PDS_VERSION          = PDS3
RECORD_TYPE          = STREAM
OBJECT               = TEXT
PUBLICATION_DATE       = 1997-04-15
NOTE                   = "MGS RST Instrument Health Report HEA7105B.TXT"
END_OBJECT           = TEXT
END


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

     Because we are beginning upgrade of the SOPC to SunOS 4.1.4 this
afternoon, normally scheduled queries and our health report tomorrow may be
delayed.


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

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

     GWE data collection on 97/104 was inadvertently omitted from the earlier
report HEA7105A.TXT.

     GWE data were collected at DSS 15 for 103 minutes.  Specifics are noted
in the table below:

YYYY/DDD DSS        DSP        SAMP  BW   DSP  BIT  TRK  REC  RECS RECS FIRST
               START    STOP   RATE      MODE RESN MODE  LEN       MSSG  SNR
-------- --- -------- -------- ---- ---- ---- ---- ---- ---- ----- ---- -----
1997/104  15 02:17:00 04:00:00  200  100   1    8   2-W  566 12360   0  ~43.

     GWE collection was supposed to continue at DSS 45 over the time interval
07:15-13:15 but operators could not get the DSP into the link.

  Anomalies
  ---------

     DSS 15 data have a random amplitude modulation with characteristic times
of 6-12 minutes and amplitudes no more than 0.5 dB peak-to-peak.  Superimposed
is a much higher frequency and lower amplitude component (approximately 12 sec
and no more than 0.2 dB peak-to-peak (Figure 1).

     There were 36 POCA time tags out of order in this file.

     Failure to collect data at DSS 45 was noted in the previous section.

Figure Captions
===============

     HEA7105B.PS1. Power in raw data samples averaged over 1 second intervals.
High frequency oscillation with period of about 12 seconds is visible in this
plot superimposed on longer term, larger amplitude, and apparently more random
amplitude variation.  Spacecraft activity during GWE observations is
presumably at a minimum.


Figures
=======

     Plot(s) illustrate some of the points made in the text.  Each plot is
a PostScript file, created and printable on our SOPC.  For report text file
HEAydddC.TXT  Figure N will be labeled  HEAydddC.PSN  and sent as the N+1st
e-mail message of a set.  We assume that you can strip off the e-mail headers
and either display or print copies of the figures on a machine in your area.
People who have indicated that they cannot handle these files by e-mail are
not included in the e-mail distribution of figures.