MTA Monitoring Report 03/02/01 - 03/08/01

Quiet

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.995e-8 CTI/day
Detrended slope 1.460e-8 CTI/day

ACIS Focal Temperature

For this period there are 2 peaks.

       Day (DOY)       Temp (C)        Width (DAY)
	60.70           -116.0          0.55
	63.39           -111.0          0.79
        66.00           -111.9          0.34

The first two peaks have a shoulder at the razing side, and made the width much wider than usual.

MTA Problem Tracking

The following msids are still coming:
AOPSAMUL (ANG_MOM_UNLOAD S/W STATE)

SIM Movements

9 TSC moves this period
weekly average time/step 0.00138 s
mission average time/step 0.00139 s

Telemetry

3/6, 3/8 FAMTRTEMP - slightly into yellow (limit 282)
3/8 TSCIUSF1 (SC-IUS FITTING-1 TEMP) - slightly, briefly into yellow (limit 347)

Recent Observations

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

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
2050	ACIS-S	NONE	M31_2	OK	OK
2076	ACIS-I	NONE	NGC 3077	OK	OK
2239	ACIS-I	NONE	CDFS	OK	PROBLEM
2038	ACIS-S	NONE	NGC 3079	OK	OK
2134	ACIS-S	NONE	0802+103	OK	OK
2421	ACIS-I	NONE	HDF-N	OK	OK
1048	ACIS-S	NONE	GRB TOO 1	OK	OK
1969	ACIS-S	NONE	SN 1999EM	OK	OK
2047	ACIS-S	NONE	M31_1	OK	PROBLEM
999	HRC-I	NONE	NGC2516	OK	OK
1670	HRC-I	NONE	COMA	OK	OK

MSID	DESCRIPTION	COMMENTS
4MP5AV	MCE A: +5 VOLT MONITOR VDC	- min 0, max 5.02
4MP28AV	MCE A: +28 VOLT MONITOR	- min 0, max ~7.0 since DOM 300
4HPOSARO	Hetg Rotation Angle Position Monitor A	- min flat ~7, max slightly decreasing ~80
4LPOSARO	Letg Rotation Angle Position Monitor A	- min flat ~7, max slightly decreasing ~80

Grating Voltages and Rotation Angles Side B

MSID	DESCRIPTION	COMMENTS
4MP5BV	MCE B: +5 VOLT MONITOR VDC	- min 0, max 5.0
4MP28BV	MCE B: +28 VOLT MONITOR	- min 0, max 28.0
4HPOSBRO	Hetg Rotation Angle Position Monitor B	- min ~6, max slightly decreasing ~80.6
4LPOSBRO	Letg Rotation Angle Position Monitor B	- min ~4, max slightly decreasing ~78.3