PDS_VERSION_ID        = PDS3
RECORD_TYPE           = STREAM
OBJECT                = TEXT
 PUBLICATION_DATE     = 2007-07-29
 NOTE                 = " E-mail and other messages
                          concerning MGS Radio Science on
                          or about 1999/070."
END_OBJECT            = TEXT
END


From ppriest@mmrs.fltops.jpl.nasa.gov Thu Mar 11 15:28:25 1999
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From: ppriest@mmrs.fltops.jpl.nasa.gov (Patricia Priest 264-859)
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DSS: 45

Orbit:    33e
SOE:  mf001d.00.tsoe
Begin Record:  070/17:28:00
End Record: 070/17:36:00
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SOE: mf001d.00.tsoe
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Orbit:  34e
SOE: mf001d.00.tsoe
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Orbit:  34i
SOE: mf001d.00.tsoe
Begin Record:  070/20:41:00
End Record:  070/20:48:00
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Orbit:  35e
SOE: mf001d.00.tsoe
Begin Record:  070/21:24:00
End Record: 070/21:31:00
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Orbit:  35i
SOE: mf001d.00.tsoe
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From rsimpson Fri Mar 12 11:10:12 1999
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Date: Fri, 12 Mar 1999 11:10:11 -0800 (PST)
From: Dick Simpson 723-3525 <rsimpson>
Message-Id: <199903121910.LAA14409@magellan.Stanford.EDU>
To: trish@godzilla.jpl.nasa.gov
Subject: Re: More Numbers
Cc: rsimpson
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Status: R

>I'm actually rather glad that we now use descending
>equator crossings because with periapsis moving around the pole,
>that rule would have been nasty to follow for egresses.

  I think everyone agreed that using periapsis in a near
  circular orbit is nasty.  But imagine descending equator
  crossing in an equatorial orbit.  Or imagine either
  in a geosynchronous orbit.

On another subject -- we have some real problems in the
070 occultations.  The first looks like egress with uplink
ramping.  We also have our spectral ripple in that one.

There's a nice ingress surface echo in the second, and
a beauty in the third.

But the third also looks like the carrier was sweeping all
over the place -- perhaps +/-800 Hz, compared with the
normal +/-50 Hz for ramping.  The sweeping started
perhaps 1 minute after egress and probably didn't last
long; but it's there in parts of two 60-sec average
spectra.

There's another ripple in the fifth occultation.

I don't see anything either in #7.  Must have been a very
weak surface echo.

I'll FAX you our plots from 1,3,5.  Then I'll play around
a bit with at least #3 to see whether I can figure out
what was happening.