PDS_VERSION_ID               = PDS3
RECORD_TYPE                  = STREAM
DATA_SET_ID                  =  "MEX-M-MRS-1/2/3-MCO-0027-V1.0"
STANDARD_DATA_PRODUCT_ID     = ENB
PRODUCER_ID                  = "SUE"
PRODUCT_ID                   = "M00SUE0L1A_ENB_041011620_00.TXT"
PRODUCT_CREATION_TIME        =  2005-07-27T14:02:38.000
INSTRUMENT_HOST_ID           = "MEX"
OBJECT                       = TEXT
  PUBLICATION_DATE             = 2005-06-10
  NOTE                         = "MEX SUE Experimenter Notes"
END_OBJECT                   = TEXT
END


From gene.goltz@jpl.nasa.gov Mon Apr 12 07:45:47 2004
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Date: Mon, 12 Apr 2004 07:45:46 -0700
To: Dick Simpson 650-723-3525 <rsimpson@magellan.Stanford.EDU>
From: Gene Goltz <gene.goltz@jpl.nasa.gov>
Subject: MEX DOY 101 & 102 Occultation Data
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Dick,

The MEX Occultation on DOY 101 (pass 0314) was performed over DSS-65.  I
recorded and played back RSR open-loop data as follows:

     -  X-band, 2-way
     -  RSR1B1
     -  2 kHz, 16 bits
     -  start#1 = 08:38:11
     -  stop#1 = 09:20:00
     -  start#2 = 16:18:08
     -  stop#2 = 16:55:04
     -  SFDUs = 4,727

The MEX Occultation on DOY 102 (pass 0315) was performed over DSS-55.  I
recorded and played back RSR open-loop data as follows:

     -  X-band, 2-way
     -  RSR1B1
     -  2 kHz, 16 bits
     -  start = 15:03:15
     -  stop = 15:45:04
     -  SFDUs = 2,510

You should be able to query these data from the TDS at your leisure.


Regards,
Gene


From rsimpson Mon Apr 12 13:11:32 2004
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Date: Mon, 12 Apr 2004 13:11:31 -0700 (PDT)
From: Dick Simpson 650-723-3525 <rsimpson>
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To: gene.goltz@jpl.nasa.gov
Subject: DOY 101 - First Occultation
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Gene:

  The first RSR run doesn't seem to correspond to an
occultation.  There's nothing in the SOE or DSN schedule
to indicate that MEX was being tracked before 1400 on
day 101.  There's nothing but noise in the data; so
I have removed the file from our collection.

Dick

- - - - - - - - - - - - -

The MEX Occultation on DOY 101 (pass 0314) was performed over DSS-65.  I
recorded and played back RSR open-loop data as follows:

     -  X-band, 2-way
     -  RSR1B1
     -  2 kHz, 16 bits
     -  start#1 = 08:38:11
     -  stop#1 = 09:20:00
     -  start#2 = 16:18:08
     -  stop#2 = 16:55:04
     -  SFDUs = 4,727

From rsimpson Mon Apr 12 14:19:58 2004
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Date: Mon, 12 Apr 2004 14:19:56 -0700 (PDT)
From: Dick Simpson 650-723-3525 <rsimpson>
Message-Id: <200404122119.i3CLJua26496@magellan.Stanford.EDU>
To: gene.goltz@jpl.nasa.gov, hinson@rocc.Stanford.EDU,
   joe@neptune.Stanford.EDU, len.tyler@stanford.Stanford.EDU,
   paetzold@geo.uni-koeln.de, rsimpson
Subject: DOY 101 MEX OCI
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Status: R

Day 101 (DSS 65; X-band only)
-----------------------------

  16:11:13 SOE says DSS 65 transmitter off
  16:48:24 SOE predicted Earth occultation
  16:48:46 Signal disappears

  There is less in the SOE and DKF about this occultation
  than the one on day 102.

  Input levels to the A/D are about - 16 dB with respect to
  the maximum range and SNR is 50 dB/Hz.  There are weak
  spurs at about +/-180 on either side of the carrier.
  There is a 8 dB amplitude spike a few seconds before the
  signal disappears.

  There are no sidebands on the carrier at occultation;
  sidebands are common (but not always present) in MGS
  occultations.  Recent MGS occultations have SNR ~50 dB,
  so the MEX signal is similar to MGS despite the higher
  transmitter power on the spacecraft.

  This recording looks very much like the ones from days
  098-099.

From paetzold.martin@web.de Tue Apr 13 09:48:37 2004
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To: "DickSimpson650-723-3525" <rsimpson@magellan.Stanford.EDU>
Subject: Re: DOY 101 MEX OCI
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<html><style>p {margin: 0px}</style><body bgcolor='#ffffff' style='font-size:9pt; font-family:Verdana; font-family: Verdana' ><P>Dick, does it mean that you covered this occultation at DSS65?</P><P>When it is DSS65 finally, why is there only X-band? Accord
 spike a few seconds before the <BR>&gt; signal disappears. <BR>&gt; <BR>&gt; There are no sidebands on the carrier at occultation;<BR>&gt; sidebands are common (but not always present) in MGS<BR>&gt; occultations. Recent MGS occultations have SNR ~50 dB,<