PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2007-07-31 NOTE = " E-mail and other messages concerning MGS Radio Science on or about 2005/042." END_OBJECT = TEXT END From Walter.J.Glance@jpl.nasa.gov Fri Feb 11 11:06:21 2005 Return-Path: Received: from eis-msg-012.jpl.nasa.gov (eis-msg-012.jpl.nasa.gov [137.78.160.40]) by magellan.stanford.edu (8.11.7p1+Sun/8.11.7) with ESMTP id j1BJ6J710835 for ; Fri, 11 Feb 2005 11:06:19 -0800 (PST) Received: from [68.35.82.55] (vpn-149-246-067.jpl.nasa.gov [128.149.246.67]) by eis-msg-012.jpl.nasa.gov (8.12.10/8.12.10) with ESMTP id j1BIwhx6017034; Fri, 11 Feb 2005 10:58:45 -0800 (PST) Mime-Version: 1.0 X-Sender: jglance@pop.jpl.nasa.gov Message-Id: Date: Fri, 11 Feb 2005 11:00:17 -0800 To: aseel.anabtawi@jpl.nasa.gov, kcbender@asu.edu, Phil.Christensen@asu.edu, homan@east.la.asu.edu, jensen@msss.com, jester@osb1.wff.nasa.gov, monte.kaelberer@gsfc.nasa.gov, pat@lepmom.gsfc.nasa.gov, malin@msss.com, mehall@asu.edu, kim.murray@asu.edu, rsimpson@magellan.stanford.edu, dsmith@ltpsun.gsfc.nasa.gov, kds@msss.com, zuber@tharsis.gsfc.nasa.gov From: Jesse Glance Subject: MGS to return to solar array 10 deg offset config. Content-Type: text/plain; charset="us-ascii" ; format="flowed" Content-Length: 1056 Status: RO FYI. Due to MGS' momentum management challenges, apparently a result of changing the Solar Array offset angle from 10 deg to 35 deg (to reduce excess electrical power production), the project has just decided to return MGS to the solar array 10 deg offset configuration. SCT reports that available telemetry indicates four "desats" occurred on DOY-041, the first being an "off-axis desat" at 0500 SCET. Other momentum wheel angular desaturations include spin-axis desats. The reason for desats occurring on multiple axes may be due to MGS' reliance on its skew-axis reaction wheel, which compensates for the failed X-axis wheel, but has angular momentum in multiple axes. Commands to return MGS to a solar array 10-deg offset config. (including MOLA Replacement Heater turn-On to aid with shedding excess power produced in the 10 deg offset config.) are planned for uplink today. (Special thanks to Peggy Jester for supporting the short-notice command conference which required approval for the MOLA RHTR config. change.) v/r --Jesse -------------------------------------------------------------------------- Return-Path: Received: from popserver2.Stanford.EDU ([unix socket]) by popserver2.Stanford.EDU (Cyrus v2.2.10) with LMTPA; Fri, 18 Feb 2005 10:31:02 -0800 X-Sieve: CMU Sieve 2.2 Received: from leland3.Stanford.EDU (leland3.Stanford.EDU [171.67.16.108]) by popserver2.Stanford.EDU (8.12.11/8.12.11) with ESMTP id j1IIV2G0017247 for ; Fri, 18 Feb 2005 10:31:02 -0800 (PST) Received: from airmail.fltops.jpl.nasa.gov (airmail2.fltops.jpl.nasa.gov [137.228.96.27]) by leland3.Stanford.EDU (8.12.11/8.12.11) with ESMTP id j1IIV1qZ021867; Fri, 18 Feb 2005 10:31:01 -0800 Received: from rsops2.fltops.jpl.nasa.gov (rsops2.fltops.jpl.nasa.gov [137.228.136.22]) by airmail.fltops.jpl.nasa.gov (Postfix) with ESMTP id 26BD110944; Fri, 18 Feb 2005 10:33:37 -0800 (PST) Received: from rsops2.fltops.jpl.nasa.gov (localhost [127.0.0.1]) by rsops2.fltops.jpl.nasa.gov (8.12.10+Sun/8.12.8) with ESMTP id j1IIV1X0005619; Fri, 18 Feb 2005 18:31:01 GMT Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.12.10+Sun/8.12.8/Submit) id j1IIV1tG005618; Fri, 18 Feb 2005 18:31:01 GMT Date: Fri, 18 Feb 2005 18:31:01 GMT From: aseel anabtawi Message-Id: <200502181831.j1IIV1tG005618@rsops2.fltops.jpl.nasa.gov> Content-Type: text To: undisclosed-recipients:; DSS: 43 RSR: RSR1B Subchannel: 1 Orbit Number: 26495 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/041-20:35:00 End Record: 2005/041-20:45:00 DSS: 43 RSR: RSR1B Subchannel: 1 Orbit Number: 26496 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/041-22:33:00 End Record: 2005/041-22:43:00 DSS: 43 RSR: RSR1B Subchannel: 1 Orbit Number: 26497 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-00:30:00 End Record: 2005/042-00:40:00 DSS: 43 RSR: RSR1B Subchannel: 