MTA Monitoring Report 9/22/00 - 9/29/00

Archive of all weekly reports

Archive of Monthly reports

Radiation

Quiet

CTI trend

Average of ACIS-I CCDs (MnKa) slope 2.430e-8 CTI/day Detrended slope 1.374e-8 CTI/day

ACIS Focal Temperature

For this period, there were 3 peaks. 
       Day (DOY)       Temp (C)        Width (DAY)
	265.5		-111.9		0.48
	268.2		-113.4		0.40
	270.8		-113.6		0.46

MTA Problem Tracking

No new or reopened problems were reported in this period. Following msids are still coming:
2PRBSCR CIUB5V CIUB15V C28VMONB AIOBP5CV CUSOB28V 5EHSE400
AWD1TQI AWD2TQI AWD3TQI AWD4TQI AWD5TQI AWD6TQI

SIM Movement

6 TSC moves this period
average time/step 0.00139 s
nominal Max Pulse Width Modulation for each move

Telemetry

9/23 FAMTRTEMP FA Motor Temp and BOXTEMP SEA Box Temperature venture into yellow (above 282)
9/25 CPCA15V +15V RCTU_PC A slightly into yellow (15.5)
9/25 LETG insertion 4MP5AV 4MP5BV 4MP28BV 4MP28AV
MCE Volt Monitors - red violations

9/25-28 HRC Operations
HRC Electronics red violations
IMHBLV Imaging Bot & Top MCP HV Monitor
IMHVLV Imaging Bot MCP HV Monitor RSRFALV Range Switch Setting
SPHBLV Spect Bot & Top MCP HV Monitor
SPHVLV Spect Bot MCP HV Monitor

Trending

Spacecraft Electronics A, CUSOA28V (+28V USO A) jumped from steady 23.85 to steady 24.5 for the last month or so. We need to see if this continnues now that eclipses are done.

Recent Observations

The ACA Problem is in the specified handling of guide star positional errors. This issue in not signifcant to the final product and so is being worked at low priority. 

OBSID   DETECTOR        GRATING TARGET          ANALYSIS         ACA
-----------------------------------------------------------------------
897 	ACIS-S 		NONE	ABELL 4059 	OK		OK
1039	ACIS-S		NONE	N23 		OK		OK
744	ACIS-I		NONE 	VELA BULLET D 	OK		OK
854 	ACIS-I 		NONE 	BAL2359-1241	OK 		Problem
743	ACIS-I 		NONE 	VELA BUL. D 	OK		OK
606	ACIS-I		NONE 	IC 348 		OK		OK
313 	ACIS-I 		NONE 	M31 TRANSIENT 	OK		Problem
115	ACIS-I 		NONE	TYCHO SNR	OK		Problem