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 2002/272." END_OBJECT = TEXT END From aseel@airmail.fltops.jpl.nasa.gov Mon Sep 30 16:46:09 2002 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.11.6/8.11.6) with SMTP id g8U6jn427155; Sun, 29 Sep 2002 23:45:53 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id XAA25445; Sun, 29 Sep 2002 23:46:05 -0700 Received: from airmail1.fltops.jpl.nasa.gov(137.228.96.26) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma025402; Sun, 29 Sep 02 23:45:15 -0700 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 A489D15C8; Sun, 29 Sep 2002 23:44:17 -0700 (PDT) Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.10.2+Sun/8.10.2) id g8U6j0706510; Mon, 30 Sep 2002 06:45:00 GMT Date: Mon, 30 Sep 2002 06:45:00 GMT From: aseel anabtawi Message-Id: <200209300645.g8U6j0706510@rsops2.fltops.jpl.nasa.gov> To: aseel.anabtawi@jpl.nasa.gov, data@magellan.stanford.edu, joe@neptune.stanford.edu, kusza@magellan.stanford.edu, rsimpson@magellan.stanford.edu Content-Length: 913 DSS: 65 RSR: RSR2A Subchannel: 1 Orbit Number: 15908 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-07:32:00 End Record: 2002/272-07:42:00 DSS: 65 RSR: RSR2A Subchannel: 1 Orbit Number: 15909 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-09:30:00 End Record: 2002/272-09:40:00 DSS: 65 RSR: RSR2A Subchannel: 1 Orbit Number: 15910 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-11:28:00 End Record: 2002/272-11:38:00 DSS: 65 RSR: RSR2A Subchannel: 1 Orbit Number: 15911 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-13:26:00 End Record: 2002/272-13:36:00 -------------------------------------------------------------------------- From aseel@airmail.fltops.jpl.nasa.gov Mon Sep 30 16:44:26 2002 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.11.6/8.11.6) with SMTP id g8TMFZ420239; Sun, 29 Sep 2002 15:15:35 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id PAA03792; Sun, 29 Sep 2002 15:15:51 -0700 Received: from airmail1.fltops.jpl.nasa.gov(137.228.96.26) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma003748; Sun, 29 Sep 02 15:15:16 -0700 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 63E4715C8; Sun, 29 Sep 2002 15:14:18 -0700 (PDT) Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.10.2+Sun/8.10.2) id g8TMF1m05937; Sun, 29 Sep 2002 22:15:01 GMT Date: Sun, 29 Sep 2002 22:15:01 GMT From: aseel anabtawi Message-Id: <200209292215.g8TMF1m05937@rsops2.fltops.jpl.nasa.gov> To: aseel.anabtawi@jpl.nasa.gov, data@magellan.stanford.edu, joe@neptune.stanford.edu, kusza@magellan.stanford.edu, rsimpson@magellan.stanford.edu Content-Length: 1140 DSS: 15 RSR: RSR2A Subchannel: 1 Orbit Number: 15911 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-13:26:00 End Record: 2002/272-13:36:00 DSS: 15 RSR: RSR2A Subchannel: 1 Orbit Number: 15912 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-15:23:00 End Record: 2002/272-15:33:00 DSS: 15 RSR: RSR2A Subchannel: 1 Orbit Number: 15913 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-17:21:00 End Record: 2002/272-17:31:00 DSS: 15 RSR: RSR2A Subchannel: 1 Orbit Number: 15914 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-19:18:00 End Record: 2002/272-19:28:00 DSS: 15 RSR: RSR2A Subchannel: 1 Orbit Number: 15915 