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 1998/173."
END_OBJECT            = TEXT
END


From trish@rodan.jpl.nasa.gov Mon Jun 22 17:09:31 1998
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Date: 22 Jun 98 17:15:59 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: Periapses 380 and 382 Gravity
To: Sami Asmar <Sami.W.Asmar@jpl.nasa.gov>,
        Georges Balmino <balmino@pontos.cnes.fr>,
        Paula Eshe <Paula.M.Eshe@jpl.nasa.gov>,
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Status: R

Hello,

Periapsis 382 was over DSS 15 and DSS 45.

173-22:54:15  switch to LGA
173-22:58:47  receivers in lock on LGA signal (DSS 15)
173-23:00:00  receivers in lock at DSS 45
173-23:04:52  ISH - begin slew to NADIR
173-23:36:52  Periapsis 382
173-23:38:28  receivers at DSS 45 started dropping out of lock
173-23:48:54  ISH - begin rollout
173-23:53:14  receiver out of lock before this time at DSS 15
173-00:08:54  ANS
173-00:20:45  switch back to HGA

The next gravity pass is Periapsis 384 (approximately 174-22:53 UTC ERT).
Beginning with Periapsis 387, six measurements will be conducted
two-way.

-Trish