From: IN%"kent.tobiska@jpl.nasa.gov" "W. Kent Tobiska" 12-MAR-1999 16:00:44.47 To: IN%"kschimme@mail1.jpl.nasa.gov", IN%"hendrix@pisces.colorado.edu" "Amanda Hendrix", IN%"Robert.A.West@jpl.nasa.gov" "Bob West", IN%"barth@pisces.colorado.edu" "Charles Barth", IN%"stewart@pisces.colorado.edu" "Ian A.F. Stewart", IN%"adams@lasp.col CC: IN%"kent.tobiska@jpl.nasa.gov" Subj: UVS C20 OP Science Presentation Return-path: Received: from eis-msg-014.jpl.nasa.gov by pisces.colorado.edu (PMDF V4.2-13 #26137) id <01J8QYGNXKTS8WW45V@pisces.colorado.edu>; Fri, 12 Mar 1999 16:00:19 GMT Received: from [137.78.240.45] (karakh.jpl.nasa.gov [137.78.240.45]) by eis-msg-014.jpl.nasa.gov (8.8.5/8.8.5) with ESMTP id IAA22248; Fri, 12 Mar 1999 08:01:37 -0800 (PST) Date: Fri, 12 Mar 1999 08:05:22 -0800 From: "W. Kent Tobiska" Subject: UVS C20 OP Science Presentation To: kschimme@mail1.jpl.nasa.gov, Amanda Hendrix , Bob West , Charles Barth , "Ian A.F. Stewart" , Jim Adams , Joe Ajello , Karen Simmons , Lisa Crowell , Arthur Lane , Pat Schriver , Scott Zipke , Wayne Pryor , Wendy Sweet Cc: kent.tobiska@jpl.nasa.gov Message-id: MIME-version: 1.0 Content-type: text/plain; charset="iso-8859-1" Content-transfer-encoding: quoted-printable X-Sender: ktobiska@pop.jpl.nasa.gov 20EUECLPSE01 Ride-along with the NIMS 20ENECLPSE01 observation to observe Europa at phase angles not obtainable from the Earth. MUV data will supplement and complement the NIMS surface property measurements. 20CUCATMOS01 Ride-along with the NIMS 20CNCATMOS01 observation to observe Callisto tenuous atmosphere in a bright limb drift. MUV data will complement the NIMS atmosphere measurements. 20CUFEATRE01,02,03 Ride-along with the NIMS 20CNFEATRE01 observation to observe features on Callisto at phase angles not obtainable from the Earth. MUV data will supplement and complement the NIMS surface property measurements. 20CUBRANCR01 Ride-along with the NIMS 20CNBRANCR01 observation to observe Callisto's Bran crater at 204 deg longitude at phase angles not obtainable from the Earth. MUV data will supplement and complement the NIMS surface property measurements. 20CUGLOBAL01 Ride-along with the NIMS 20CNGLOBAL01 observation to observe Callisto at phase angles not obtainable from the Earth. MUV data will supplement and complement the NIMS surface property measurements. 20JUWAVTRK03,13,23 AWG feature track with SSI to look at equatorial waves in the MUV. 20JUJETTRK01,11 AWG feature track with SSI to look at high speed jets in the MUV. 20JUNEBTRK03,13,23 AWG feature track with SSI to look at north equatorial belt in the MUV. 20JUSEBTRK03,13,23 AWG feature track with SSI to look at south equatorial belt in the MUV. 20JUWOVTRK03,13 AWG feature track with SSI to look at white ovals in the MUV. 20JUDARKSD01,02 Observe equatorial Lyman-alpha on Jupiter's darkside to determine long-term changes as a function of System III longitude from charged particle impact upon thermospheric hydrogen. Without the effect of sunlight, H emission variations result from magnetospheric plasma interaction and dynamical mixing from lower layers. 20JUBRITSD02,03,04,05,06,07,08,09,10,12,14,15,16 Observe brightside hydrocarbon emissions to develop a statistically significant acetylene and ammonia spectrum at four latitudes. This study will help understand minor species chemistry related to dynamics in Jupiter's stratosphere/upper troposphere. Low photon count rates require substantial integration time. This is a realtime observation for 6.13 hours during the feature track window using either a G/G 176 step miniscan covering 1496-1755 =C5 or a G/G full scan at a distance from Jupiter beyond 15 Rj. 4 observation latitudes are north high and mid lat, south mid and high lat. The lighting and view geometry is designed so that 1/mu + 1/mu_0 =3D 3.88. 20JUAURORA01 Jupiter aurora observations of Lyman-alpha and H2 emissions near the 80 (S) longitude. We are stuyding the long-term magnetosphere and Jovian upper atmosphere interaction. This is a realtime observation for 1.5 hours using N/G full-scans that will be the first NUV observations of the Jovian aurora. 20JUAURORA02 Jupiter aurora observations of Lyman-alpha and H2 emissions near the 180 (N) longitude. We are stuyding the long-term magnetosphere and Jovian upper atmosphere interaction. This is a realtime observation for 7 RIMs using Ly-a 88-step mini-scans and is also being recorded as a ridealong with SSI aurora image. 20TV20NANS01, 20TU20NANS01 EUV/UVS map of Io torus noon ansa during the C20 outbound to determine morphological changes in torus over the timescale of several years. EUV emission lines: S++ 685, S+ 765, O+ 834; UVS emission lines:H 1215, S+ 1259, S+ 4070. 20HU_STARCAL Star cross calibration between UVS and EUV on Lyman-alpha sky background and star calibration on Sirius at RA/Dec =3D 100.73/-16.659, type A061, mag -1.6. This is a realtime observation using F/N and F/G full scans at a distance from Jupiter =3D 25.4 Rj. The Sirius Ly-a flux (UARS data from Tom Woods) =3D 20 ph cm-2 s-1 A-1. ************************** W. Kent Tobiska FDC/JPL, MS 264-580 4800 Oak Grove Dr. Pasadena, CA 91109 (818) 393-7742 (phone) (818) 393-4530 (fax) kent.tobiska@jpl.nasa.gov **************************