PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2007-07-29 NOTE = " E-mail and other messages concerning MGS Radio Science on or about 1999/111." END_OBJECT = TEXT END From trish@godzilla.jpl.nasa.gov Tue Apr 20 11:31:30 1999 Received: from godzilla.jpl.nasa.gov (godzilla.jpl.nasa.gov [137.78.177.120]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id LAA00118 for ; Tue, 20 Apr 1999 11:31:26 -0700 (PDT) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.9.3/8.9.3) with ESMTP id LAA20142; Tue, 20 Apr 1999 11:30:08 -0700 (PDT) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.9.3/8.9.3) with SMTP id LAA25320; Tue, 20 Apr 1999 11:30:52 -0700 (PDT) Message-Id: <199904201830.LAA25320@rodan.jpl.nasa.gov> Date: 20 Apr 99 11:34:52 -0700 From: Trish Priest Subject: Testing Tomorrow To: Len Tyler CC: Sami Asmar , David Hinson , Richard Simpson , Bill Sjogren , Joe Twicken X-Mailer: QuickMail Pro 1.5.4 (Mac) X-Priority: 3 Reply-To: Trish Priest MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="US-Ascii" Content-Length: 474 Status: RO Hello, Len, The telemetry from the HGA anomaly did not tell the spacecraft team much. Nothing indicated what happend or why. Today they are preparing sequences to test the HGA gimbal. They will move the gimbal 0.5 degrees in each direction and look at the telemetry. They are also looking into a way to get the HGA Earth-pointed for more than just a few orbits in order to improve communication rate. The test sequence should run sometime tomorrow morning. -Trish -------------------------------------------------------------------------- From trish@godzilla.jpl.nasa.gov Tue Apr 20 16:24:19 1999 Received: from godzilla.jpl.nasa.gov (godzilla.jpl.nasa.gov [137.78.177.120]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id QAA07979 for ; Tue, 20 Apr 1999 16:24:18 -0700 (PDT) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.9.3/8.9.3) with ESMTP id QAA22016; Tue, 20 Apr 1999 16:23:22 -0700 (PDT) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.9.3/8.9.3) with SMTP id QAA25762; Tue, 20 Apr 1999 16:24:13 -0700 (PDT) Message-Id: <199904202324.QAA25762@rodan.jpl.nasa.gov> Date: 20 Apr 99 16:28:12 -0700 From: Trish Priest Subject: SPC 40 data and other items To: Richard Simpson , Joe Twicken X-Mailer: QuickMail Pro 1.5.4 (Mac) X-Priority: 3 Reply-To: Trish Priest MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="US-Ascii" Content-Length: 340 Status: R Hello, Dick and Joe, The e-mail that you just received regarding DSS 45 shows 3 measurements all on the LGA. There will not be any other measurements until the DSS 34 pass tomorrow morning. SPC 60 did not put the DSP in the link. There isn't a Goldstone pass. Also, 110-02:43:00 was lost due to a SPAR initialization failure. -Trish -------------------------------------------------------------------------- From ppriest@airmail.fltops.jpl.nasa.gov Wed Apr 21 16:19:47 1999 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.Stanford.EDU (8.8.5/8.8.3) with SMTP id QAA20378; Wed, 21 Apr 1999 16:19:47 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id QAA10962; Wed, 21 Apr 1999 16:19:48 -0700 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma010398; Wed, 21 Apr 99 16:18:47 -0700 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.1b+Sun/8.9.1) with ESMTP id QAA16133; Wed, 21 Apr 1999 16:18:47 -0700 (PDT) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id XAA10361; Wed, 21 Apr 1999 23:18:46 GMT Date: Wed, 21 Apr 1999 23:18:46 GMT From: Patricia Priest 264-859 Message-Id: <199904212318.XAA10361@mmrs.fltops.jpl.nasa.gov> DSS: 34 Content-Type: text Apparently-To: Apparently-To: Content-Length: 668 Status: R Orbit: 533e SOE: mz002c.00.tsoe Begin Record: 111/14:02:00 End Record: 111/14:12:00 Last Attenuation Change: 33 SNT: Elevation Angle: Orbit: 533i SOE: mz002c.00.tsoe