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 1998/111."
END_OBJECT            = TEXT
END


From trish@rodan.jpl.nasa.gov Mon Apr 20 14:20:52 1998
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Date: 20 Apr 98 14:24:47 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: One-way
To: David Hinson <hinson@nimbus.Stanford.EDU>,
        Richard Simpson <rsimpson@magellan.stanford.edu>,
        Joe Twicken <joe@neptune.Stanford.EDU>
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Hello,

There is a DSS 63 pass tonight.  This is a 70-m antenna, so the entire
pass will be one-way.  This is the station over which tonight's
occultation occurs.  Would you like me to collect some extra one-way
data?  Telemetry will be on and the subreflector will be moving (outside
of the occultation period).  Would it still be good for Allan deviation
measurements?  There will be around 4 hours not counting the
occultation.

Please let me know.

-Trish

------------------------------------------------------------------------
From rsimpson Mon Apr 20 14:39:35 1998
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Date: Mon, 20 Apr 1998 14:39:33 -0700 (PDT)
From: Dick Simpson 723-3525 <rsimpson>
Message-Id: <199804202139.OAA16029@magellan.Stanford.EDU>
To: hinson@nimbus.Stanford.EDU, joe@neptune.Stanford.EDU,
        rsimpson@magellan.stanford.edu, trish@rodan.jpl.nasa.gov
Subject: Re: One-way
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Status: R

Joe and I think this would be fine.  We could use 4 hrs of one way
data to look for correlations between USO temperature and frequency.
This, of course, assumes we can get a reconstructed trajectory to
use in the data reduction.  But better to get the one-way data now
and look for the trajectory later than the other way around.

-----------------------------------------------------------------------
From trish@rodan.jpl.nasa.gov Tue Apr 21 02:59:35 1998
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Date: 21 Apr 98 03:03:31 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: Occultation #149
To: Salvadore Abbate <Salvatore.F.Abbate@jpl.nasa.gov>,
        Sami Asmar <Sami.W.Asmar@jpl.nasa.gov>,
        Jennifer Caetta <caetta@biollante.jpl.nasa.gov>,
        Paula Eshe <Paula.M.Eshe@jpl.nasa.gov>,
        Randy Herrera <rgh@godzilla.jpl.nasa.gov>,
        David Hinson <hinson@nimbus.Stanford.EDU>,
        Richard Simpson <rsimpson@magellan.stanford.edu>,
        Stavros Toumpis <stoumpis@magellan.stanford.edu>,
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        Len Tyler <len@nova.Stanford.EDU>
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Status: O

Hello,

The occultation went well at DSS 63.

Ingress:

Record Times: 111-08:41:00 to 111-08:58:00
One-way Times: 111-08:41:06 to 111-08:57:30
Expected Surface Begin:  111-08:52:14
Start of slew off-Earth (ISH):  111-08:50:09
SNT:  29.05

SPK:  spk_i_980419_OD251_313_V1
SOE:  p247b.03.soe
Script:  98108.15.a247.scr

No attenuation changes.

Egress (LGA, carrier-only):

Record Times:  111-09:11:00 to 111-09:51:00
Expected egress:  111-09:16:42
Periapsis:  111-09:24:54

One attenuation change at 09:11:55.
No script was used.

The next occultation occurs at 1:30 PM PDT Tuesday at DSS 15.

-Trish

-----------------------------------------------------------------------
From trish@rodan.jpl.nasa.gov Tue Apr 21 03:00:10 1998
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Date: 21 Apr 98 03:03:34 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: Periapsis 253 Gravity
To: Sami Asmar <Sami.W.Asmar@jpl.nasa.gov>,
        Georges Balmino <balmino@pontos.cnes.fr>,
        Paula Eshe <Paula.M.Eshe@jpl.nasa.gov>,
        Pat Esposito <pesposit@mail1.jpl.nasa.gov>,
        Frank Lemoine <flemoine@olympus.gsfc.nasa.GOV>,
        Richard Simpson <rsimpson@magellan.stanford.edu>,
        Bill Sjogren <William.L.Sjogren@jpl.nasa.gov>,
        David Smith <dsmith@ltpsun.gsfc.nasa.gov>,
        Len Tyler <len@nova.Stanford.EDU>,
        "Dah-Ning Yuan" <Dah-Ning.Yuan@jpl.nasa.gov>,
        Maria Zuber <zuber@tharsis.gsfc.nasa.gov>
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Status: O

Hello,

This periapsis occurred at DSS 63.

