! $Id: 850,v 4.1 1994/07/26 23:33:26 pepsa Exp $ coverpage: title_1: SATURN WHITE SPOT - TARGET OF OPPORTUNITY - CM/TEST sci_cat: SOLAR SYSTEM proposal_for: CM/TEST pi_title: MR. pi_fname: JAMES pi_lname: HARE pi_inst: SPACE TELESCOPE SCIENCE INSTITUTE pi_country: USA pi_phone: (301)338-4447 keywords_1: SATURN, ATMOSPHERE DYNAMICS hours_pri: 7.04 num_pri: 1 pi_position: PROFESSOR OF PLANETA ! end of coverpage abstract: line_1: This program will obtain two-color exposure sets line_2: to measure atmospheric motion in the recently discovered new White Spot. line_3: The first set should be obtained when the feature is near the Central Meridian line_4: Followed about twenty hours 28 minutes later (2 Saturn revs) by the 2nd set. line_5: At about 61 hours 24 minutes (6 revs from the first set) the final line_6: set should be taken. Each set consists of three orbits of 8 exposures each. ! ! end of abstract general_form_proposers: lname: HARE fname: JAMES title: MR. inst: SPACE TELESCOPE SCIENCE INSTITUTE country: USA ! ! end of general_form_proposers block general_form_text: question: 2 section: 1 line_1: ! question: 3 section: 1 line_1: The proposed observations consist of four 5 sec exposures in F439W line_2: followed by four F889N 40 sec exposures all in the PC. Four exposures are line_3: required to increase the S/N ratio to an acceptable level based on our recent line_4: experience with deconvolving the SAT images. This same sequence should be line_5: repeated 20 hours 28m +/- 30m later when the spot is again near the central line_6: meridian, followed by a third set 61 hours 24m +/- 30m after the first line_7: observation. ! question: 13 section: 1 line_1: We would like to conduct a "Target of Opportunity" observation of line_2: the newly formed "White Spot" on Saturn. This spot was identified about line_3: 26 September 1990 and has evolved into the biggest and brightest spot since line_4: at least 1933. Only a few ground-based observations have been possible from the line_5: Northern hemisphere because Saturn is only about 90 degrees from the sun and line_6: is at a declination of -22 degrees. line_7: Purpose of Observations line_8: Despite its generally banded appearance, few discrete spots (clouds) line_9: have been seen in Saturn's atmosphere. In this century, only about a dozen such line_10: features were prominent enough to yield reliable rotation rates and latitudes. line_11: The Hubble Space Telescope with the Planetary Camera can line_12: image this spot at different wavelengths, including the atmospheric methane line_13: absorption band near 890nm (F889N). This wavelength was not available on line_14: Voyager. We also propose to use F439W in the blue where the available line_15: ground-based CCD images show the highest contrast. These two image sets sample line_16: the cloud structure at different altitudes where important questions concerning line_17: the distribution of winds with height can be addressed directly for the first line_18: time. If small scale features exist line_19: in the spot, we will determine whether the spot is rotating cyclonically or line_20: anticyclonically, and we will measure the vorticity at various locations. The line_21: chance to measure the zonal (east-west) velocity more than eight years after line_22: the Voyager encounter will reveal whether the winds are changing or not. ! !end of general form text general_form_address: lname: HARE fname: JIM title: MR. category: PI inst: SPACE TELESCOPE SCIENCE INSTITUTE addr_1: JOHNS HOPKINS UNIVERSITY addr_2: HOMEWOOD CAMPUS city: BALTIMORE state: MD zip: 21218 country: USA ! lname: BAUM fname: WILLIAM category: CON inst: LOWELL OBSERVATORY addr_1: PLANETARY RESEARCH CENTER addr_2: 1400 WEST MARS HILL ROAD city: FLAGSTAFF state: AZ zip: 86002 country: USA phone: (602) 774-3358 ! lname: BEEBE fname: RITA category: CON inst: NEW MEXICO STATE addr_1: ASTRONOMY DEPT. city: LAS CRUCES state: NM zip: 88003 country: USA phone: 505-646-1938 ! 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: INGERSOL fname: ANDREW 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) 356-6167 ! ! end of general_form_address records fixed_targets: targnum: 1 name_1: SATURN1 descr_1: WHITE SPOT pos_1: RA= 19H 28M 18.54S +/-1S, pos_2: DEC= -21D 58' 15.2" +/-10" equinox: 2000 ! targnum: 2 name_1: SATURN2 descr_1: WHITE SPOT pos_1: RA= 19H 28M 19.72S +/-1S, pos_2: DEC= -21D 58' 13.0" +/-10" equinox: 2000 ! targnum: 4 name_1: SATURN4 descr_1: WHITE SPOT pos_1: RA= 19H 28M 33.68S +/-1S, pos_2: DEC= -21D 57' 46.9" +/-10" equinox: 2000 ! targnum: 5 name_1: SATURN5 descr_1: WHITE SPOT pos_1: RA= 19H 28M 34.88S +/-1S, pos_2: DEC= -21D 57' 44.7" +/-10" equinox: 2000 ! targnum: 7 name_1: SATURN7 descr_1: WHITE SPOT pos_1: RA= 19H 29M 4.69S +/-1S, pos_2: DEC= -21D 56' 48.5" +/-10" equinox: 2000 ! targnum: 8 name_1: SATURN8 descr_1: WHITE SPOT pos_1: RA= 19H 29M 5.93S +/-1S, pos_2: DEC= -21D 56' 46.1" +/-10" equinox: 2000 ! ! end of fixed targets ! No solar system records found ! No generic target records found exposure_logsheet: linenum: 1.