Begin Record: 111/15:18:00 End Record: 111/15:27:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 534e SOE: mz002c.00.tsoe Begin Record: 111/16:02:54 End Record: 111/17:04:49 Last Attenuation Change: SNT: Elevation Angle: Orbit: 534i SOE: mz002c.00.tsoe Begin Record: 111/17:16:00 End Record: 111/17:24:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 535e SOE: mz002c.00.tsoe Begin Record: 111/17:57:00 End Record: 111/18:07:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From trish@godzilla.jpl.nasa.gov Wed Apr 21 16:46:12 1999 Received: from godzilla.jpl.nasa.gov (godzilla.jpl.nasa.gov [137.78.177.120]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id QAA20426 for ; Wed, 21 Apr 1999 16:46:07 -0700 (PDT) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.9.3/8.9.3) with ESMTP id QAA05211; Wed, 21 Apr 1999 16:44:22 -0700 (PDT) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.9.3/8.9.3) with SMTP id QAA27740; Wed, 21 Apr 1999 16:45:11 -0700 (PDT) Message-Id: <199904212345.QAA27740@rodan.jpl.nasa.gov> Date: 21 Apr 99 16:49:13 -0700 From: Trish Priest Subject: Information To: David Hinson , Richard Simpson , Joe Twicken , Len Tyler X-Mailer: QuickMail Pro 1.5.4 (Mac) X-Priority: 3 Reply-To: Trish Priest MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset="US-Ascii" Content-Length: 764 Status: R Hello, The test this morning showed that the gimbal will move in the positive direction, but movement in the negative direction is blocked. The data are consistent with what one would expect from an obstruction. Other tests are being planned. You should have information for the DSS 34 pass this morning. Sorry that it didn't go out sooner. There is currently a DSS 65 pass, and there is a DSS 25 pass later tonight. We should expect data from both passes (unless DSS 25 doesn't put the DSP in the link). A new sequence is currently on the spacecraft (mz003a.01.tsoe). This allows for about 5 hours with the HGA Earth-pointed followed by about 2 hours 30 minutes of off-Earth point (to update celestial reference). This cycle keeps repeating. -Trish -------------------------------------------------------------------------- From ppriest@airmail.fltops.jpl.nasa.gov Wed Apr 21 21:22:26 1999 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.Stanford.EDU (8.8.5/8.8.3) with SMTP id VAA21158; Wed, 21 Apr 1999 21:22:25 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id VAA14218; Wed, 21 Apr 1999 21:22:25 -0700 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma013998; Wed, 21 Apr 99 21:22:09 -0700 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.1b+Sun/8.9.1) with ESMTP id VAA21197; Wed, 21 Apr 1999 21:22:09 -0700 (PDT) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id EAA11410; Thu, 22 Apr 1999 04:22:08 GMT Date: Thu, 22 Apr 1999 04:22:08 GMT From: Patricia Priest 264-859 Message-Id: <199904220422.EAA11410@mmrs.fltops.jpl.nasa.gov> DSS: 65 Content-Type: text Apparently-To: Apparently-To: Content-Length: 544 Status: RO Orbit: 537i SOE: mz002c.00.tsoe Begin Record: 111/23:09:00 End Record: 111/23:17:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 538e SOE: mz002c.00.tsoe Begin Record: 111/23:51:00 End Record: 111/23:58:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 538i SOE: mz002c.00.tsoe Begin Record: 112/01:08:00 End Record: 112/01:14:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 539e SOE: mz002c.00.tsoe Begin Record: 112/01:49:00 End Record: 112/01:56:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From bwaggone@mail1.jpl.nasa.gov Thu Apr 22 06:13:47 1999 Received: from eis-msg-014.jpl.nasa.gov (eis-msg-014.jpl.nasa.gov [137.78.160.189]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id GAA21438 for ; Thu, 22 Apr 1999 06:13:45 -0700 (PDT) Received: from waggoner-pc (waggoner-pc.jpl.nasa.gov [137.78.144.108]) by