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 1999/056." END_OBJECT = TEXT END From trish@godzilla.jpl.nasa.gov Tue Feb 23 20:50:49 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 UAA01340 for ; Tue, 23 Feb 1999 20:50:49 -0800 (PST) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.8.8+Sun/8.8.5) with ESMTP id UAA12000 for ; Tue, 23 Feb 1999 20:51:39 -0800 (PST) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.8.5/8.8.5) with SMTP id UAA09105 for ; Tue, 23 Feb 1999 20:51:37 -0800 (PST) Message-Id: <199902240451.UAA09105@rodan.jpl.nasa.gov> Date: 23 Feb 99 20:54:31 -0800 From: Trish Priest Subject: RE: NADIR Test To: "Dick Simpson 723-3525" 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: 366 Status: RO Reply to: RE: NADIR Test They moved the test at the last minute. It now starts with orbit 1532. Two orbits NADIR; one orbit Earth-pointed. This will repeat four times. We lost two orbits at DSS 45 because of the switch. (1520 and 1521) -Trish Dick Simpson 723-3525 wrote: > >I was expecting not very much occultation data today. >Are these LGA? -------------------------------------------------------------------------- From trish@godzilla.jpl.nasa.gov Wed Feb 24 16:49:50 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 QAA18514; Wed, 24 Feb 1999 16:49:50 -0800 (PST) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.8.8+Sun/8.8.5) with ESMTP id QAA16470; Wed, 24 Feb 1999 16:50:21 -0800 (PST) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.8.5/8.8.5) with SMTP id QAA13222; Wed, 24 Feb 1999 16:50:20 -0800 (PST) Message-Id: <199902250050.QAA13222@rodan.jpl.nasa.gov> Date: 24 Feb 99 16:53:15 -0800 From: Trish Priest Subject: Notes for several occultations To: Salvadore Abbate , Aseel Anabtawi , Sami Asmar , MGS data , Paula Eshe , Randy Herrera , David Hinson , Richard Simpson , Stavros Toumpis , 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: 1596 Status: RO Hello, Due to the NADIR test and Y2k testing at SPC 10, we will be losing a lot of occultations in the next couple of days. Here is a summary: 1532e Normal 1532i One-way ingress due to NADIR test. This is the beginning of the test. Is there enough one-way baseline? 1533e, 1533i, 1534e, 1534i All lost due to NADIR 1535e Was probably recorded, but there will be no signal. During the NADIR test, the MOT is turned off until a minute after egress. 1535i 055/23:45:00 DSS65 One-way ingress during the NADIR test day. It was actually before DSS 65 BOT. The signal wandered into the passband at the beginning (probably antenna moving to point. ) Noticed too late that attenuators were too high. Probably very low elev. angle. 1536e, 1536i, 1537e, 1537i, 1538e All lost due to NADIR 1538i 056/05:39:00 DSS65 Another one-way ingress 1539e, 1539i, 1540e, 1540i, 1541e All lost due to NADIR test. 1541i 056/11:32:00 DSS25 One-way ingress 1542e, 1542i, 1543e, 1543i, 1544e All lost due to NADIR test. 1544i 056/17:19:00 DSS45 Two-way ingress -- back to normal ABX-TMO operations. 1552i through 1554e Lost due to DSN tracking gap - Y2k testing at Goldstone. 1554i 057/12:55:00 DSS45 Back to normal ABX-TMO operations. 1555 057/13:45:00 Instrument turn on We should be able to collect occultation data normally through this. 1560 057/23:30 Will be the first NADIR orbit During the MOC Calibration, we will be able to collect very little data. The MOT will be turned off until one minute after egress. Ingress will be one-way with a 3 minute 45 second baseline. -Trish -------------------------------------------------------------------------- From ppriest@mmrs.fltops.jpl.nasa.gov Thu Feb 25 08:31:49 1999 Received: from airmail.fltops.jpl.nasa.gov (airmail.fltops.jpl.nasa.gov [137.228.96.12]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id IAA20648; Thu, 25 Feb 1999 08:31:49 -0800 (PST) Received: from mmrs.