! File: 5079C.PROP ! Database: PEPDB ! Date: 23-FEB-1994:19:31:08 coverpage: title_1: DYNAMICS OF PLANETARY UPPER ATMOSPHERES - CYC3HIGH sci_cat: SOLAR SYSTEM proposal_for: GTO/HSP cont_id: 4257 pi_fname: ROBERT pi_mi: C. pi_lname: BLESS pi_inst: WISCONSIN, UNIVERSITY OF pi_country: USA pi_phone: 608-262-1715 keywords_1: PLANETARY ATMOSPHERES, JOVIAN PLANETS, MARS, UPPER keywords_2: OCCULTATIONS, TEMPERATURE PROFILES hours_pri: 1.00 num_pri: 1 hsp: Y realtime: N time_crit: N ! end of coverpage abstract: line_1: Observations of planetary upper atmospheres through line_2: stellar occultations are of interest because they line_3: provide information about the radiative and line_4: dynamical processes at work in these rarefied line_5: regions (number density range: 10super13 - 10super15 line_6: cmsuper-3), which could be otherwise measured only line_7: through direct atmospheric probe launched from a line_8: spacecraft. One of the problems with interpretation line_9: of the temperature profiles obtained from line_10: ground-based occultation observations has been that line_11: the numerical inversion of the data is highly line_12: sensitive to photometric errors--especially in line_13: obtaining the mean temperature of the atmosphere. line_14: This photometry will allow us to analyze data from line_15: the occultation of U111 by Uranus on 14 April 1993. ! ! end of abstract general_form_proposers: lname: ROBINSON fname: EDWARD mi: L. inst: TEXAS, UNIVERSITY OF country: USA ! lname: BLESS fname: ROBERT mi: C. inst: WISCONSIN, UNIVERSITY OF country: USA ! lname: VAN CITTERS fname: G. mi: W. inst: NATIONAL SCIENCE FOUNDATION country: USA ! lname: DOLAN fname: JOSEPH mi: F. inst: NASA, GODDARD SPACE FLIGHT CENTER country: USA ! lname: WHITE fname: RICHARD mi: L. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! lname: ELLIOT fname: JAMES mi: L. inst: MASSACHUSETTS INSTITUTE OF TECHNOLOGY country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 1 line_1: In order to reduce data previously obtained line_2: (occultation of U111 by Uranus on 14 April 1993) line_3: we need a time series on the occulted star in the line_4: two filters used for the occultation observations line_5: (F750W and F320N). We are requesting a full line_6: orbit's worth of data in order to characterize the line_7: VIS tube's photometric stability, as that is line_8: important to the analysis of the Uranus occultation line_9: data, and this tube is not calibrated sufficiently line_10: for this analysis in HSP calibration proposals. line_11: Coarsetrack is acceptable if necessary. ! question: 4 section: 1 line_1: We need to measure the flux from the previously line_2: occulted star in exactly the bandpasses which were line_3: used during the occultation. This is not possible line_4: from the ground due to atmospheric absorption. ! question: 7 section: 1 line_1: Data will be reduced and analyzed at MIT with the line_2: DEC 5000 belonging to the planetary astronomy line_3: group. ! question: 10 section: 1 line_1: Data reduction and analysis will be supported on line_2: computer facilities at MIT. ! question: 13 section: 1 line_1: Observations of the upper atmospheres of Mars and line_2: the Jovian planets with HSP through stellar line_3: occultations will provide infromation about the line_4: radiative and dynamical processes in this region. line_5: The temperature profiles obtained will allow testing line_6: of the various transfer models for each planet. ! !end of general form text general_form_address: lname: BLESS fname: ROBERT mi: C. category: PI inst: UNIVERSITY OF WISCONSIN addr_1: DEPARTMENT OF ASTRONOMY city: MADISON state: WI zip: 53706 country: USA ! lname: ELLIOT fname: JAMES mi: L. category: CON inst: MASSACHUSETTS INSTITUTE OF TECHNOLOGY addr_1: BLDG. 54-422 city: CAMBRIDGE state: MA zip: 02139 country: USA phone: 617-253-6308 telex: 921473 MIT CAM ! ! end of general_form_address records fixed_targets: targnum: 17 name_1: U111 name_2: GSC6311-00105 descr_1: STAR OCCULTED BY URANUS. pos_1: PLATE-ID = 01O4, pos_2: RA = 19H 36M 18.944S +/- 0.03", pos_3: DEC = -22D 02' 54.42" +/- 0.04", equinox: J2000 acqpr_1: BKG fluxnum_1: 1 fluxval_1: V = 12.6 +/- 0.5 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 4.000 sequence_1: DEFINE sequence_2: ONBRD-ACQ targname: # config: HSP/VIS opmode: ACQ num_exp: 1 time_per_exp: 1S fluxnum_1: 1 priority: 1 ! linenum: 7.000 sequence_1: DEFINE sequence_2: OCC-PHOT targname: # config: HSP/PMT/VIS opmode: SPLIT aperture: 1.0 sp_element: F750W/F320N num_exp: 1 time_per_exp: 1M fluxnum_1: 1 priority: 1 param_1: # ! linenum: 7.500 sequence_1: DEFINE sequence_2: OCC-PHOT targname: ^ config: S/C opmode: DATA aperture: NONE num_exp: 1 time_per_exp: 0S priority: 1 param_1: FORMAT=FN, req_1: PAR WITH 7.0; comment_1: CAPTURE FGS TLM DURING PHOTOMETRY. ! linenum: 40.090 sequence_1: USE sequence_2: ONBRD-ACQ targname: U111 time_per_exp: X20 req_1: ONBOARD ACQ FOR 40.10; req_2: SEQ 40.09 - 40.10 NO GAP; req_3: PCS MODE F / 40.09 - 40.10; req_4: CYCLE 3 / 40.09 - 40.10 ! linenum: 40.100 sequence_1: USE sequence_2: OCC-PHOT targname: U111 time_per_exp: X40 param_1: SAMPLE-TIME = 0.1, param_2: DATA-FORMAT = ALL, param_3: PMT-ANALOG = 10000, param_4: VIS-ANALOG = 1000, comment_1: SCHEDULE AS CLOSE TO RE-RUN OF 4257 comment_2: (DUE TO HOPR) AS POSSIBLE. comment_3: PREFERABLY WITHIN 3 HOURS. ! ! end of exposure logsheet ! No scan data records found