eis-msg-014.jpl.nasa.gov (8.8.5/8.8.5) with SMTP id GAA22441; Thu, 22 Apr 1999 06:13:46 -0700 (PDT) Message-Id: <3.0.3.32.19990422060659.00982bd0@pop.jpl.nasa.gov> X-Sender: bwaggone@pop.jpl.nasa.gov X-Mailer: QUALCOMM Windows Eudora Pro Version 3.0.3 (32) Date: Thu, 22 Apr 1999 06:06:59 -0700 To: malin@msss.com, boblin@sunspot.ssl.berkeley.edu, len@nova.Stanford.EDU, dsmith@tharsis.gsfc.nasa.gov, mha@lepmom.gsfc.nasa.gov, phil@elex.la.asu.edu, Arden.Albee@jpl.nasa.gov, carr@astmnl.wr.usgs.gov, eeliason@flagmail.wr.usgs.gov, haberle@humbabe.arc.nasa.gov, api@helene.gps.caltech.edu, jakosky@argyre.colorado.edu, jester@OSB1.WFF.NASA.GOV, mehall@esther.la.asu.edu, mpowell@momag.gsfc.nasa.gov, rsimpson@magellan.Stanford.EDU, lsoderbl@flagmail.wr.usgs.gov, jensen@msss.com, , warren@msss.com, Bruce.Banerdt@jpl.nasa.gov, John.L.Callas@jpl.nasa.gov, jglance@mail1.jpl.nasa.gov, priest@jpl.nasa.gov, , , winterhalter@jpl.nasa.gov, barroyo@mgsw3.jpl.nasa.gov, bwaggone@mail1.jpl.nasa.gov, Steven.S.Wissler@jpl.nasa.gov, Judith.A.Morris@jpl.nasa.gov, Wayne.J.Lee@jpl.nasa.gov, Nora.Mainland@jpl.nasa.gov, Ricardo.G.Torres@jpl.nasa.gov, Linda.M.Lee@jpl.nasa.gov, Philip.C.Knocke@jpl.nasa.gov, Reid.C.Thomas@jpl.nasa.gov, Karen.E.Yetter@jpl.nasa.gov, Joseph.G.Neelon@jpl.nasa.gov From: Bruce Waggoner Subject: Latest MGS HGA Information Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by magellan.Stanford.EDU id GAA21438 Content-Length: 5816 Status: RO >Date: Wed, 21 Apr 1999 18:00:39 -0600 >From: "Spath, Stuart R" >Subject: Latest MGS HGA Information >To: "Waggoner, Bruce C (X-JPL.NASA.GOV)" , > "Beerer, Joseph G (X-JPL.NASA.GOV)" , > "'Thomas, Reid'" , > "Thurman, Sam W (X-JPL.NASA.GOV)" , > "Gillies, Ladd M" , > "Timbrook, John P" , > "Herzl, Al" , > "Gasparrini, Tim D" , > "Kretsch, Warren E" , > "Cook, Richard A (X-JPL.NASA.GOV)" , > "Cunningham, Glenn E (X-JPL.NASA.GOV)" , > "'Brower, Gene'" , > "McAnally, Claude W" , > "Starnes, Kenny R" , > "Neuman, James C" , > "'Glance, Jesse'" , > "'rchiei@hst.nasa.gov'" , > "Adams, William R" , > "Bui, Lien C" , > "Cuplin, Linda P" , > "Eckart, Dave F" , > "Espitallier, Dean S" , > "Griffin, Michael M" , > "Halldorson, Connie J" , > "Hogen, Richard" , > "Irish, Kelly J" , > "Lesnick Jr, Richard E" , > "Martin, Kyle W" , > "McMechen, Angus M" , > "Pence, Norman H" , > "Shafter, David H" , > "Short, Owen G" , > "Sidney, Wayne P" , > "Smith, Daniel Pr" , > "Steege, Daniel A" , > "Tebay, Wendy M" , > "Telford, David A" , > "Thomas, Peter C" , > "Zercher, Ray E" , > "Spath, Stuart R" , > "Vogt, Doyle" , > "Hinners, Noel W" >Cc: "Jolly, Steven D" , > "Curtis, Lad" , > "Cheuvront, Allan R" >X-Mailer: Internet Mail Service (5.5.2232.9) > >Here is the current status of the MGS spacecraft. > >Sequencing. The first 16-hour ANS sequence was loaded Tuesday night (4/20) >and went active Wednesday (4/21) morning. This sequence spends roughly 3 >orbits in array normal spin with the stuck HGA boresight pointed at Earth, >then spends about 1 orbit in sun'star'init with the +X axis pointing roughly >at the sun, and then repeats the cycle. During ANS, the spacecraft is >spinning but not processing stars, and is receiving 2K engineering data. >During SSI, the spacecraft is spinning and processing stars during the >eclipse, and receives no data. Wednesday afternoon a new sequence was >uplinked which extended this same sequencing for 10 days. > >Flight Troubleshooting. The first HGA gimbal troubleshooting test was >performed this afternoon on the spacecraft. Due to unfamiliarity with the >step mode commanding and due to polarity differences between rate mode and >step mode, rate mode was used during this first test. The expected position >of the azimuth gimbal was 41.03d. Using GDE side-2, the gimbal was >commanded to a position of 41.50d, then to 