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-21:16:00 End Record: 2002/272-21:26:00 -------------------------------------------------------------------------- From aseel@airmail.fltops.jpl.nasa.gov Mon Sep 30 16:48:26 2002 Received: from thorn.fltops.jpl.nasa.gov (thorn.fltops.jpl.nasa.gov [137.228.90.10]) by magellan.stanford.edu (8.11.6/8.11.6) with SMTP id g8U6mo427162; Sun, 29 Sep 2002 23:48:50 -0700 (PDT) Received: by thorn.fltops.jpl.nasa.gov; id XAA25548; Sun, 29 Sep 2002 23:49:05 -0700 Received: from airmail1.fltops.jpl.nasa.gov(137.228.96.26) by thorn.fltops.jpl.nasa.gov via smap (V4.2) id xma025526; Sun, 29 Sep 02 23:48:16 -0700 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 5D13615C8; Sun, 29 Sep 2002 23:47:18 -0700 (PDT) Received: (from aseel@localhost) by rsops2.fltops.jpl.nasa.gov (8.10.2+Sun/8.10.2) id g8U6m1k06563; Mon, 30 Sep 2002 06:48:01 GMT Date: Mon, 30 Sep 2002 06:48:01 GMT From: aseel anabtawi Message-Id: <200209300648.g8U6m1k06563@rsops2.fltops.jpl.nasa.gov> To: aseel.anabtawi@jpl.nasa.gov, data@magellan.stanford.edu, joe@neptune.stanford.edu, kusza@magellan.stanford.edu, rsimpson@magellan.stanford.edu Content-Length: 912 DSS: 45 RSR: RSR2A Subchannel: 1 Orbit Number: 15915 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-21:16:00 End Record: 2002/272-21:26:00 DSS: 45 RSR: RSR2A Subchannel: 1 Orbit Number: 15916 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/272-23:14:00 End Record: 2002/272-23:24:00 DSS: 45 RSR: RSR2A Subchannel: 1 Orbit Number: 15917 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/273-01:12:00 End Record: 2002/273-01:22:00 DSS: 45 RSR: RSR2A Subchannel: 1 Orbit Number: 15918 Occultation Sense: i SOE: mm214c.09.tsoe Ground Mode: 1 Uplink Station: -- Sampling Rate: 2K Bit Resolution: 16 Begin Record: 2002/273-03:09:00 End Record: 2002/273-03:19:00 -------------------------------------------------------------------------- From aseel@godzilla.jpl.nasa.gov Tue Oct 8 16:14:38 2002 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 g98NEa429661; Tue, 8 Oct 2002 16:14:37 -0700 (PDT) Received: from localhost (localhost [127.0.0.1]) by godzilla.jpl.nasa.gov (8.9.3/8.9.3) with SMTP id QAA04347; Tue, 8 Oct 2002 16:14:36 -0700 (PDT) Message-Id: <200210082314.QAA04347@godzilla.jpl.nasa.gov> Date: Tue, 8 Oct 2002 16:14:36 -0700 (PDT) From: Aseel Anabtawi Reply-To: Aseel Anabtawi Subject: Modulation at SPC-10 To: rsimpson@magellan.stanford.edu, joe@nova.stanford.edu, kusza@magellan.stanford.edu Cc: SAbbate@jftl.jpl.nasa.gov MIME-Version: 1.0 Content-Type: TEXT/plain; charset=us-ascii Content-MD5: X6wBp/66aLyTLB6QrzuTEA== X-Mailer: dtmail 1.2.1 CDE Version 1.2.1 SunOS 5.6 sun4u sparc Content-Length: 1928 Status: O Hello, The anomalies shown below were listed in recent health reports. How serious is this modulation? Should we ask the station to investigate? Regards, Aseel Data from occultation 15972i collected at DSS 15 (start time 2002/277- 13:05:00) have a +/-0.2 dB 7 second modulation on the free space carrier amplitude for most of the time before ingress. Data collected from DSS 15, occultation 15948i (start time 2002/275-14:00:00) had +/-1 dB sinusoidal modulation on the free-space carrier amplitude with period of ~10 seconds. The modulation was present before