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 SMTP id IAA11036; Thu, 25 Feb 1999 08:32:42 -0800 (PST) Received: by mmrs.jpl.nasa.gov (SMI-8.6/SMI-SVR4) id QAA11622; Thu, 25 Feb 1999 16:32:39 GMT Date: Thu, 25 Feb 1999 16:32:39 GMT From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859) Message-Id: <199902251632.QAA11622@mmrs.jpl.nasa.gov> To: data@magellan.stanford.edu, joe@neptune.Stanford.EDU, rsimpson@magellan.stanford.edu Content-Length: 659 Status: R DSS: 65 Orbit: 1535i SOE: p1532a.04.tsoe Begin Record: End Record: Last Attenuation Change: SNT: Elevation Angle: Orbit: 1538i SOE: p1532a.04.tsoe Begin Record: 056/05:33:00 End Record: 056/05:51:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1539e SOE: p1532a.04.tsoe Begin Record: 056/06:23:00 End Record: 056/06:32:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1539i SOE: p1540a.00.tsoe Begin Record: 056/07:31:00 End Record: 056/07:48:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1540e SOE: p1540a.00.tsoe Begin Record: 056/08:20:00 End Record: 056/08:29:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From ppriest@mmrs.fltops.jpl.nasa.gov Thu Feb 25 08:33:22 1999 Received: from airmail.fltops.jpl.nasa.gov (airmail.fltops.jpl.nasa.gov [137.228.96.12]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id IAA20656; Thu, 25 Feb 1999 08:33:22 -0800 (PST) Received: from mmrs.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 SMTP id IAA11085; Thu, 25 Feb 1999 08:34:15 -0800 (PST) Received: by mmrs.jpl.nasa.gov (SMI-8.6/SMI-SVR4) id QAA11694; Thu, 25 Feb 1999 16:34:13 GMT Date: Thu, 25 Feb 1999 16:34:13 GMT From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859) Message-Id: <199902251634.QAA11694@mmrs.jpl.nasa.gov> To: data@magellan.stanford.edu, joe@neptune.Stanford.EDU, rsimpson@magellan.stanford.edu Content-Length: 552 Status: R DSS: 25 Orbit: 1540i SOE: p1540a.00.tsoe Begin Record: 056/09:28:00 End Record: 056/09:43:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1541e SOE: p1540a.00.tsoe Begin Record: 056/10:17:00 End Record: 056/10:26:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1541i SOE: p1540a.00.tsoe Begin Record: 056/11:26:00 End Record: 056/11:40:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1542e SOE: p1540a.00.tsoe Begin Record: 056/12:15:00 End Record: 056/12:24:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From trish@godzilla.jpl.nasa.gov Thu Feb 25 13:46:49 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 NAA10837 for ; Thu, 25 Feb 1999 13:46:48 -0800 (PST) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.8.8+Sun/8.8.5) with ESMTP id NAA19658 for ; Thu, 25 Feb 1999 13:47:39 -0800 (PST) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.8.5/8.8.5) with SMTP id NAA14534 for ; Thu, 25 Feb 1999 13:47:40 -0800 (PST) Message-Id: <199902252147.NAA14534@rodan.jpl.nasa.gov> Date: 25 Feb 99 13:50:34 -0800 From: Trish Priest Subject: RE: 1541e To: "Dick Simpson 723-3525" 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: 461 Status: R Reply to: RE: 1541e Hello, Dick, This was due to a known (and infrequent) remote ops bug. Jen is working on it. The DSP never went into run. -Trish Dick Simpson 723-3525 wrote: > >After a long run of good luck, we have hit another occultation >which isn't in the CDR QueryServer. Occultations both before >and after seem OK, so this may be a DSP failure. Confirm? > >1999/056-10:17:00 1999/056-10:26:00 00.00 25 "01540a.00.tsoe" > >Thanks. -------------------------------------------------------------------------- From trish@godzilla.jpl.nasa.gov Thu Feb 25 14:42:07 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 OAA11014 for ; Thu, 25 Feb 1999 14:42:07 -0800 (PST) Received: from rodan.jpl.nasa.gov (rodan.jpl.nasa.gov [137.78.177.110]) by godzilla.jpl.nasa.gov (8.8.8+Sun/8.8.5) with ESMTP id OAA19985; Thu, 25 Feb 