! File: 1290C.PROP ! Database: PEPDB ! Date: 16-FEB-1994:10:39:21 coverpage: title_1: URANUS AND NEPTUNE BELOW 3000 A sci_cat: SOLAR SYSTEM sci_subcat: GIANT PLANETS proposal_for: GTO/OS pi_fname: JOHN pi_mi: J. pi_lname: CALDWELL pi_inst: YORK UNIVERSITY pi_country: CANADA pi_phone: (416)665-5449 keywords_1: URANUS, NEPTUNE, ATMOSPHERIC CHEMISTRY hours_pri: 5.21 num_pri: 2 pi_position: PROFESSOR ! end of coverpage abstract: line_1: Uranus and Neptune will be observed with the FOS gratings line_2: G270H and G190H to provide spectra from 330 nm down to line_3: 180 nm, the lower limit being determined by the noise in line_4: the background scattered light within the FOS. Target line_5: acquisition will be accomplished through on-board ACQs of line_6: planetary satellites. The center of each planet will be line_7: targeted. Two apertures will be used, the 1.0 to get line_8: maximum throughput with reasonable spectral resolution, and line_9: the 0.25x2.0 to achieve better spectral resolution. The line_10: latter will achieve poor S/N at the shorter wavelength end line_11: of the G190H. Scientific objectives include C2H2 abundance line_12: and vertical distribution in both planets, aerosol line_13: properties, Raman scattering and trace molecular species. ! ! end of abstract general_form_proposers: lname: CALDWELL fname: JOHN title: DR. mi: J. inst: YORK UNIVERSITY country: CANADA ! lname: TRAFTON fname: LAURENCE title: DR. mi: M. inst: UTEXAS country: USA ! ! end of general_form_proposers block general_form_text: question: 3 section: 0 line_1: For each planet, a satellite will be acquired with blind line_2: pointng and an ACQ/FIRMWARE. An offset will be made to the line_3: planet center. FOS spectra will be taken of both Uranus line_4: and Neptune, with the G190H and G270H. Two apertures will line_5: be used, the 1.0 for maximum throughput and the 0.25x2.0 line_6: improved spectral resolution. After the spectra, and ACQ line_7: image will be taken to record the position of the FOS line_8: apertures on the planetary disks. ! question: 4 section: 0 line_1: HST observations are required for access to the UV. ! question: 5 section: 0 line_1: IUE spectra provide an excellent basis for calculating line_2: exposure time. ! question: 6 section: 0 line_1: There are no special scheduling requests. ! question: 7 section: 0 line_1: Planetary spectra will be divided by a published solar UV line_2: rocket spectrum, to convert flux to albedos. Albedos will line_3: be compared to atmospheric models which include absorption line_4: by gases such as C2H2, for which abundances and vertical line_5: distributions will be inferred. Comparison with comparable line_6: quantities derived from IR spectra will be important for line_7: verifying atmospheric structure models. The influence of line_8: Raman scattering on reflected Fraunhofer features and of line_9: aerosol scattering on continuum reflectivity will be line_10: investigated. ! !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 STREET 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: URANUS descr_1: PLANET URANUS lev1_1: STD = URANUS fluxnum_1: 1 fluxval_1: V=5.5 fluxnum_2: 2 fluxval_2: F(1800)=8E-15 fluxnum_3: 3 fluxval_3: F(2200)=2E-13 ! targnum: 2 name_1: NEPTUNE descr_1: PLANET NEPTUNE lev1_1: STD = NEPTUNE fluxnum_1: 1 fluxval_1: V=7.8 fluxnum_2: 2 fluxval_2: F(1800)=1.3E-15 ! targnum: 3 name_1: TRITON descr_1: SATELLITE TRITON lev1_1: STD = NEPTUNE lev2_1: STD = TRITON fluxnum_1: 1 fluxval_1: V = 13.6 ! targnum: 4 name_1: TITANIA descr_1: SATELLITE TITANIA lev1_1: STD = URANUS lev2_1: STD = TITANIA wind_1: SEP OF OBERON TITANIA FROM wind_2: EARTH GT 10", wind_3: SEP OF UMBRIEL TITANIA FROM wind_4: EARTH GT 10", wind_5: SEP OF ARIEL TITANIA FROM wind_6: EARTH GT 10" fluxnum_1: 1 fluxval_1: V = 14.0 ! targnum: 5 name_1: OBERON descr_1: SATELLITE OBERON lev1_1: