Return-path: Received: from lasp.colorado.edu ([128.138.137.141]) by pisces.colorado.edu (PMDF V5.2-31 #40069) with ESMTP id <01JNTR5QXGUG9BVELC@pisces.colorado.edu> for simmons@pisces.colorado.edu (ORCPT rfc822;simmons@pisces.colorado.edu); Tue, 4 Apr 2000 05:11:32 GMT Received: from gull.prod.itd.earthlink.net (gull.prod.itd.earthlink.net [207.217.121.85]) by lasp.colorado.edu (8.9.3+Sun/8.9.1) with ESMTP id XAA09061; Mon, 03 Apr 2000 23:12:35 -0600 (MDT) Received: from [209.245.42.238] (dialup-209.245.42.238.SanDiego1.Level3.net [209.245.42.238]) by gull.prod.itd.earthlink.net (8.9.3/8.9.3) with ESMTP id WAA04107; Mon, 03 Apr 2000 22:12:39 -0700 (PDT) Date: Mon, 03 Apr 2000 22:12:11 -0700 From: "W.Kent.Tobiska" Subject: G28 EUV science objectives In-reply-to: <3.0.32.20000329121309.00b0a87c@pop.jpl.nasa.gov> X-Sender: ktobiska@pop.jpl.nasa.gov (Unverified) To: Kathryn Schimmels Cc: kent.tobiska@jpl.nasa.gov, "Ian A.F. Stewart" , Wayne Pryor , Amanda Hendrix , simmons@lasp.colorado.edu Message-id: MIME-version: 1.0 Content-type: text/plain; charset="us-ascii" Original-recipient: rfc822;simmons@pisces.colorado.edu In orbit G28, the EUV concentrates upon Io torus science. This observation will be the most complete (ansa to ansa) spatial and feature (two ansae, torus profiles, and Jupiter aurora) data set since early in the prime mission. The EUV Io torus observation continues the morphological study of the Io torus and provide the basis for a long term comparison between prime mission and GMM datasets over 4 years as well as asymmetries between dawn (prime mission) and dusk (GMM) torus ansae. Jupiter aurora and sky background data will also be obtained by the EUV to recapture two of the UVS science objectives in G28, i.e., the characterization of the derived solar wind during the period of the Cassini encounter with Jupiter. The UVS instrument is turned off pending resolution of the grating encoder mechanism anomaly. ************************** 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 http://www.spacenvironment.net **************************