PDS_VERSION          = PDS3
RECORD_TYPE          = STREAM
OBJECT               = TEXT
PUBLICATION_DATE       = 1996-12-20
NOTE                   = "MGS RST Instrument Health Report #24"
END_OBJECT           = TEXT
END



Engineering Data
================

Engineering Data Statistical Summary from QUERY2PLOT:
First SCET: 1996-354T07:06:24.085
Last SCET:  1996-354T19:49:25.000
CHANNL    TITLE      EU      EU      EU      EU    DN  DN    DN     DN RECRDS
                    LOW    MEDIAN AVERAGE   HIGH  LOW MED  AVERAGE  HI
------ ---------- ------- ------- ------- ------- --- --- -------- --- ------
L-0200 USO_REG_V   4.0600  4.0800  4.0795  4.1000 203 204 203.9744 205  6408
L-0201 USO_OVEN_V  2.5800  2.6200  2.6153  2.6400 129 131 130.7642 132  6408
T-0315 USO_T      21.4383 23.4724 23.4180 24.6548 141 134 134.1945 130  1697

     Values very consistent with values seen since Launch.  But normal 100-
minute oscillation in temperature appeared to have been interrupted at the
beginning (07:00-10:00), suggesting some spacecraft maneuvers -- or at least
a change in the rotation on DOY 354.


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

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

     John Armstrong alerted us to availability of some one-way open-loop
data from DSS 25 on 1996/348; we were able to obtain this via ftp from him
and are in the process of analyzing it.  The six hour observation is our
longest, by far, in one-way mode.

YYYY/DDD DSS        DSP        SAMP  BW   DSP  BIT  TRK  REC  RECS RECS FIRST
               START    STOP   RATE      MODE RESN MODE  LEN       MSSG  SNR
-------- --- -------- -------- ---- ---- ---- ---- ---- ---- ----- ---- -----
1996/348  25 08:44:54 14:45:55  200   82   1    8  1-wy  566 43323    0 35.02

  Data Anomalies
  --------------

     Prime FEA recorded in the header from DSS 25 is 10 rather than 25.

     John noted that the largest signal variations occur repeatedly every
100 minutes during the time when the signal is weakest.  We had noticed
the modulations before but, because our longest interval had been 2 hrs,
did not identify the periodicity.

     Note that there are NO missing records in this 6 hr stretch.  John
said only that he got the data from Trish Priest; we do not know how she
obtained it.

     John reported MANY POCA errors; we should have a report on those
after we begin our frequency analysis.