! File: 4253C.PROP ! Database: PEPDB ! Date: 20-FEB-1994:19:08:43 coverpage: title_1: FAR UV OBSERVATIONS OF THE GIANT PLANETS sci_cat: SOLAR SYSTEM sci_subcat: GIANT PLANETS proposal_for: GTO/FOC cont_id: 1269 pi_fname: FRANCESCO pi_lname: PARESCE pi_inst: ESA, SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA pi_phone: (301) 338-4823 keywords_1: FAR ULTRAVIOLET, GIANT PLANETS, AURORAE hours_pri: 17.50 num_pri: 104 time_crit: X ! end of coverpage abstract: line_1: H and H2 are the main constituents of the upper atmospheres of the giant line_2: planets and Titan, H is abundant in their exospheres and magnetospheres and N2, line_3: produced by photolysis of NH3, dominates the lower atmosphere of Titan. The line_4: spatial distribution of these elements is determined by the photochemical and line_5: particle dissociation processes responsible for their production and by the line_6: transport mechanisms responsible for their distribution. The presence of these line_7: planetary constituents is revealed by emissions of the HI, 1216 A Lyman alpha line_8: line, the H2 Lyman and Werner, and the N2 Lyman-Birge-Hopfield bands in the line_9: 1000-2000A region, all produced by particle impact excitation and/or resonance line_10: scattering of sunlight. Spatial and spectral images of the H, H2 and N2 line_11: atmospheres around these objects, consequently, represent key diagnostic tools line_12: in the investigation of these fundamental planetary phenomena. Moreover, Lyman line_13: alpha images of the giant planets taken at high enough spatial resolution will line_14: permit a determination of the abundance of deuterium, an extremely sensitive line_15: tracer of primordial nucleosynthesis. We propose to obtain a series of high line_16: resolution images of the giant planets' upper atmospheres and near-planetary line_17: environments in the far uv that are unobtainable from the ground or from the line_18: present generation of planetary probes. ! ! end of abstract general_form_proposers: lname: GERARD fname: JEAN CLAUDE inst: LIEGE, UNIVERSITY OF country: BELGIUM esa: X ! lname: VIDAL-MADJAR fname: ALFRED inst: INSTITUTE OF ASTROPHYSICS, PARIS country: FRANCE esa: X ! lname: PARESCE fname: FRANCESCO inst: ESA, SPACE TELESCOPE SCIENCE INSTITUTE country: USA esa: X ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: ! question: 13 section: 1 line_1: We propose to obtain a series of high resolution images of the giant planets' line_2: upper atmospheres and near-planetary environments in the far uv that are line_3: unobtainable from the ground or from the present generation of planetary line_4: probes. Spatial and spectral images of the H, H2 and N2 atmospheres around line_5: these objects represent key diagnostic tools in the investigation of these line_6: fundamental planetary phenomena. Lyman Alpha images of the giant planets taken line_7: at high enough spatial resolution will permit a determination of the abundance line_8: of deuterium, an extremely sensitive tracer of primordial nucleosynthesis. ! !end of general form text general_form_address: lname: PARESCE fname: FRANCESCO category: PI inst: ESA, SPACE TELESCOPE SCIENCE INSTITUTE addr_1: HOMEWOOD CAMPUS city: BALTIMORE state: MD zip: 21218 country: USA ! ! end of general_form_address records ! No fixed target records found solar_system_targets: targnum: 1 name_1: JUPITER-NORTH1 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER, lev2_1: TYPE = CARTO, LONG = 30, lev2_2: LAT = 70, RAD = 1.204E5 wind_1: CML OF JUPITER FROM EARTH wind_2: BETWEEN 10 50 comment_1: POSITION IS 30" FROM DESIRED. comment_2: SIP WILL BE CALCULATED ONCE comment_3: OBSERVATION IS ON SMS. ! targnum: 2 name_1: JUPITER-NORTH2 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER, lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 15.7, lev2_3: ANG = 24.6, lev2_4: REF = NORTH wind_1: CML OF JUPITER FROM EARTH wind_2: BETWEEN 70 110 comment_1: THIS (AND ALL FURTHER) POSITION comment_2: IS THE DESIRED POSITION. ! targnum: 3 name_1: JUPITER-NORTH3 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER, lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 15.7, lev2_3: ANG = 24.6, lev2_4: REF = NORTH wind_1: CML OF JUPITER FROM EARTH wind_2: BETWEEN 130 170 ! targnum: 4 name_1: JUPITER-NORTH4 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER, lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 15.7, lev2_3: ANG = 24.6, lev2_4: REF = NORTH wind_1: CML OF JUPITER FROM EARTH wind_2: BETWEEN 190 230 ! targnum: 5 name_1: JUPITER-NORTH5 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER, lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 15.7, lev2_3: ANG = 24.6, lev2_4: REF = NORTH wind_1: CML OF JUPITER FROM EARTH wind_2: BETWEEN 250 290 ! targnum: 6 name_1: JUPITER-NORTH6 descr_1: FEATURE JUPITER lev1_1: STD = JUPITER, lev2_1: TYPE = POS_ANGLE, lev2_2: RAD = 15.7, lev2_3: ANG = 24.6, lev2_4: REF = NORTH wind_1: CML OF JUPITER FROM EARTH wind_2: BETWEEN 310 350 ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 0.500 targname: JUPITER-NORTH1 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 300S priority: 1 param_1: PIXEL=50X25 req_1: CYCLE 2/0.5-6; req_2: SEQ 0.5-6 NO GAP; req_3: INT ACQ FOR 1; req_4: PCS MODE C / 0.5-6 comment_1: TEST EXPOSURE TO CHECK THAT comment_2: FOC FILTERS ARE IN PLACE. comment_3: SHOULD GO IN ORBIT PRECEDING 1. comment_4: SIP OFFSET WILL BE NECESSARY. ! linenum: 1.000 targname: JUPITER-NORTH1 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 1200S priority: 1 param_1: PIXEL=50X25 ! linenum: 2.000 targname: JUPITER-NORTH2 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 1200S priority: 1 param_1: PIXEL=50X25 req_1: REQ UPLINK /2-6 ! linenum: 3.000 targname: JUPITER-NORTH3 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 1200S priority: 1 param_1: PIXEL=50X25 ! linenum: 4.000 targname: JUPITER-NORTH4 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 1200S priority: 1 param_1: PIXEL=50X25 ! linenum: 5.000 targname: JUPITER-NORTH5 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 1200S priority: 1 param_1: PIXEL=50X25 ! linenum: 6.000 targname: JUPITER-NORTH6 config: FOC/96 opmode: IMAGE aperture: 512X1024 sp_element: F152M,F175W num_exp: 1 time_per_exp: 1200S priority: 1 param_1: PIXEL=50X25 ! ! end of exposure logsheet ! No scan data records found