! File: 1127C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:02:46:43 coverpage: title_1: JOVIAN RING - SOLAR SYSTEM (WF/PC-23): title_2: CYCLE 3 AND FUTURE-CYCLE CONTINUATION 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 RING SYSTEM, JUPITER INNER SATELLITES hours_pri: 0.30 num_pri: 1 pi_position: PROFESSOR OF PLANETA ! end of coverpage abstract: line_1: The newly discovered ring of Jupiter has only 3 or 4 data sets to describe the line_2: nature and characteristics of the very tenuous ring. The best data set were line_3: obtained by the Voyager spacecraft. HST will give much higher spatial line_4: resolution of the ring in a back scattering lighting condition at very low line_5: phase angles. These high signal-to-noise data will allow much better radius line_6: and albedo limits to be set. The observations would require Jupiter to be line_7: situated on one CCD and allow the ring, which is some six magnitudes fainter, line_8: to be imaged on an adjacent chip. These data would allow detection of the line_9: inner moons of Jupiter, including Adrastea which is located on the edge of the line_10: bright ring component of the Jovian ring system. The long time base since line_11: first discovery by Voyager would allow a very accurate determination of the line_12: orbital period. Spectral coverage will give some additional information on line_13: albedo and surface composition. ! ! 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: 3 section: 1 line_1: These data will be acquired through the methane filter F889N to suppress the line_2: light from Jupiter. The planet Jupiter should be placed on an adjacent CCD and line_3: the ring system and inner satellites on the desginated CCD. The exposures line_4: should be taken in 3 hour intervals so that the entire ring system area is line_5: photographed and the inner satellites recovered. line_7: Complete set to be obtained in cycle 9. line_9: comment continuation from CP11: Special Requirements: Special pointing required line_10: to place ring system on one CCD w/o Jupiter; planetary tracking required; line_11: specific time intervals between exposures are required. ! question: 5 section: 1 line_1: The planet Jupiter should be placed on the adjacent CCD and the ring system line_2: and inner satellites on the desginated CCD. The exposures should be taken in 3 line_3: hour intervals so that the entire ring system area is photgraphed and the inner line_4: satellites recovered. ! question: 13 section: 1 line_1: The newly discovered ring of Jupiter has only 3 or 4 dat sets to describe the line_2: nature and characteristics of the very tenuous ring. The best data set were line_3: obtained by the Voyager spacecraft. HST will give much higher spatial line_4: resolution of the ring in a back scattering lighting condition at very low line_5: phase angles. These high signal-to-noise data will allow much better radius and line_6: albedo limits to be set. The observations would require Jupiter to be situated line_7: on one CCD and allow the ring, which is some six magnitudes fainter, to be line_8: imaged on an adjacent chip. These data would allow detection of the inner moons line_9: of Jupiter, including Adrastea which is located on the edge of the bright ring line_10: component of the Jovian ring system. The long time base since first discovery line_11: by Voyager would allow a very accurate determination of the orbital period. line_12: Spectral coverage will give some additional information on albedo and surface line_13: composition. ! !end of general form text general_form_address: lname: GUNN fname: JAMES mi: E. category: ADV inst: PRINCETON UNIVERSITY addr_1: ASTROPHYSICAL SCIENCE addr_2: PEYTON HALL city: PRINCETON state: NJ zip: 08540 country: USA phone: (609) 452-3802 ! lname: BAUM fname: WILLIAM category: ADV inst: LOWELL OBSERVATORY addr_1: PLANETARY RESEARCH CENTER addr_2: P.O BOX 1269 city: FLAGSTAFF state: AZ zip: 86002 country: USA phone: (602) 774-3358 ! 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) 356-6861 ! 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 ! No fixed target records found solar_system_targets: targnum: 1 name_1: JUPITER-RING descr_1: RING JUPITER lev1_1: STD=JUPITER lev2_1: STD=ADRASTEA comment_1: ADRASTEA IS JUST OUTSIDE comment_2: THE BRIGHT COMPONENT OF comment_3: JUPITER RING ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 1.000 targname: JUPITER-RING config: PC opmode: IMAGE aperture: PC6 sp_element: F889N num_exp: 1 time_per_exp: 60S priority: 2 param_1: CR-SPLIT=NO, param_2: PRE-FLASH=YES req_1: CYCLE 3 / 1-4; req_2: PCS MODE C / 1-4; comment_1: CYCLE 9 VERSION comment_2: JEG/RML 3/25/92 17:00. ! linenum: 2.000 targname: ^ config: ^ opmode: ^ aperture: PC6 sp_element: ^ num_exp: ^ time_per_exp: ^ priority: ^ param_1: CR-SPLIT=NO, param_2: PRE-FLASH=YES req_1: AFTER 1 BY 180M +/- 10M; ! linenum: 3.000 targname: ^ config: ^ opmode: ^ aperture: PC6 sp_element: ^ num_exp: ^ time_per_exp: ^ priority: ^ param_1: CR-SPLIT=NO, param_2: PRE-FLASH=YES req_1: AFTER 2 BY 180M +/- 10M; ! linenum: 4.000 targname: ^ config: ^ opmode: ^ aperture: PC6 sp_element: ^ num_exp: ^ time_per_exp: ^ priority: ^ param_1: CR-SPLIT=NO, param_2: PRE-FLASH=YES req_1: AFTER 3 BY 180M +/- 10M; req_2: SEQ 1-4; ! ! end of exposure logsheet ! No scan data records found