PDS_VERSION_ID               = PDS3
RECORD_TYPE                  = STREAM
STANDARD_DATA_PRODUCT_ID     = HEA
DATA_SET_ID                  =  "MEX-M-MRS-1/2/3-PRM-0235-V1.0"
PRODUCT_ID                   = "M00SUE0L1A_HEA_043551005_00.TXT"
PRODUCT_CREATION_TIME        =  2006-08-09T11:54:25.000
PRODUCER_ID                  = "SUE"
INSTRUMENT_HOST_ID           = "MEX"
OBJECT                       = TEXT
PUBLICATION_DATE               = 2004-12-23
NOTE                           = "DSN MEX RSR Data Collection: Days 353-358"
END_OBJECT                   = TEXT
END


Miscellaneous
=============

     This is the first report since HEA4348A.TXT.


Open Loop Data
==============

  Data Collection
  ---------------

     We have completed quick-look processing on the following MEX RSR open
loop data at Stanford:

DOY DSS        RSR        BAND RSR CH KSPS BT  REC   RECS      RSR      MAX
          START    STOP         ID         RS  LEN          FILE NAME   SNR
--- --- -------- -------- ---- --- -- ---- -- ----- ----- ------------ -----
353  15 17:48:00 18:04:00 X/XR   4  1    2 16  8260   961 4353174A.RSR  48.6
353  15 17:48:00 18:04:00 X/SR   3  1    2 16  8260   961 4353174B.RSR  34.2
355  63 10:05:01 10:26:00 X/XR   4  1    2 16  8260  1260 4355100A.RSR  55.3
355  63 10:05:01 10:26:00 X/SR   3  1    2 16  8260  1260 4355100B.RSR  42.9
358  65 12:12:01 12:27:00 X/XR   4  1    2 16  8260   900 4358121A.RSR  48.5
358  65 12:12:01 12:27:00 X/SR   3  1    2 16  8260   900 4358121B.RSR  31.9

     Gene Goltz reports that data on day 354 were lost:

      The MEX Occultation on DOY 354 (pass 0567) occurred over DSS-43 at
      00:42:42 (approximately); but we were unable to acquire the data
      because no RSR was available (RSR1 was in use by MGS, and RSR2 is
      down for shipping to the Parkes antenna for Cassini Huygens Probe
      activities).

  Anomalies
  ---------

     Weak transient surface echoes are visible in the quick-look power spectra
from day 355 at both S- and X-band.  The signals can be seen about 13 minutes
before ingress on S-band and about 6 minutes before ingress on X-band.

     The S-band samples on day 355 are clipped; an FGAIN setting 2-3 dB higher
should have been used on the RSR.

     Both S-band and X-band samples are about 10 dB too low in the data
collected on day 358.  FGAIN could have been set 10 dB lower on both
channels.

     The X-band data on day 358 drift in amplitude by about 2 dB prior to
ingress - as though there were attenuation by rain.  The S-band data appear
to be unaffected; in fact, they may be slightly stronger when the X-band
signal is weakest.