROFESSOR OF PLANETA ! end of coverpage abstract: line_1: This program will obtain two four-color complete 360 degree maps with the WF/PC line_2: to measure the Jovian atmospheric motion. The first set will be obtained line_3: within a ten-hour period to allow for adequate overlap between the longitudinal line_4: strips. Then twenty hours later a second map set will be obtained to complete line_5: the dynamical set. Since Jupiter rotates approximately fifty degrees per HST line_6: orbit, these dynamical sets should be obtained for eight sequential orbits. UV line_7: imaging at the high spatial resolution of HST provides an excellent method of line_8: studying the upwelling processes, especially in the time domain. ! ! end of abstract general_form_proposers: lname: WESTPHAL fname: JAMES mi: A. inst: CALTECH country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: The dynamics of the Jovian atmosphere will yield new scientific insight into line_2: two main areas: 1) the energy balance in the convective envelope and line_3: atmosphere, and 2) the mechanism for maintaining large scale systems in the line_4: atmosphere. The Voyager spacecraft obtained high resolution views of this line_5: turbulent atmosphere. The dynamical set obtained with the WF/PC will allow a line_6: direct comparison of the wind fields and evolutionary properties of cloud line_7: systems with the Voyager data sets obtained 6 months apart in 1979. The line_8: observing sequence will consist of a four-color longitude map obtained within a line_9: ten-hour period. Then twenty hours later a second map set should be obtained line_10: to complete the dynamical set. Since Jupiter rotates approximately 50 degrees line_11: per HST orbit, this dynamical set should be obtained for seven sequential line_12: orbits. This will provide a multicolor map with complete longitude coverage. line_13: The filters have been chosen to optimize the contrast of the atmospheric line_14: features from ground-based and Voyager data analysis (F336M, F439M, F718M, and line_15: F889N). The two full rotation data sets would contain image pairs separated in line_16: time by 30 hours with similar central meridians. Hence, velocity errors and line_17: limb-darkening and various foreshortening effects will be minimized. line_19: The exploration in the near- and vacuum-UV will produce new data at a spatial line_20: resolution never obtained in this spectral region. From the preliminary line_21: information gathered by the instruments on the Pioneer and Voyager spacecrafts, line_22: it appears that the Jovian atmosphere is strongly convective in localized line_23: regions. At least one well known atmospheric constituent, ammonia, condenses ! question: 2 section: 2 line_1: during the upwelling process, as evident in the Jovian images that show white line_2: reflective regions near shear zone edges in the south tropical zones and in the line_3: white ovals. Limited spectral data from IUE show some evidence for gaseous line_4: absorption by ammonia, indicating that the gas must be out of local line_5: thermodynamic equilibrium, probably as a result of the rapid upwelling process. line_6: Moderate bandwidth UV imaging at high spatial resolution of HST covering the line_7: regions of known absorption bands and nearby continuum (170 - 210 nm) provides line_8: an excellent method of studying the upwelling processes, especially in the time line_9: domain. ! question: 3 section: 1 line_1: Since Jupiter rotates approximaely 50 degrees per HST orbit, this dynamical set line_2: should be obtained for seven sequential orbits. This will provide a multicolor line_3: map with complete longitude coverage. The filters have been chosen to optimize line_4: the contrast of the atmospheric features from ground-based and Voyager data line_5: sets would contain image pairs separated in time by 30 hours with similar line_6: central meridians. Hence, velocity errors and limb-darkening and various line_7: foreshortening effects will be minimized. line_9: Complete sets to be obtained in Cycles 1 and 2. line_11: comment continuation from CP11: sequential orbits required, planetary tracking line_12: required. ! question: 13 section: 1 line_1: Imaging observations of the Jovian atmosphere in four filters (F336M, F439M, line_2: F718M, and F889N) will yield new scientific insight into two main areas: 1) line_3: the energy balance in the convective envelope and atmosphere, and 2) the line_4: mechanism for maintaining large scale systems in the atmosphere. This will