PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2007-07-27 NOTE = " E-mail and other messages concerning MGS Radio Science on or about 1998/331." END_OBJECT = TEXT END From trish@godzilla.jpl.nasa.gov Thu Nov 26 19:16:39 1998 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 TAA20792 for ; Thu, 26 Nov 1998 19:16:38 -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 TAA06438; Thu, 26 Nov 1998 19:16:33 -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 TAA02183; Thu, 26 Nov 1998 19:16:31 -0800 (PST) Message-Id: <199811270316.TAA02183@rodan.jpl.nasa.gov> Date: 26 Nov 98 19:22:59 -0800 From: Trish Priest Subject: Occ. 198i To: Richard Simpson , Joe Twicken X-Mailer: QuickMail Pro 1.0.2d1 X-Priority: 3 Reply-To: Trish Priest Content-Type: text/plain; charset="iso-8859-1" Content-Length: 164 Status: RO Hello, Dick and Joe, Don't bother collecting the data for this one. The predicts were off (aerobraking) and I never found the signal. Off to dinner. -Trish ---------------------------------------------------------------------------- From ppriest@mmrs.fltops.jpl.nasa.gov Fri Nov 27 00:25:55 1998 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 AAA21131; Fri, 27 Nov 1998 00:25:54 -0800 (PST) Received: from mmrs.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.7.5/8.7.3) with SMTP id AAA23050; Fri, 27 Nov 1998 00:25:47 -0800 (PST) Received: by mmrs.jpl.nasa.gov (SMI-8.6/SMI-SVR4) id IAA29521; Fri, 27 Nov 1998 08:25:06 GMT Date: Fri, 27 Nov 1998 08:25:06 GMT From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859) Message-Id: <199811270825.IAA29521@mmrs.jpl.nasa.gov> To: data@magellan.stanford.edu, joe@neptune.Stanford.EDU, rsimpson@magellan.stanford.edu Content-Length: 375 Status: RO DSS: 54 Orbit: 771 Occultation: 198i SOE: p771a.00.tsoe Begin Record: 331/02:55:00 End Record: 331/03:15:00 Last Attenuation Change: none SNT: not available. Station never locked up. Elevation Angle: Orbit: 772 Occultation: 199i SOE: p772a.00.tsoe Begin Record: 331/08:08:00 End Record: 331/08:22:00 Last Attenuation Change: none SNT: 38.6 Elevation Angle: 50.88 ---------------------------------------------------------------------------- From trish@godzilla.jpl.nasa.gov Fri Nov 27 01:23:38 1998 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 BAA21152; Fri, 27 Nov 1998 01:23:37 -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 BAA06785; Fri, 27 Nov 1998 01:23:33 -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 BAA02420; Fri, 27 Nov 1998 01:23:32 -0800 (PST) Message-Id: <199811270923.BAA02420@rodan.jpl.nasa.gov> Date: 27 Nov 98 01:29:59 -0800 From: Trish Priest Subject: Occ. 197i and 198i To: Salvadore Abbate , Sami Asmar , MGS data , Paula Eshe , Randy Herrera , David Hinson , Richard Simpson , Stavros Toumpis , Joe Twicken , Len Tyler X-Mailer: QuickMail Pro 1.0.2d1 X-Priority: 3 Reply-To: Trish Priest Content-Type: text/plain; charset="iso-8859-1" Content-Length: 1343 Status: RO Hello, Neither Randy nor I saw signals for these two occultations. The predicts were off for some reason. I used the station predicts for Occ. 199i and saw a signal. I noted the predicted sky frequency from the station predicts and compared them to our own predicts from Joe's software. There was only a 5 Hz difference, so ours would have worked as well. The station was also having problems with predicts after occultation 198. All of these occultations used the same spk file. If the dynamic pressure of the atmosphere is not what they expect, the timing and the predicted frequency could be wrong. If, on subsequent orbits, the dynamic pressure is wrong in the opposite direction, then the predicts could be correct again. For occultation 198, the expected occultation time was much farther from predict than it was for occultation 199. If the timing errors stay within the 240 second requirement, then the signal should still be within the passband. I will look into this further. They may be accepting a larger timing error due to Thanksgiving. Orbit: 770 Occultation: 197i Begin Record: 330/21:45:00 End Record: 330/21:59:00 Orbit: 771 Occultation: 198i Begin Record: 331/02:55:00 End Record: 331/03:15:00 Orbit: 772 Occultation: 199i Begin Record: 331/08:08:00 End Record: 331/08:22:00 -Trish ---------------------------------------------------------------------------- From ppriest@mmrs.fltops.jpl.nasa.gov Fri Nov 27 10:44:39 1998 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 KAA21417; Fri, 27 Nov 1998 10:44:38 -0800 (PST) Received: from mmrs.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.7.5/8.7.3) with SMTP id KAA28142; Fri, 27 Nov 1998 10:45:09 -0800 (PST) Received: by mmrs.jpl.nasa.gov (SMI-8.6/SMI-SVR4) id SAA01967; Fri, 27 Nov 1998 18:44:38 GMT Date: Fri, 27 Nov 1998 18:44:38 GMT From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859) Message-Id: <199811271844.SAA01967@mmrs.jpl.nasa.gov> To: data@magellan.stanford.edu, joe@neptune.Stanford.EDU, rsimpson@magellan.stanford.edu Content-Length: 342 DSS: 15 Orbit: 773 Occultation: 200i SOE: p772a.00.tsoe Begin Record: 331/13:20:00 End Record: 331/13:34:00 Last Attenuation Change: SNT: 29.42 Elevation Angle: 46.260 Orbit: 774 Occultation: 201i SOE: p772a.00.tsoe Begin Record: 331/18:32:00 End Record: 331/18:46:00 Last Attenuation Change: SNT: 30.29 Elevation Angle: 33.789 ---------------------------------------------------------------------------- From ppriest@mmrs.fltops.jpl.nasa.gov Fri Nov 27 16:08:10 1998 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 QAA21960; Fri, 27 Nov 1998 16:08:09 -0800 (PST) Received: from mmrs.jpl.nasa.gov (mmrs.fltops.jpl.nasa.gov [137.228.136.10]) by airmail.fltops.jpl.nasa.gov (8.7.5/8.7.3) with SMTP id QAA00548; Fri, 27 Nov 1998 16:08:38 -0800 (PST) Received: by mmrs.jpl.nasa.gov (SMI-8.6/SMI-SVR4) id AAA03395; Sat, 28 Nov 1998 00:08:08 GMT Date: Sat, 28 Nov 1998 00:08:08 GMT From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859) Message-Id: <199811280008.AAA03395@mmrs.jpl.nasa.gov> To: data@magellan.stanford.edu, joe@neptune.Stanford.EDU, rsimpson@magellan.stanford.edu Content-Length: 276 Status: RO DSS: 45 Orbit: 775 Occultation: 202 SOE: p775a.00.tsoe Begin Record: 331/23:42:00 End Record: 331/23:57:00 Last Attenuation Change: SNT: 31.26 Elevation Angle: 42.355