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 1998/179."
END_OBJECT            = TEXT
END


From trish@rodan.jpl.nasa.gov Sun Jun 28 01:20:44 1998
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Date: 28 Jun 98 01:27:36 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: Periapsis 393 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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Hello,

Periapsis 393 occurred at DSS 54. The LGA did not lock up to the initial
uplink sweep (as with the first 2-way attempt), so this pass was
one-way.

Times of interest (all UTC ERT):

179-06:53:50  switch to LGA
179-06:59:45  receivers in lock on LGA signal ONE-way (approximate)
179-07:04:27  ISH - begin slew to NADIR
179-07:36:27  Periapsis 393
179-07:48:29  ISH - begin rollout
179-07:51:10  receiver out of lock before this time
179-08:08:29  ANS
179-08:20:20  switch back to HGA

The next gravity pass is Periapsis 396 (approximately 180-18:34 UTC ERT).

-Trish