PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 1999-03-23 NOTE = " E-mail and other messages concerning MGS Radio Science on or about 1997/098." END_OBJECT = TEXT END From trish@rodan.jpl.nasa.gov Mon Apr 14 09:40:12 1997 Received: from 128.149.43.3 (james.jpl.nasa.gov [128.149.43.3]) by rodan.Jpl.Nasa.Gov (8.8.5/8.6.6) with SMTP id JAA20238 for ; Mon, 14 Apr 1997 09:39:56 -0700 (PDT) Message-Id: <199704141639.JAA20238@rodan.Jpl.Nasa.Gov> Date: 14 Apr 97 09:45:54 -0700 From: Trish Priest Subject: RE: MGS RST Rpt HEA7103A.TXT To: Richard Simpson X-Mailer: QuickMail Pro 1.0.1 X-Priority: 3 Reply-To: Trish Priest Content-Type: text/plain; charset="iso-8859-1" Status: R Hello, Dick, The DSP was configured correctly, but the tolerance on the predicts was 40 Hz. The tolerance on Radio Science predicts was changed for the last Galileo occultation, and it was not returned to normal. Ed Gardner has since reset the predicts tolerance to +/- 5 Hz. Last night, the signal varied by about 10 Hz around a center that was about 5 Hz above the center of the passband. -Trish ---------------------------------------------------------------------- From rsimpson Mon Apr 14 09:49:17 1997 Date: Mon, 14 Apr 97 09:49:17 -0700 From: rsimpson (Richard Simpson) To: trish@rodan.jpl.nasa.gov Subject: RE: MGS RST Rpt HEA7103A.TXT Cc: rsimpson Status: R Good Morning Trish: 40 Hz tolerance makes sense for the first few minutes of the rehearsal on 97/098. But for the rest of the run, I hardly ever see the signal. And when I do, it's drifting very fast. Maybe it was just a bad predict set all around; I think it's more than the tolerance. Last night sounds a lot better. I need to set up the query, and we'll take a look here. It looks as though we should have data from both 15 and 45. ----------------------------------------------------------------------- From trish@rodan.jpl.nasa.gov Mon Apr 14 10:55:28 1997 Received: from 128.149.43.3 (james.jpl.nasa.gov [128.149.43.3]) by rodan.Jpl.Nasa.Gov (8.8.5/8.6.6) with SMTP id KAA21391 for ; Mon, 14 Apr 1997 10:55:23 -0700 (PDT) Message-Id: <199704141755.KAA21391@rodan.Jpl.Nasa.Gov> Date: 14 Apr 97 11:01:21 -0700 From: Trish Priest Subject: RE: MGS RST Rpt HEA7103A.TXT To: Richard Simpson X-Mailer: QuickMail Pro 1.0.1 X-Priority: 3 Reply-To: Trish Priest Content-Type: text/plain; charset="iso-8859-1" Status: RO Hello, Dick, On DOY 098, we used mixed mode predicts. They did not seem to work well, so we decided to stick with 2-way predicts instead. The two-way predicts are usually more consistent. DSS 15 went well yesterday. Times to query are 104-02:17:00 to 104-04:00:00. It was a short pass; then MGS went to DSS 25 (D/L only). DSS 45 had problems with the DSP-R. It never made it into the link. Sal is working on it. Hopefully it will be up for tonight's support. There is no DSS 15 track today. -Trish