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                @    MTA Monitoring Report 3/9/00 - 3/16/00     @
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Two new problems are reported to mta problem traker this week. It seems that
they are related to the spike observered subbatt on 3/15. 


        *************** MTA Problem Tracking. *****************

NEW
---
MSID            First   Recent  Pri     Occ     Scientist

EOESAC2C	3/16     3/16     4       4        swolk
EOESAC1C	3/16     3/16     4       3        swolk

REOPENED
--------
MSID            First   Recent  Pri     Occ     Scientist

AOSAILLM        2/18     3/16     4       11       aldcroft
EB2DI  		2/17     3/16     4       13       swolk
EB3DI   	2/17     3/16     4       10       swolk
ESAMYI  	2/17     3/16     4       15       swolk
ESAPYI  	2/17     3/16     4       57       swolk
AOPSAMUL	2/17     3/16     3       10       aldcroft

NOT NEW BUT KEEP COMING
EB1DI, EPOVSPR, EB3V, 2PRBSCR, AWD6TQI, 2CE00ATM,2CE01ATM, SEHSE400,
AWD5TQI, AWD4TQI,AOFUNLST, AOVAMPWR, EB3CI, 3B1CI, EB2CI, AWD3TQI, AOACHIBK


                ******** Trending  ***********

* ACIS Theraml: some up or down jumps are observed 
* ACIS Electronics: same V-shape upturn trend continues
* EPIN Temp & voltage: upward trend continue for many of msids
* HRMA Struts: among hrma, struts msids show strong trends
* HRMA  TFTE: this group shows strong trends
* ACA Thermal: upward trend continue
* PCAD Gyro rate:AOSUNEC* clear sin shape trend continue
* Spacecrat Temp: many msid shows upward trend; some of them show clear U shape recently
* Spacecarft Elec: OHRMAPWR is coming down (reverse U shape)
* OBA/HRMA Thermal: mamy msids show clear upward trend, but some of them start showing 
		    downward turn recently


                ************ CTI trend *************

In general, no significant changes observed. One possible variations are shown
up on CCD 7 Al K alpha. It seems variations are stronger than before. 


                *********** ACIS Focal Temperature ********

After the last week's jump, it is steady around -120 C.


                *************  Telemetry ***********
HIGHLIGHTS:


EOEB1DIC (BATTERY 1 DISCHARGE) had a huge spike on beginning of 3/15. Similar
spikes are seens many of subbatt msids. It seems that the duration was too
short to get reported to Problem Traker.

On 3/11, one large jump into red zone was observed on many msid on HRMA group.
Since the time of the jump was at the same time, it seems that this is due
to software grich rather than real. This types of jumps are observed every
few days (e.g. 3/16).

As before, many of HRMA msids violate red warnings, but many of them are
due to mta limits. We are planning to update the limit database soon. However,
some of the HRMA TFTE msids have upward trend, we many need to keep eyes on
HTFTEGRD6 nad HTFTEGRD9 of the group.

HAFTBGRD1 and HAFTBGRD3 of HRMA Aft Bulkhead, HCONEGRD36 and HCONEGRD44 of 
OBA Cone, and HSSTRTGRD2 and HSSTRTGRD4 of Spacecraft Struts  have large 
movement thoughout the periods.


                ************* MTA software  ***********

* ACIS focal plane plot bugs are fixed. It looks much better than before.
* MTA state change reports have some problem; currently checking causes.