111-09:16:42  Exit occultation, spacecraft on LGA, NADIR pointed
111-09:24:54  Periapsis 253
111-09:40:11  End of NADIR, begin rollout
111-09:50:11  Spacecraft slew to Earth point
111-10:02:02  Switch back to HGA

Current products being used:

SPK:  spk_i_980417_OD245_274_V1
SOE:  p247b.03.soe

The next periapsis occurs at 2:03 PM PDT Tuesday over DSS 15.

-Trish

----------------------------------------------------------------------
From trish@rodan.jpl.nasa.gov Tue Apr 21 12:30:19 1998
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Date: 21 Apr 98 12:34:18 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: RE: Re: Occultation #149
To: "Dick Simpson 723-3525" <rsimpson@magellan.Stanford.EDU>
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Status: R

Hello, Dick,

The one-way data came after the occultation.  I set it up and went home.
I just came in, so I will find out how it went.  There were only 3 hours
and 20 minutes because I forgot about the MOLA ISH.

Record times:  111-10:05:00 to 13:25:00

-Trish

-------------------------------------------------------------------
From trish@rodan.jpl.nasa.gov Tue Apr 21 16:04:25 1998
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Date: 21 Apr 98 16:08:21 -0700
From: Trish Priest <trish@rodan.jpl.nasa.gov>
Subject: Oops
To: Richard Simpson <rsimpson@magellan.stanford.edu>
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Hello, Dick,

I just realized that I didn't create a long predict set for the one-way
last night.  The signal was in the center at the beginning of the
timeframe, but I can't guarantee that it will be at the end.

I guess that I will blame the fact that it was 3 AM.  I hope that you get
something useful.

-Trish

---------------------------------------------------------------------
From rsimpson Wed Apr 22 09:23:22 1998
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Date: Wed, 22 Apr 1998 09:23:22 -0700 (PDT)
From: Dick Simpson 723-3525 <rsimpson>
Message-Id: <199804221623.JAA08706@magellan.Stanford.EDU>
To: joe@neptune.Stanford.EDU, rsimpson, trish@rodan.jpl.nasa.gov
Subject: 70-m data
Content-Length: 295

Bad news on the 3h 20m one-way data.  Signal stays centered for about
20 minutes, then drifts out of the passband over the next 10 minutes.
Probably still good enough to get some of what we wanted.

Trish had indicated the predict set wasn't good for the full time.
Guess that's what happened.

----------------------------------------------------------------------
From pmeshe@mail1.jpl.nasa.gov Tue Apr 21 14:56:49 1998
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To: Asmar <Sami.W.Asmar@jpl.nasa.gov>,
        Jen Caetta <Jennifer.L.Caetta@jpl.nasa.gov>,
        Patricia Priest <Patricia.Priest@jpl.nasa.gov>,
        Salvatore Abbate <Salvatore.F.Abbate@jpl.nasa.gov>,
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From: pmeshe@mail1.jpl.nasa.gov (Paula M Eshe)
Subject: Occultation #150 Orbit #253
Date: Tue, 21 Apr 1998 14:56:46 -0700
Content-Length: 601
Status: RO

Hello

Happy 150th.
Everything went well with Occultation #150 at DSS 15.

Record Times: 111/20:20:00 to 111/20:37:00
One-Way Times: 111/20:20:00 to 111/20:36:25
Expected Surface: 111/20:31:24
Start of slew off-Earth (ISH): 111/20:28:37
SNT: 28.81

SOE: p254b.01.soe
SPK: spk_i_980419_OD251_313_V1
Script: 98111.15.a253.scr

No attenuation changes.

Egress (LGA, Carrier-only):

Record Times: 111/20:50:00 to 111/21:17:00
Expected egress: 111/20:55:20
Periapsis: 111/21:03:36

No script for egress.  No attenuation changes.

The next Occultation occurs on Wednesday  1:04 AM PDT at DSS 65.

Paula