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: GUIDE TOL 0.022" / 1-64; req_2: SEQ 1-64 comment_1: INVERSE RANGE FOR PARALLAX CORRECTION comment_2: IN SMS 309 IS 6.424545724 E-13 comment_3: 1/METERS comment_5: COARSE LOCK - ALTHOUGH GYROS WILL comment_6: ACCEPTABLE IF COURSE LOCK FAILS. ! linenum: 2.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO ! linenum: 3.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO ! linenum: 4.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO ! linenum: 5.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO ! linenum: 6.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO ! linenum: 7.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO ! linenum: 8.000 targname: SATURN1 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO comment_1: END OF VISIT 1,ORBIT 1 ! linenum: 9.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO comment_5: BEGINNING OF VISIT 1, ORBIT 2 ! linenum: 10.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO ! linenum: 11.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO ! linenum: 12.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO ! linenum: 13.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO ! linenum: 14.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO ! linenum: 15.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO ! linenum: 16.000 targname: SATURN2 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO comment_1: END OF VISIT 1, ORBIT 2 ! linenum: 25.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H comment_5: BEGINING OF VISIT 2, ORBIT 1 ! linenum: 26.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 27.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 28.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 29.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 30.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 31.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 32.000 targname: SATURN4 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H comment_1: END OF VISIT 2, ORBIT 1 ! linenum: 33.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H comment_5: BEGINNING OF VISIT 2, ORBIT 2 ! linenum: 34.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 35.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 36.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 37.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 38.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 39.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H ! linenum: 40.000 targname: SATURN5 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 20.5H +/- 7H comment_1: END OF VISIT 2, ORBIT 2 ! linenum: 49.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H comment_5: BEGINNING OF VISIT 3, ORBIT 1 ! linenum: 50.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 51.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 52.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 53.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 54.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 55.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 56.000 targname: SATURN7 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H comment_1: END OF VISIT 3, ORBIT 1 ! linenum: 57.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H comment_5: BEGINNING OF VISIT 3, ORBIT 2 ! linenum: 58.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 59.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 60.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F439W num_exp: 1 time_per_exp: 4S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 61.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 62.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 63.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H ! linenum: 64.000 targname: SATURN8 config: PC opmode: IMAGE aperture: P6 sp_element: F889N num_exp: 1 time_per_exp: 40S priority: 1 param_1: PRE-FLASH=NO req_1: AFTER 1 BY 61.5H +/- 7H comment_1: END OF VISIT 3, ORBIT 2 ! ! end of exposure logsheet ! No scan data records found