telemetry turned off but not noticeable in the noise level after ingress. amplitude over the course of the measurement, with +/-0.3 dB random fluctuations. Data collected from DSS 15 occultation 15924e (start time 2002/273- 13:42:00) had +/-0.7 dB sinusoidal modulation of the carrier amplitude with period of about 10 seconds. There was no modulation of the noise level either before or after the carrier appeared. Data collected from DSS 15 occultation 15924i (start time 2002/273- 14:56:00) may have very small-amplitude modulation of the carrier level (amplitude ~0.1 dB) with a similar ~10 s period. The first measurement collected at DSS 15 (occultation 15936i, start time 2002/274-14:28:00) had +/-0.2 dB modulation on the free-space carrier amplitude with period of about 5 seconds. The first measurement collected on day 272 at DSS 15 (occultaion 15911i, start time 2002/272-13:26:00) had max SNR levels about 1 dB lower than expected. In addition there was a +/-0.5 dB sinusoidal modulation on the free-space carrier amplitude, with period of about 10 seconds. There was no modulation on the carrier before telemetry was turned off or on the noise level. The last measurement collected on day 272 at DSS 15 (occultation 15915i, start time 2002/272-21:16:00) had a +0.5 dB ramp in the free-space carrier -------------------------------------------------------------------------- From rsimpson@magellan.stanford.edu Wed Oct 9 14:54:06 2002 Received: (from rsimpson@localhost) by magellan.stanford.edu (8.11.6/8.11.6) id g99Ls5e07915; Wed, 9 Oct 2002 14:54:05 -0700 (PDT) Date: Wed, 9 Oct 2002 14:54:05 -0700 (PDT) From: Dick Simpson 723-3525 Message-Id: <200210092154.g99Ls5e07915@magellan.stanford.edu> To: aseel@godzilla.jpl.nasa.gov, joe@nova.stanford.edu, kusza@magellan.stanford.edu, rsimpson@magellan.stanford.edu Subject: Re: Modulation at SPC-10 Cc: SAbbate@jftl.jpl.nasa.gov Content-Length: 1461 Status: R >15972i 2002/277-13:05:00 >15948i 2002/275-14:00:00 >15924e 2002/273-13:42:00 >15924i 2002/273-14:56:00 >15936i 2002/274-14:28:00 >15911i 2002/272-13:26:00 All of these were early in the pass; in only one case was there an earlier occultation without a problem reported. And in that case I looked up the plot and it DOES show modulation; it just wasn't reported because the modulation on the second occultation was much worse. The behavior would be consistent with erratic tracking of the ground antenna (overlapping coverage from DSS 65 in some of the cases shows no modulation). I thought about CONSCAN; I see MSPA (and therefore possible unexpected CONSCAN?) only on the DSN schedule for day 274. >The anomalies shown below were listed in recent health reports. >How serious is this modulation? Should we ask the station to >investigate? I think it's serious enough to look into. If you want the plots, they are on magellan:/users/z00/BRO; or I can send you hard copies. >The last measurement collected on day 272 at DSS 15 (occultation 15915i, >start time 2002/272-21:16:00) had a +0.5 dB ramp in the free-space >carrier. This is presumably something different. Including it will only confuse matters. Let's concentrate on the quasi-sinusoidal modulation. Thanks for picking up this pattern. With Kerri in and out, I've not been following this closely