line_5: provide a multicolor map with complete longitude coverage. The filters have line_6: been chosen to optimize the contrast of the atmospheric features from line_7: ground-based and Voyager data analysis. ! !end of general form text general_form_address: lname: GUNN fname: JAMES mi: E. category: CON inst: PRINCETON UNIVERSITY addr_1: ASTROPHYSICAL SCIENCE addr_2: PEYTON HALL city: PRINCETON state: NJ zip: 08540 country: USA ! lname: FABER fname: SANDRA mi: M. category: CON inst: UC SANTA CRUZ - LICK OBSERVATORY addr_1: NATURAL SCIENCE II, BLDG. 160 city: SANTA CRUZ state: CA zip: 95064 country: USA ! lname: DANIELSON fname: G. EDWARD category: CON inst: CALTECH addr_1: M/S 170-25 addr_2: DIVISION OF GEOLOGICAL & PLANETARY SCIENCES city: PASADENA state: CA zip: 91125 country: USA phone: (818) 356-4900 ! lname: WESTPHAL fname: JAMES mi: A. title: PROF. category: PI inst: CALTECH addr_1: M/S 170-25 addr_2: DIVISION OF GEOLOGICAL addr_3: & PLANETARY SCIENCES city: PASADENA state: CA zip: 91125 country: USA phone: (818) 356-4900 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: JUPITER-1 descr_1: PLANET pos_1: RA=08H26M23.58S +/-0.01S, pos_2: DEC=+20D00'24.46" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 2 name_1: JUPITER-2 descr_1: PLANET pos_1: RA=08H26M22.74S +/-0.01S, pos_2: DEC=+20D00'27.32" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 3 name_1: JUPITER-3 descr_1: PLANET pos_1: RA=08H26M21.89S +/-0.01S, pos_2: DEC=+20D00'30.17" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 4 name_1: JUPITER-4 descr_1: PLANET pos_1: RA=08H26M21.05S +/-0.01S, pos_2: DEC=+20D00'33.01" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 5 name_1: JUPITER-5 descr_1: PLANET pos_1: RA=08H26M20.21S +/-0.01S, pos_2: DEC=+20D00'35.84" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 6 name_1: JUPITER-6 descr_1: PLANET pos_1: RA=08H26M19.37S +/-0.01S, pos_2: DEC=+20D00'38.65" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 7 name_1: JUPITER-7 descr_1: PLANET pos_1: RA=08H26M04.45S +/-0.01S, pos_2: DEC=+20D01'28.53" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 8 name_1: JUPITER-8 descr_1: PLANET pos_1: RA=08H26M02.91S +/-0.01S, pos_2: DEC=+20D01'33.64" +/-0.01" equinox: 2000 pm_or_par: NO ! targnum: 9 name_1: JUPITER-9 descr_1: PLANET pos_1: RA=08H26M01.39S +/-0.01S, pos_2: DEC=+20D01'38.70" +/-0.01" equinox: 2000 pm_or_par: NO ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 sequence_1: DEFINE sequence_2: CLM targname: # config: PC opmode: IMAGE aperture: ALL sp_element: F439W num_exp: 1 time_per_exp: 0.6S priority: # param_1: PRE-FLASH=NO,CR-SPLIT=NO req_1: GROUP 1-4 NO GAP; req_2: POS TARG 0,0 / 1-4; comment_1: ONLY CYCLE 0 ACTIVE comment_2: 11/18/90 JAW/RML ! linenum: 1.500 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F547M num_exp: ^ time_per_exp: 0.26S priority: ^ param_1: ^ ! linenum: 2.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F718M num_exp: ^ time_per_exp: 0.3S priority: ^ param_1: ^ ! linenum: 3.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F889N num_exp: ^ time_per_exp: 10S priority: ^ param_1: ^ ! linenum: 4.000 sequence_1: ^ targname: ^ config: ^ opmode: ^ aperture: ^ sp_element: F336W num_exp: ^ time_per_exp: 16S priority: ^ param_1: ^ ! linenum: 5.000 sequence_1: USE sequence_2: CLM targname: JUPITER-1 priority: 1 req_1: CYCLE 0 / 5.0-6.2; comment_1: AT 29-JAN-1991 +/- 60D comment_2: REPEAT EXPOSURES EVERY ORBIT (97 comment_3: MIN STANDS FOR ONE ORBIT) ! linenum: 5.100 sequence_1: USE sequence_2: CLM targname: JUPITER-2 priority: 1 comment_1: AFTER 5.00 BY 97M +/- 5M ! linenum: 5.200 sequence_1: USE sequence_2: CLM targname: JUPITER-3 priority: 1 comment_1: AFTER 5.10 BY 97M +/- 5M ! linenum: 5.300 sequence_1: USE sequence_2: CLM targname: JUPITER-4 priority: 1 comment_1: AFTER 5.20 BY 97M +/- 5M ! linenum: 5.400 sequence_1: USE sequence_2: CLM targname: JUPITER-5 priority: 1 comment_1: AFTER 5.30 BY 97M +/- 5M ! linenum: 5.500 sequence_1: USE sequence_2: CLM targname: JUPITER-6 priority: 1 comment_1: AFTER 5.40 BY 97M +/- 5M ! linenum: 6.000 sequence_1: USE sequence_2: CLM targname: JUPITER-7 priority: 1 comment_1: AFTER 5 BY 30H +/- 6H; comment_2: REPEAT EXPOSURES EVERY OTHER ORBIT comment_3: (97 MIN FOR ONE ORBIT). ! linenum: 6.100 sequence_1: USE sequence_2: CLM targname: JUPITER-8 priority: 1 comment_1: AFTER 6.0 BY 194M +/- 5M; ! linenum: 6.200 sequence_1: USE sequence_2: CLM targname: JUPITER-9 priority: 1 comment_1: AFTER 6.10 BY 194M +/- 5M; ! ! end of exposure logsheet ! No scan data records found