STD = URANUS lev2_1: STD = OBERON wind_1: SEP OF OBERON TITANIA FROM wind_2: EARTH GT 10" fluxnum_1: 1 fluxval_1: V = 14.2 ! ! end of solar system targets ! No generic target records found exposure_logsheet: linenum: 1.000 targname: OBERON config: FOS/BL opmode: ACQ/FIRMWARE aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 19.29S fluxnum_1: 1 priority: 1 param_1: MAP=COARSE, req_1: GUID TOL 0.1"; CYCLE 1 / 1-4.4; req_2: ONBOARD ACQ FOR 2-4; req_3: SELECT 1 OF 1-4 OR 4.1-4.4; comment_1: USE EITHER OBERON OR TITANIA TO comment_2: ACQUIRE URANUS, WHICHEVER IS comment_3: MORE CONVENIENT. ! linenum: 2.000 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 1H s_to_n: 15 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1"; comment_1: S/N CALCULATED AT 1800A. ! linenum: 2.500 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 0.3 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 30M s_to_n: 33 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1"; comment_1: S/N CALCULATED AT 2200A. ! linenum: 3.000 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G270H wavelength: 2700 num_exp: 1 time_per_exp: 5M s_to_n: 200 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1" ! linenum: 3.500 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 0.3 sp_element: G270H wavelength: 2700 num_exp: 1 time_per_exp: 5M s_to_n: 100 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1" ! linenum: 4.000 targname: URANUS config: FOS/BL opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 3.84S fluxnum_1: 1 priority: 1 ! linenum: 4.100 targname: TITANIA config: FOS/BL opmode: ACQ/FIRMWARE aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 16.04S fluxnum_1: 1 priority: 1 param_1: MAP=COARSE, req_1: GUID TOL 0.1"; req_2: ONBOARD ACQ FOR 4.2-4.4; ! linenum: 4.200 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 1H s_to_n: 15 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1"; ! linenum: 4.250 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 0.3 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 30M s_to_n: 33 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1"; ! linenum: 4.300 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G270H wavelength: 2700 num_exp: 1 time_per_exp: 5M s_to_n: 200 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1" ! linenum: 4.350 targname: URANUS config: FOS/BL opmode: ACCUM aperture: 0.3 sp_element: G270H wavelength: 2700 num_exp: 1 time_per_exp: 5M s_to_n: 100 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1" ! linenum: 4.400 targname: URANUS config: FOS/BL opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 3.84S fluxnum_1: 1 priority: 1 ! linenum: 5.000 targname: TRITON config: FOS/BL opmode: ACQ/FIRMWARE aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 11.10S fluxnum_1: 1 priority: 1 param_1: MAP=COARSE, req_1: GUID TOL 0.1"; CYCLE 1 / 5-8; req_2: ONBOARD ACQ FOR 6-8; ! linenum: 6.000 targname: NEPTUNE config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 4H s_to_n: 15 fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.1" ! linenum: 6.500 targname: NEPTUNE config: FOS/BL opmode: ACCUM aperture: 0.3 sp_element: G190H wavelength: 1900 num_exp: 1 time_per_exp: 1H s_to_n: 23 fluxnum_1: 1 priority: 1 req_1: GUID TOL 0.1" ! linenum: 7.000 targname: NEPTUNE config: FOS/BL opmode: ACCUM aperture: 1.0 sp_element: G270H wavelength: 2700 num_exp: 1 time_per_exp: 20M s_to_n: 200 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1" ! linenum: 7.500 targname: NEPTUNE config: FOS/BL opmode: ACCUM aperture: 0.3 sp_element: G270H wavelength: 2700 num_exp: 1 time_per_exp: 20M s_to_n: 100 fluxnum_1: 2 priority: 1 req_1: GUID TOL 0.1" ! linenum: 8.000 targname: NEPTUNE config: FOS/BL opmode: ACQ aperture: 4.3 sp_element: MIRROR num_exp: 1 time_per_exp: 3.84S fluxnum_1: 1 priority: 1 ! ! end of exposure logsheet ! No scan data records found