enough to notice; and she may not have been either. Dick -------------------------------------------------------------------------- From joe@nova.stanford.edu Wed Oct 9 22:03:20 2002 Received: from nova.Stanford.EDU (nova [171.64.90.123]) by magellan.stanford.edu (8.11.6/8.11.6) with ESMTP id g9A53K420375 for ; Wed, 9 Oct 2002 22:03:20 -0700 (PDT) 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 WAA20967; Wed, 9 Oct 2002 22:03:20 -0700 (PDT) Received: from neptune.Stanford.EDU (joe@localhost) by neptune.Stanford.EDU (8.11.6/8.11.6) with ESMTP id g9A53KK14041; Wed, 9 Oct 2002 22:03:20 -0700 (PDT) Message-Id: <200210100503.g9A53KK14041@neptune.Stanford.EDU> X-Authentication-Warning: neptune.Stanford.EDU: joe owned process doing -bs X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 From: Joe Twicken To: hinson@nova.stanford.edu, joe@nova.stanford.edu, rsimpson@nova.stanford.edu Subject: Re: RSR Notice: /users/z08/procRSR/22830438 In-reply-to: Your message of "Wed, 09 Oct 2002 21:50:14 PDT." <200210100450.g9A4oE520159@magellan.stanford.edu> References: <200210100450.g9A4oE520159@magellan.stanford.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 09 Oct 2002 22:03:20 -0700 Content-Length: 665 Status: RO (1) There was no HGA motion compensation for these recordings >22720732.RSR p 65XR1IRXN101 65XR1IC1XX01 65XR1IF1S101 65XR1IS1T101 65XR1IS1T201 65XR1IS1T301 65XR1IS1T401 65XR1IS1T501 >22720930.RSR p 65XR1IRXN101 65XR1IC1XX01 65XR1IF1S101 65XR1IS1T101 65XR1IS1T201 65XR1IS1T301 65XR1IS1T401 65XR1IS1T501 >22721128.RSR p 65XR1IRXN101 65XR1IC1XX01 65XR1IF1S101 65XR1IS1T101 65XR1IS1T201 65XR1IS1T301 65XR1IS1T401 65XR1IS1T501 >22721326.RSR p 65XR1IRXN101 65XR1IC1XX01 65XR1IF1S101 65XR1IS1T101 65XR1IS1T201 65XR1IS1T301 65XR1IS1T401 65XR1IS1T501 >2272132G.RSR p 15XR1IRXN101 15XR1IC1XX01 15XR1IF1S101 15XR1IS1T101 15XR1IS1T201 15XR1IS1T301 15XR1IS1T401 15XR1IS1T501 -------------------------------------------------------------------------- From joe@nova.stanford.edu Tue Oct 29 19:46:50 2002 Received: from nova.Stanford.EDU (nova [171.64.90.123]) by magellan.stanford.edu (8.11.6/8.11.6) with ESMTP id g9U3kos14769 for ; Tue, 29 Oct 2002 19:46:50 -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 TAA06199; Tue, 29 Oct 2002 19:46:53 -0800 (PST) Received: from neptune.Stanford.EDU (joe@localhost) by neptune.Stanford.EDU (8.11.6/8.11.6) with ESMTP id g9U3kql05014; Tue, 29 Oct 2002 19:46:52 -0800 (PST) Message-Id: <200210300346.g9U3kql05014@neptune.Stanford.EDU> X-Authentication-Warning: neptune.Stanford.EDU: joe owned process doing -bs X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 From: Joe Twicken To: hinson@nova.stanford.edu, joe@nova.stanford.edu, rsimpson@nova.stanford.edu Subject: Re: RSR Notice: /users/z08/procRSR/23021536 In-reply-to: Your message of "Tue, 29 Oct 2002 07:48:29 PST." <200210291548.g9TFmTe06565@magellan.stanford.edu> References: <200210291548.g9TFmTe06565@magellan.stanford.