1999 14:42:57 -0800 (PST) Received: from 137.78.177.117 (trish-mac.jpl.nasa.gov [137.78.177.117]) by rodan.jpl.nasa.gov (8.8.5/8.8.5) with SMTP id OAA14622; Thu, 25 Feb 1999 14:42:58 -0800 (PST) Message-Id: <199902252242.OAA14622@rodan.jpl.nasa.gov> Date: 25 Feb 99 14:45:53 -0800 From: Trish Priest Subject: NADIR Update To: Len Tyler CC: Richard Simpson , Tom Thorpe X-Mailer: QuickMail Pro 1.5.4 (Mac) X-Priority: 3 MIME-Version: 1.0 Reply-To: Trish Priest Content-Type: text/plain; charset="US-Ascii" Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by magellan.Stanford.EDU id OAA11014 Content-Length: 886 Status: RO Hello, Len, This is not a problem for Mapping. Basically, they did not look at NADIR pointing in the fixed HGA mode closely enough. Therefore, the reaction wheels were being almost driven to saturation and were being heated in order to keep the spacecraft stable. The spacecraft team will upload a new filter for the input to the reaction wheels so that they are not overdriven. The filter will also have a notch at the solar panel frequency. This notch was planned for the beginning of Mapping anyway. There is also Apparently these types of adjustments were made for SPO and will be made for Mapping, but they slipped through the cracks for fixed HGA Mapping. The current plan is to continue NADIR pointing testing over the weekend and be ready for the MOC Cal on Monday. -Trish -------------------------------------------------------------------------- From ppriest@mmrs.fltops.jpl.nasa.gov Thu Feb 25 17:07:12 1999 Received: from airmail.fltops.jpl.nasa.gov (airmail.fltops.jpl.nasa.gov [137.228.96.12]) by magellan.Stanford.EDU (8.8.5/8.8.3) with ESMTP id RAA11338; Thu, 25 Feb 1999 17:07:11 -0800 (PST) Received: from mmrs.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 SMTP id RAA17460; Thu, 25 Feb 1999 17:08:04 -0800 (PST) Received: by mmrs.jpl.nasa.gov (SMI-8.6/SMI-SVR4) id BAA14938; Fri, 26 Feb 1999 01:08:01 GMT Date: Fri, 26 Feb 1999 01:08:01 GMT From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859) Message-Id: <199902260108.BAA14938@mmrs.jpl.nasa.gov> To: data@magellan.stanford.edu, joe@neptune.Stanford.EDU, rsimpson@magellan.stanford.edu Content-Length: 1666 Status: RO DSS: 45 Orbit: 1542i SOE: p1540a.00.tsoe Begin Record: 056/13:23:00 End Record: 056/13:38:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1543e SOE: p1540a.00.tsoe Begin Record: 056/14:13:00 End Record: 056/14:22:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1543i SOE: p1540a.00.tsoe Begin Record: 056/15:21:00 End Record: 056/15:35:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1544e SOE: p1540a.00.tsoe Begin Record: 056/16:10:00 End Record: 056/16:19:00 Last Attenuation Change: SNT: 29.19 Elevation Angle: 54.341 Orbit: 1544i SOE: p1540a.00.tsoe Begin Record: 056/17:19:00 End Record: 056/17:35:00 Last Attenuation Change: SNT: 28.56 Elevation Angle: 63.163 Orbit: 1545e SOE: p1540a.00.tsoe Begin Record: 056/18:08:00 End Record: 056/18:16:00 Last Attenuation Change: SNT: 28.15 Elevation Angle: 67.198 Orbit: 1545i SOE: p1540a.00.tsoe Begin Record: 056/19:16:00 End Record: 056/19:32:00 Last Attenuation Change: SNT: 28.32 Elevation Angle: 64.028 Orbit: 1546e SOE: p1540a.00.tsoe Begin Record: 056/20:06:00 End Record: 056/20:14:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1546i SOE: p1540a.00.tsoe Begin Record: 056/21:14:00 End Record: 056/21:30:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1547e SOE: p1540a.00.tsoe Begin Record: 056/22:03:00 End Record: 056/22:12:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1547i SOE: p1540a.00.tsoe Begin Record: 056/23:12:00 End Record: 056/23:28:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 1548e SOE: p1540a.00.tsoe Begin Record: 057/00:01:00 End Record: 057/00:09:00 Last Attenuation Change: SNT: Elevation Angle: