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 2001/170." END_OBJECT = TEXT END From ppriest@airmail.fltops.jpl.nasa.gov Tue Jun 19 01:14 PDT 2001 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.9.3/8.9.3) with SMTP id BAA13295; Tue, 19 Jun 2001 01:14:47 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id BAA06344; Tue, 19 Jun 2001 01:15:28 -0700 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma006325; Tue, 19 Jun 01 01:15:10 -0700 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.3+Sun/8.9.3) with ESMTP id BAA15763; Tue, 19 Jun 2001 01:15:09 -0700 (PDT) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id IAA24619; Tue, 19 Jun 2001 08:15:09 GMT Date: Tue, 19 Jun 2001 08:15:09 GMT From: Patricia Priest Message-Id: <200106190815.IAA24619@mmrs.fltops.jpl.nasa.gov> DSS: 15 Apparently-To: Apparently-To: Content-Type: text Content-Length: 145 Status: RO Orbit: 10196i SOE: mm149a.04.tsoe Begin Record: 170/06:59:00 End Record: 170/07:07:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From ppriest@airmail.fltops.jpl.nasa.gov Tue Jun 19 10:45 PDT 2001 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.9.3/8.9.3) with SMTP id KAA23527; Tue, 19 Jun 2001 10:45:27 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id KAA18221; Tue, 19 Jun 2001 10:46:09 -0700 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma018024; Tue, 19 Jun 01 10:45:56 -0700 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.3+Sun/8.9.3) with ESMTP id KAA24504; Tue, 19 Jun 2001 10:45:56 -0700 (PDT) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id RAA24776; Tue, 19 Jun 2001 17:45:55 GMT Date: Tue, 19 Jun 2001 17:45:55 GMT From: Patricia Priest Message-Id: <200106191745.RAA24776@mmrs.fltops.jpl.nasa.gov> DSS: 45 Apparently-To: Apparently-To: Content-Type: text Content-Length: 724 Status: RO Orbit: 10197i SOE: mm149a.04.tsoe Begin Record: 170/08:57:00 End Record: 170/09:05:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10198i SOE: mm149a.04.tsoe Begin Record: 170/10:54:00 End Record: 170/11:02:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10199i SOE: mm149a.04.tsoe Begin Record: 170/12:52:00 End Record: 170/13:00:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10200i SOE: mm149a.04.tsoe Begin Record: 170/14:50:00 End Record: 170/14:58:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10201i SOE: mm149a.04.tsoe Begin Record: 170/16:48:00 End Record: 170/16:56:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From ppriest@airmail.fltops.jpl.nasa.gov Tue Jun 19 20:34 PDT 2001 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.9.3/8.9.3) with SMTP id UAA24504; Tue, 19 Jun 2001 20:34:49 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id UAA15427; Tue, 19 Jun 2001 20:35:31 -0700 Received: from airmail.fltops.jpl.nasa.gov(137.228.96.12) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma015312; Tue, 19 Jun 01 20:35:11 -0700 Received: from mmrs.fltops.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.9.3+Sun/8.9.3) with ESMTP id UAA04767; Tue, 19 Jun 2001 20:35:10 -0700 (PDT) Received: (from ppriest@localhost) by mmrs.fltops.jpl.nasa.gov (8.8.8+Sun/8.8.8) id DAA24955; Wed, 20 Jun 2001 03:35:10 GMT Date: Wed, 20 Jun 2001 03:35:10 GMT From: Patricia Priest Message-Id: <200106200335.DAA24955@mmrs.fltops.jpl.nasa.gov> DSS: 65 Apparently-To: Apparently-To: Content-Type: text Content-Length: 578 Status: RO Orbit: 10203i SOE: mm149a.04.tsoe Begin Record: 170/20:43:00 End Record: 170/20:51:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10204i SOE: mm149a.04.tsoe Begin Record: 170/22:41:00 End Record: 170/22:49:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10205i SOE: mm149a.04.tsoe Begin Record: 171/00:39:00 End Record: 171/00:47:00 Last Attenuation Change: SNT: Elevation Angle: Orbit: 10206i SOE: mm149a.04.tsoe Begin Record: 171/02:37:00 End Record: 171/02:45:00 Last Attenuation Change: SNT: Elevation Angle: -------------------------------------------------------------------------- From joe@neptune.stanford.edu Wed Jun 27 14:35 PDT 2001 Received: from neptune.Stanford.EDU (neptune [171.64.90.149]) by magellan.stanford.edu (8.9.3/8.9.3) with ESMTP id OAA06316 for ; Wed, 27 Jun 2001 14:35:50 -0700 (PDT) Received: (from joe@localhost) by neptune.Stanford.EDU (8.9.3/8.9.3) id OAA15492; Wed, 27 Jun 2001 14:35:17 -0700 (PDT) Message-ID: X-Mailer: XFMail 1.2 [p0] on Solaris X-Priority: 3 (Normal) Content-Transfer-Encoding: 8bit MIME-Version: 1.0 In-Reply-To: <200106272106.OAA03205@magellan.stanford.edu> Date: Wed, 27 Jun 2001 14:35:16 -0700 (PDT) Sender: joe@neptune.stanford.edu From: Joe Twicken To: joe@nova.stanford.edu, rsimpson@magellan.stanford.edu, hinson@nova.stanford.edu Subject: RE: ODR Notice: /users/z21/procODR/11782047 Content-Type: text/plain; charset=us-ascii Content-Length: 1149 Status: RO (1) All five recordings at DSS 45 have the sawtooth problem (2) There was no HGA motion compensation for these recordings On 27-Jun-01 Joe Twicken 723-3597 wrote: > 11700659.ODR p 15XRXIR1R201 15XRXIC1XX01 15XR1IF1S101 15XR1IS1T101 > 15XR1IS1T201 15XR1IS1T301 15XR1IS1T401 15XR1IS1T501 > 11700857.ODR p 45XRXIR1R201 45XRXIC1XX01 45XR1IF1S101 45XR1IS1T101 > 45XR1IS1T201 45XR1IS1T301 45XR1IS1T401 45XR1IS1T501 > 11701054.ODR p 45XRXIR1R201 45XRXIC1XX01 45XR1IF1S101 45XR1IS1T101 > 45XR1IS1T201 45XR1IS1T301 45XR1IS1T401 45XR1IS1T501 > 11701252.ODR p 45XRXIR1R201 45XRXIC1XX01 45XR1IF1S101 45XR1IS1T101 > 45XR1IS1T201 45XR1IS1T301 45XR1IS1T401 45XR1IS1T501 > 11701450.ODR p 45XRXIR1R201 45XRXIC1XX01 45XR1IF1S101 45XR1IS1T101 > 45XR1IS1T201 45XR1IS1T301 45XR1IS1T401 45XR1IS1T501 > 11701648.ODR p 45XRXIR1R201 45XRXIC1XX01 45XR1IF1S101 45XR1IS1T101 > 45XR1IS1T201 45XR1IS1T301 45XR1IS1T401 45XR1IS1T501 > 11702043.ODR p 65XRXIR1R201 65XRXIC1XX01 65XR1IF1S101 65XR1IS1T101 > 65XR1IS1T201 65XR1IS1T301 65XR1IS1T401 65XR1IS1T501 > 11702241.ODR p 65XRXIR1R201 65XRXIC1XX01 65XR1IF1S101 65XR1IS1T101 > 65XR1IS1T201 65XR1IS1T301 65XR1IS1T401 65XR1IS1T501 Received: from magellan.stanford.edu by eis-msg-021.jpl.nasa.gov with ESMTP; Wed , 27 Jun 2001 15:02:35 -0700 Received: (from rsimpson@localhost) by magellan.stanford.edu (8.9.3/8.9.3) id PAA11422; Wed, 27 Jun 2001 15:01:41 -0700 (PDT) Date: Wed, 27 Jun 2001 15:01:41 -0700 (PDT) From: Dick Simpson 723-3525 Message-Id: <200106272201.PAA11422@magellan.stanford.edu> To: aseel@jpl.nasa.gov, hinson@nimbus.Stanford.EDU, joe@neptune.stanford.edu, len@nova.stanford.edu, mgsops@rodan.jpl.nasa.gov, sabbate@jftl.jpl.nasa.gov, sami.asmar@jpl.nasa.gov Subject: URGENT MGS Data Quality Issue Not sure who handles this given that Sami and Aseel are away; so I'm sending to everyone I can think of -- Joe noticed a couple days ago that the first five occultations at DSS 45 on 2001/169 suffered what what we call the "sawtooth" problem. There is a loss of synchronism between the POCA timing and the timing of the data sampling. There was no reconstructed orbit (SPK file) for the remaining three occultations (or any others since), so we postponed raising an alarm until the new file was in hand today. As expected, the remaining three orbits at DSS 45 on 2001/169 have sawtooth problems. more ominous is the fact that ALL five orbits collected at DSS 45 on the following day are also bad. Joe's processing has not yet gone beyone 2001/170; but we will advise you as more results are available. Since a large fraction of our data are being collected at SPC 40 these days, frequent sawtooth problems cut significantly into our volume of good data. To date, we have not found a way to salvage data that are corrupted by the sawtooth, so each contaminated occultation is essentially lost so far as the atmospheric profile is concerned. I recommend that someone look into this as soon as possible. It could be that the problem has corrected itself since 2001/170; but the fact that 13 occultations in a row are suddenly bad is not good news. I suspect that Sal ends up with this assignment, but I'll leave it to the people at JPL to figure out the management response. Dick -------------------------------------------------------------------------- From aseel@godzilla.jpl.nasa.gov Fri Jun 29 03:39 PDT 2001 Received: from godzilla.jpl.nasa.gov (godzilla.jpl.nasa.gov [137.78.177.120]) by magellan.stanford.edu (8.9.3/8.9.3) with ESMTP id DAA01426 for ; Fri, 29 Jun 2001 03:39:49 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by godzilla.jpl.nasa.gov (8.9.3/8.9.3) with SMTP id DAA26754; Fri, 29 Jun 2001 03:40:43 -0700 (PDT) Message-Id: <200106291040.DAA26754@godzilla.jpl.nasa.gov> Date: Fri, 29 Jun 2001 03:40:43 -0700 (PDT) From: Aseel Anabtawi Reply-To: Aseel Anabtawi Subject: 2001/169 at DSS 45 To: joe@nova.stanford.edu Cc: rsimpson@magellan.stanford.edu, aseel@godzilla.jpl.nasa.jpl MIME-Version: 1.0 Content-MD5: D7jl8vHggOmHk62qKrcjUw== X-Mailer: dtmail 1.2.1 CDE Version 1.2.1 SunOS 5.6 sun4u sparc Content-Type: TEXT/plain; charset=us-ascii Content-Length: 591 Status: RO Joe, Dick I checked through all of the measurements for DSS 45 and DOY 169 and DOY 170. I could not find any problems with in the spc errlog indicating a sawtooth problem. The measurements all rpoceeded with no problems from the log's point of view. Usually we get the all to familiar "Circular Buffer Error" message on screen and the prescribed solution lately has been to flush the buffers. But these measurements did not yield any error messages. Maybe between Sal and Aseel, they can find a more detailed explanation for these anomalies. Tim -------------------------------------------------------------------------- From joe@neptune.stanford.edu Thu Jan 17 11:24:33 2002 Received: from nova.Stanford.EDU (nova [171.64.90.123]) by magellan.stanford.edu (8.8.8+Sun/8.8.8) with ESMTP id LAA05532 for ; Thu, 17 Jan 2002 11:24:33 -0800 (PST) Received: from neptune.Stanford.EDU (neptune.Stanford.EDU [171.64.90.149]) by nova.Stanford.EDU (8.9.3/8.9.3) with ESMTP id LAA12132; Thu, 17 Jan 2002 11:24:28 -0800 (PST) Received: from localhost (joe@localhost) by neptune.Stanford.EDU (8.8.8+Sun/8.8.8) with ESMTP id LAA01445; Thu, 17 Jan 2002 11:24:26 -0800 (PST) Message-Id: <200201171924.LAA01445@neptune.Stanford.EDU> X-Mailer: exmh version 2.0.2 2/24/98 From: Joe Twicken To: hinson@nova.stanford.edu, joe@nova.stanford.edu, rsimpson@nova.stanford.edu Subject: Re: ODR Notice: /users/z14/procODR/20171845 In-reply-to: Your message of "Thu, 17 Jan 2002 11:03:57 PST." <200201171903.LAA05393@magellan.stanford.edu> References: <200201171903.LAA05393@magellan.stanford.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 17 Jan 2002 11:24:26 -0800 Sender: joe@neptune.stanford.edu Content-Length: 403 Status: RO (1) Reprocessed with Goddard trajectory >11700659.ODR p 15XRXIR1R202 15XRXIC1XX02 15XR1IF1S102 15XR1IS1T102 15XR1IS1T202 15XR1IS1T302 15XR1IS1T402 15XR1IS1T502 >11702043.ODR p 65XRXIR1R202 65XRXIC1XX02 65XR1IF1S102 65XR1IS1T102 65XR1IS1T202 65XR1IS1T302 65XR1IS1T402 65XR1IS1T502 >11702241.ODR p 65XRXIR1R202 65XRXIC1XX02 65XR1IF1S102 65XR1IS1T102 65XR1IS1T202 65XR1IS1T302 65XR1IS1T402 65XR1IS1T502