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 2003/162." END_OBJECT = TEXT END From rsimpson@magellan.stanford.edu Wed Jun 11 17:59:32 2003 Received: (from rsimpson@localhost) by magellan.stanford.edu (8.11.6/8.11.6) id h5C0xTH29521; Wed, 11 Jun 2003 17:59:30 -0700 (PDT) Date: Wed, 11 Jun 2003 17:59:30 -0700 (PDT) From: Dick Simpson 723-3525 Message-Id: <200306120059.h5C0xTH29521@magellan.stanford.edu> To: aseel.anabtawi@jpl.nasa.gov Subject: Re: C-Mode Cc: chinsan@magellan.stanford.edu, chinsan@stanford.edu, esun@stanford.Stanford.EDU, hinson@rocc.stanford.edu, joe@neptune.stanford.edu, kusza@stanford.Stanford.EDU, len@nova.stanford.edu, rsimpson@magellan.stanford.edu Content-Length: 633 >Should I stop data collection until we're out of C-Mode? Yes. >I believe we did that the last time this happened, and >decided that the SNR is not good enough even over >70-m antennas (DSS-63 is scheduled for the next >3 days). The plan is to kill the onboard sequences, >so telemetry won't be turned off for ingresses until we >return to nominal operations. If it sounds as though there might be a decent carrier during occultations, even without normal operations, it might be worth making some recordings. But I don't believe a low-gain antenna signal with engineering data is going to tell us much about Mars. -------------------------------------------------------------------------- From aseel@godzilla.jpl.nasa.gov Wed Jun 11 15:18:54 2003 From: "Aseel Anabtawi" To: , , "Dave Hinson 723-3534" , , "Dick Simpson 723-3525" , , , , , Subject: I'm Back .. and MGS is in C-Mode Date: Wed, 11 Jun 2003 15:18:26 -0700 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0039_01C3302C.B49AE450 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello, I got back from Italy last night, and I'm now back at work! I just found out that MGS is in C-Mode. The spacecraft=20 entered C-Mode at around 1000 UTC today (DOY 162). =20 The current plan is to complete recovery before the=20 beginning of sequence MM288 on DOY 166 (we are currently=20 in MM286, and MM287 starts in about two hours). I don't know what caused the spacecraft to enter C-Mode,=20 but there's a status meeting today at 3:30 PDT. Call-in=20 number is (818)393-4544. All the data from today's passes (DSS-25 earlier today, and=20 DSS-43, which is ongoing) either have no signal or a very=20 weak signal. Best Regards, Aseel -------------------------------------------------------------------------- Return-Path: aseel@airmail.fltops.jpl.nasa.gov Delivery-Date: Wed Jun 11 16:06:04 2003 Received: from airmail1.fltops.jpl.nasa.gov (airmail2.fltops.jpl.nasa.gov [137.228.96.27]) by magellan.stanford.edu (8.11.6/8.11.6) with ESMTP id h5BN63828075; Wed, 11 Jun 2003 16:06:03 -0700 (PDT) Received: from rsops2.fltops.jpl.nasa.gov (rsops2.fltops.jpl.nasa.gov [137.228.136.22]) by airmail1.fltops.jpl.nasa.gov (Postfix) with ESMTP id 8E34210922; Wed, 11 Jun 2003 16:06:02 -0700 (PDT) Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.11.6+Sun/8.11.6) id h5BN62509433; Wed, 11 Jun 2003 23:06:02 GMT Date: Wed, 11 Jun 2003 23:06:02 GMT From: aseel anabtawi Message-Id: <200306112306.h5BN62509433@rsops2.fltops.jpl.nasa.gov> Content-Type: text To: undisclosed-recipients:; Content-Length: 912 DSS: 25 RSR: RSR2A Subchannel: 1 Orbit Number: 19029 Occultation Sense: i SOE: mm286a.03.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2003/162-09:23:00 End Record: 2003/162-09:33:00 DSS: 25 RSR: RSR2A Subchannel: 1 Orbit Number: 19030 Occultation Sense: i SOE: mm286a.03.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2003/162-11:21:00 End Record: 2003/162-11:31:00 DSS: 25 RSR: RSR2A Subchannel: 1 Orbit Number: 19031 Occultation Sense: i SOE: mm286a.03.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2003/162-13:18:00 End Record: 2003/162-13:28:00 DSS: 25 RSR: RSR2A Subchannel: 1 Orbit Number: 19032 Occultation Sense: i SOE: mm286a.03.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2003/162-15:16:00 End Record: 2003/162-15:26:00 -------------------------------------------------------------------------- From aseel@godzilla.jpl.nasa.gov Wed Jun 11 16:54:30 2003 Received: from godzilla.jpl.nasa.gov (godzilla.jpl.nasa.gov [137.78.78.95]) by magellan.stanford.edu (8.11.6/8.11.6) with ESMTP id h5BNsU829014; Wed, 11 Jun 2003 16:54:30 -0700 (PDT) Received: from aseel (aseel.jpl.nasa.gov [137.78.78.43]) by godzilla.jpl.nasa.gov (8.9.3p2.cm/8.9.3) with SMTP id QAA09976; Wed, 11 Jun 2003 16:54:34 -0700 (PDT) Message-ID: <00ac01c33074$bdc379f0$2b4e4e89@jpl.nasa.gov> Reply-To: "Aseel Anabtawi" From: "Aseel Anabtawi" To: "Dick Simpson 723-3525" , , "Kerri Kusza 3-3669" , Subject: 2003/162 at DSS-25 Date: Wed, 11 Jun 2003 16:54:05 -0700 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Content-Length: 1464 Status: RO Hello, All the measurements over this pass had low SNR due to the spacecraft being in C-Mode. I was told that the spacecraft entered C-Mode around 1000, which means that the first measurement should've been OK, but it's not. I'm checking with the sequencing team. Regards, Aseel