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Tue, 29 Oct 2002 19:46:52 -0800 Content-Length: 785 Status: RO (1) The Allan deviation was high for the 22721523.RSR (7.5e-13 at 4 seconds) and 22721721.RSR (8.0e-13) recordings (2) There was no HGA motion compensation for these recordings >22721523.RSR p 15XR1IRXN101 15XR1IC1XX01 15XR1IF1S101 15XR1IS1T101 15XR1IS1T201 15XR1IS1T301 15XR1IS1T401 15XR1IS1T501 >22721721.RSR p 15XR1IRXN101 15XR1IC1XX01 15XR1IF1S101 15XR1IS1T101 15XR1IS1T201 15XR1IS1T301 15XR1IS1T401 15XR1IS1T501 >22721918.RSR p 15XR1IRXN101 15XR1IC1XX01 15XR1IF1S101 15XR1IS1T101 15XR1IS1T201 15XR1IS1T301 15XR1IS1T401 15XR1IS1T501 >22722116.RSR p 15XR1IRXN101 15XR1IC1XX01 15XR1IF1S101 15XR1IS1T101 15XR1IS1T201 15XR1IS1T301 15XR1IS1T401 15XR1IS1T501 >22722314.RSR p 45XR1IRXN101 45XR1IC1XX01 45XR1IF1S101 45XR1IS1T101 45XR1IS1T201 45XR1IS1T301 45XR1IS1T401 45XR1IS1T501 -------------------------------------------------------------------------- From jtwicken@stanford.edu Wed Apr 30 16:56:11 2003 Received: from nova.Stanford.EDU (IDENT:mLImVQVBJhrc6mSjJagqdKb1QqMLWJF3@nova [171.64.90.123]) by magellan.stanford.edu (8.11.6/8.11.6) with ESMTP id h3UNuAd27304 for ; Wed, 30 Apr 2003 16:56:10 -0700 (PDT) Received: from neptune.Stanford.EDU (neptune.Stanford.EDU [171.64.90.149]) by nova.Stanford.EDU (8.12.8/8.12.8) with ESMTP id h3UNuHb7011079; Wed, 30 Apr 2003 16:56:17 -0700 Received: from neptune.Stanford.EDU (joe@localhost) by neptune.Stanford.EDU (8.11.6/8.11.6) with ESMTP id h3UNuGm01290; Wed, 30 Apr 2003 16:56:16 -0700 (PDT) Message-Id: <200304302356.h3UNuGm01290@neptune.Stanford.EDU> X-Authentication-Warning: neptune.Stanford.EDU: joe owned process doing -bs X-Mailer: exmh version 2.5 07/13/2001 with nmh-1.0.4 From: Joe Twicken To: hinson@nova.stanford.edu, joe@nova.stanford.edu, rsimpson@nova.stanford.edu Subject: Re: RSR Notice: /users/z18/procRSR/31202317 In-reply-to: Your message of "Wed, 30 Apr 2003 16:42:08 PDT." <200304302342.h3UNg8Y26802@magellan.stanford.edu> References: <200304302342.h3UNg8Y26802@magellan.stanford.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Wed, 30 Apr 2003 16:56:16 -0700 Content-Length: 1426 Status: RO (1) Reprocessed with Goddard trajectory (2) The Allan deviation was high for the 22721523.RSR (7.5e-13 at 4 seconds) and 22721721.RSR (8.0e-13) recordings (3) There was no HGA motion compensation for these recordings >22720732.RSR p 65XR1IRXN102 65XR1IC1XX02 65XR1IF1S102 65XR1IS1T102 65XR1IS1T202 65XR1IS1T302 65XR1IS1T402 65XR1IS1T502 >22720930.RSR p 65XR1IRXN102 65XR1IC1XX02 65XR1IF1S102 65XR1IS1T102 65XR1IS1T202 65XR1IS1T302 65XR1IS1T402 65XR1IS1T502 >22721128.RSR p 65XR1IRXN102 65XR1IC1XX02 65XR1IF1S102 65XR1IS1T102 65XR1IS1T202 65XR1IS1T302 65XR1IS1T402 65XR1IS1T502 >22721326.RSR p 65XR1IRXN102 65XR1IC1XX02 65XR1IF1S102 65XR1IS1T102 65XR1IS1T202 65XR1IS1T302 65XR1IS1T402 65XR1IS1T502 >2272132G.RSR p 15XR1IRXN102 15XR1IC1XX02 15XR1IF1S102 15XR1IS1T102 15XR1IS1T202 15XR1IS1T302 15XR1IS1T402 15XR1IS1T502 >22721523.RSR p 15XR1IRXN102 15XR1IC1XX02 15XR1IF1S102 15XR1IS1T102 15XR1IS1T202 15XR1IS1T302 15XR1IS1T402 15XR1IS1T502 >22721721.RSR p 15XR1IRXN102 15XR1IC1XX02 15XR1IF1S102 15XR1IS1T102 15XR1IS1T202 15XR1IS1T302 15XR1IS1T402 15XR1IS1T502 >22721918.RSR p 15XR1IRXN102 15XR1IC1XX02 15XR1IF1S102 15XR1IS1T102 15XR1IS1T202 15XR1IS1T302 15XR1IS1T402 15XR1IS1T502 >22722116.RSR p 15XR1IRXN102 15XR1IC1XX02 15XR1IF1S102 15XR1IS1T102 15XR1IS1T202 15XR1IS1T302 15XR1IS1T402 15XR1IS1T502 >22722314.RSR p 45XR1IRXN102 45XR1IC1XX02 45XR1IF1S102 45XR1IS1T102 45XR1IS1T202 45XR1IS1T302 45XR1IS1T402 45XR1IS1T502