1 Orbit Number: 26498 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-02:28:00 End Record: 2005/042-02:38:00 DSS: 43 RSR: RSR1B Subchannel: 1 Orbit Number: 26499 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-04:26:00 End Record: 2005/042-04:36:00 -------------------------------------------------------------------------- Return-Path: Received: from popserver2.Stanford.EDU ([unix socket]) by popserver2.Stanford.EDU (Cyrus v2.2.10) with LMTPA; Fri, 18 Feb 2005 11:08:03 -0800 X-Sieve: CMU Sieve 2.2 Received: from leland3.Stanford.EDU (leland3.Stanford.EDU [171.67.16.108]) by popserver2.Stanford.EDU (8.12.11/8.12.11) with ESMTP id j1IJ8345001186 for ; Fri, 18 Feb 2005 11:08:03 -0800 (PST) Received: from airmail.fltops.jpl.nasa.gov (airmail2.fltops.jpl.nasa.gov [137.228.96.27]) by leland3.Stanford.EDU (8.12.11/8.12.11) with ESMTP id j1IJ82mZ003918; Fri, 18 Feb 2005 11:08:02 -0800 Received: from rsops2.fltops.jpl.nasa.gov (rsops2.fltops.jpl.nasa.gov [137.228.136.22]) by airmail.fltops.jpl.nasa.gov (Postfix) with ESMTP id C005210944; Fri, 18 Feb 2005 11:10:37 -0800 (PST) Received: from rsops2.fltops.jpl.nasa.gov (localhost [127.0.0.1]) by rsops2.fltops.jpl.nasa.gov (8.12.10+Sun/8.12.8) with ESMTP id j1IJ81X0005783; Fri, 18 Feb 2005 19:08:01 GMT Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.12.10+Sun/8.12.8/Submit) id j1IJ81WK005782; Fri, 18 Feb 2005 19:08:01 GMT Date: Fri, 18 Feb 2005 19:08:01 GMT From: aseel anabtawi Message-Id: <200502181908.j1IJ81WK005782@rsops2.fltops.jpl.nasa.gov> Content-Type: text To: undisclosed-recipients:; DSS: 55 RSR: RSR1A Subchannel: 1 Orbit Number: 26500 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-06:24:00 End Record: 2005/042-06:34:00 DSS: 55 RSR: RSR1A Subchannel: 1 Orbit Number: 26501 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-08:21:00 End Record: 2005/042-08:31:00 DSS: 55 RSR: RSR1A Subchannel: 1 Orbit Number: 26502 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-10:19:00 End Record: 2005/042-10:29:00 DSS: 55 RSR: RSR1A Subchannel: 1 Orbit Number: 26503 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-12:17:00 End Record: 2005/042-12:27:00 -------------------------------------------------------------------------- Return-Path: Received: from popserver2.Stanford.EDU ([unix socket]) by popserver2.Stanford.EDU (Cyrus v2.2.10) with LMTPA; Fri, 18 Feb 2005 11:09:08 -0800 X-Sieve: CMU Sieve 2.2 Received: from leland4.Stanford.EDU (leland4.Stanford.EDU [171.67.12.80]) by popserver2.Stanford.EDU (8.12.11/8.12.11) with ESMTP id j1IJ98cp001603 for ; Fri, 18 Feb 2005 11:09:08 -0800 (PST) Received: from airmail.fltops.jpl.nasa.gov (airmail2.fltops.jpl.nasa.gov [137.228.96.27]) by leland4.Stanford.EDU (8.12.11/8.12.11) with ESMTP id j1IJ95n5001601; Fri, 18 Feb 2005 11:09:05 -0800 Received: from rsops2.fltops.jpl.nasa.gov (rsops2.fltops.jpl.nasa.gov [137.228.136.22]) by airmail.fltops.jpl.nasa.gov (Postfix) with ESMTP id 15B5E10946; Fri, 18 Feb 2005 11:11:41 -0800 (PST) Received: from rsops2.fltops.jpl.nasa.gov (localhost [127.0.0.1]) by rsops2.fltops.jpl.nasa.gov (8.12.10+Sun/8.12.8) with ESMTP id j1IJ94X0005870; Fri, 18 Feb 2005 19:09:04 GMT Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.12.10+Sun/8.12.8/Submit) id j1IJ91UG005863; Fri, 18 Feb 2005 19:09:01 GMT Date: Fri, 18 Feb 2005 19:09:01 GMT From: aseel anabtawi Message-Id: <200502181909.j1IJ91UG005863@rsops2.fltops.jpl.nasa.gov> Content-Type: text To: undisclosed-recipients:; DSS: 26 RSR: RSR1A Subchannel: 1 Orbit Number: 26504 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-14:15:00 End Record: 2005/042-14:25:00 DSS: 26 RSR: RSR1A Subchannel: 1 Orbit Number: 26505 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-16:12:00 End Record: 2005/042-16:22:00 DSS: 26 RSR: RSR1A Subchannel: 1 Orbit Number: 26506 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-18:10:00 End Record: 2005/042-18:20:00 DSS: 26 RSR: RSR1A Subchannel: 1 Orbit Number: 26507 Occultation Sense: i SOE: mm413a.04.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2005/042-20:08:00 End Record: 2005/042-20:18:00