40.75d, then to 41.03d, and then >powered off. > >Results of Test 1. The initial power up showed that the azimuth gimbal was >no longer at 41.03d, but rather at 41.30d. When the gimbal was commanded to >41.50d, there was a delay of about 3 seconds prior to motion start. The >gimbal was able to achieve the 41.5d target (with a 2 encoder count >overshoot). When the gimbal was commanded back to 40.75d, it moved to about >41.35d and then began jittering about that position, much like it had during >the recent contingency mode entry. No further motion was observed, and the >HGA was then powered off. Please see me for a plot of the gimbal motion. > >Future Tests. On Thursday (4/22) at 0730 mountain time, a similar test will >be performed which commands the gimbal to 42.35d, and then back to 40.35d. >Results are expected on the ground at about 0800 mountain. A powered hold >test has been proposed for Thursday evening but not yet approved. This test >would apply powered hold to azimuth and elevation gimbals for 58 minutes, >and then remove powered hold from elevation. Power hold will be maintained >on azimuth for 8 hours. The purpose of this test would be to get a thermal >estimate of the integrity of the MLI blanket near the azimuth gimbal. > >Failure Theories. There are two leading failure theories right now. First, >that a blanket was pulled into the azimuth gimbal and is impeding the >motion. Second is a problem with the cable management which has somehow >obstructed the gimbal motion. > >Action Items. >Dwight Eckert or Roger Chiei: Is there a concern with power cycling the >GDEs? The original mission plan called for powering on the GDEs and then >never powering them off again. >Ray Zercher: At what azimuth angle do we give up the possibility of fixed >HGA mission? >Owen Short: Do the HGA rewinds prior to the ill-fated one show any >peculiarities or degradation of performance? > > >That's about is for now. More status will follow. Please call me or Wayne >Sidney if you have questions or concerns. > >Stu Spath >303-977-6819 >Pager: 303-686-8528 > > -------------------------------------------------------------------------- From joe@nova.Stanford.EDU Fri May 7 15:12:19 1999 Received: from nova.Stanford.EDU (nova.Stanford.EDU [36.10.0.123]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id PAA08045 for ; Fri, 7 May 1999 15:12:19 -0700 (PDT) Received: from neptune.Stanford.EDU (neptune.stanford.edu [36.10.0.149]) by nova.Stanford.EDU (8.8.8/8.8.8) with ESMTP id PAA06970; Fri, 7 May 1999 15:12:17 -0700 (PDT) Received: (from joe@localhost) by neptune.Stanford.EDU (8.8.5/8.8.3) id PAA22215; Fri, 7 May 1999 15:11:09 -0700 (PDT) Message-ID: X-Mailer: XFMail 1.2 [p0] on Solaris X-Priority: 3 (Normal) Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <199905072153.OAA07974@magellan.Stanford.EDU> Date: Fri, 07 May 1999 15:11:09 -0700 (PDT) Sender: joe@neptune.Stanford.EDU From: Joe Twicken To: rsimpson@nova.Stanford.EDU, hinson@nova.Stanford.EDU, joe@nova.Stanford.EDU Subject: RE: ODR Notice: /users/z12/procODR/91272134 Content-Length: 761 Status: RO (1) There was no HGA motion correction for any of these recordings (2) The recording for the 91111602.ODR began right at the egress occultation, and the processing failed (3) The baselines for the other three ODR's (91111518.ODR, 91111716.ODR and 91112309.ODR) were short; the processing did run to completion on these ODR's, however, and Dave should attempt to retrieve profiles from them On 07-May-99 Joe Twicken 723-3597 wrote: > 91111518.ODR f > 91111602.ODR f > 91111716.ODR f > 91111757.ODR p 34XRXER1R201 34XRXEC1XX01 34XR1EF1S101 34XR1ES1T101 > 34XR1ES1T201 34XR1ES1T301 34XR1ES1T401 34XR1ES1T501 > 91112309.ODR f > 91112351.ODR p 65XRXER1R201 65XRXEC1XX01 65XR1EF1S101 65XR1ES1T101 > 65XR1ES1T201 65XR1ES1T301 65XR1ES1T401 65XR1ES1T501