MTA Monitoring Report 03/28/03 - 04/03/03

Quiet

Detrended CTI

CTI analysis is now computed with "detrending":
Detrend CTI = Measured CTI + S3 amplitude reject rate * Detrend factor.

Average of ACIS-I CCDs (MnKa) slope 8.633e-9 CTI/day
Detrended slope 8.863e-9 CTI/day

ACIS Warm Pixels

	CCD0	CCD3	CCD5	CCD6	CCD7	CCD8	CCD9
New this week/ Reappeared	(1024,40)
Previously reported - still observed			(226,565),(357,303) (369,376),(341,427) (383,586),(607,281) (669,577)	(360,249) (776,501)			(150,374) (825,292)
Previously reported - not observed during this period						(587,544)
Flickering pixels		(811,637)	(109,1),(263,317) (352,544),(367,511)		(199,678)	(62,482) (1024,454),(1024,455) (1024,455)
Warm column candidates

ACIS Focal Plane Temperature

For this period, 4 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
086.75	-118.41	0.34
087.09	-112.11	0.49
089.63	-118.25	0.36
092.38	-114.05	0.89

SIM Movements

7 TSC moves this period
weekly average time/step 0.00137 s
mission average time/step 0.00136 s

Telemetry

blue cells

here

MSID	03/28	03/29	03/30	03/31	04/01	04/02	04/03	yellow limits (lower) upper	red limits (lower) upper	Units	Description
1CRAT						152.40		(143.16) 148.16	(131.16) 183.16	K	COLD RADIATOR TEMP. A
1CRBT						152.40		(143.16) 148.16	(131.16) 183.16	K	COLD RADIATOR TEMP. B
1DPAMYT	287.35							(274.16) 287.16	(235.66) 313.66	K	DPA -Y PANEL TEMP
5EPHINT						300.25	300.25	(261.0) 300.0	(258.0) 303.0	K	EPHIN TEMP
HKBBIASLEAKI						0.54	0.54	(-100.0) 0.5	(-200.0) 0.7	uA	EPHIN HOUSEKEEPING B-BIAS: LEAKAGE CURRENT (5EHSE500)
HKP27I				5.36	5.36	5.60	5.60	(3.66) 5.24	(3.46) 5.44	AMP	HK 27 Volts Rail - Current
AAOTH2MT	287.76			287.76	287.76		287.76	(286.50) 287.53	(286.40) 287.63	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)
AIRU1G1I							165.60	(-5.0) 150	(-10.0) 200.0	MAMP	IRU-1 GYRO #1 CURRENT
FAMTRTEMP			282.2			282.6		(260.0) 282.0	(255.0) 285.0	K	FA motor temperature
TSCIUSF1			351.27			351.27		(230.2) 346.9	(227.4) 349.7	K	SC-IUS FITTING-1 TEMP
TSCIUSF8			349.70			349.70		(230.2) 346.9	(227.4) 349.7	K	SC-IUS FITTING-8 TEMP
TMZP_CNT						327.66		(237.4) 327.4	(227.4) 349.7	K	-Z PNL TEMP:CENTER
TFSSBKT1						335.56		(237.4) 333.0	(223.0) 348.0	K	FSS BRACKET-1 TEMP (+Y)
TFSSBKT2						333.98		(237.4) 333.0	(223.0) 348.0	K	FSS BRACKET-2 TEMP (-Y)
OOBTHR56				288.65	289.10	288.65	288.74	(281.9) 288.6	(250.2) 308.0	K	RT 158: OBA CONE
Gratings		LETG IN		LETG OUT

A real-time procedure was completed on Mar 30 to perform a manual unload of momentum using thrusters A-1 (100%), A-2 and A-3. The unload duration was longer than expected for nominal thruster performance and consistent with prior anomalous unloads. A software patch was uplinked to allow collection of high sample rate telemetry of the bus current, and the data are under analysis.

The Gyro-1 current in the Inertial Reference Unit (IRU-1) was observed above its yellow limit level (150 mA) during a pass on April 3. The level remained high on the subsequent pass and engineering assessment by the design engineers and vendor is underway.

Recent Observations

"Prob" means that there was probably bad time data included in the manual runs. This will be corrected in future processing.

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
3598-3657 4219-4281	ACIS-I	NONE	NOAO FIELD	OK	OK
4432	ACIS-S	LETG	H2650	TOO /Grat	OK

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AOGBIAS1	-2.760e-06	1.859e-08	2.029e-07	-4.561e-07	RADPS	GYRO DRIFT RATE ESTIMATE (ROLL)
AOGBIAS2	1.764e-06	6.898e-09	-6.951e-08	2.278e-07	RADPS	GYRO DRIFT RATE ESTIMATE (PITCH)
AOGBIAS3	2.165e-06	7.066e-09	5.038e-08	2.140e-07	RADPS	GYRO DRIFT RATE ESTIMATE (YAW)

MUPS - Quarterly

Previous Quarter
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
PM1THV1T	1.233e+02	1.566e+01	2.376e+01	-1.373e+03	F	MUPS 1 THRUSTER VALVE 01 TEMP
PM1THV2T	1.249e+02	1.359e+01	1.960e+01	-1.239e+03	F	MUPS 1 THRUSTER VALVE 02 TEMP
PM2THV1T	1.278e+02	1.887e+01	1.967e+01	-1.820e+03	F	MUPS 2 THRUSTER VALVE 01 TEMP
PM2THV2T	1.289e+02	1.746e+01	2.111e+01	-1.528e+03	F	MUPS 2 THRUSTER VALVE 02 TEMP
PMTANKP	2.860e+02	9.090e-01	-3.184e+00	2.246e+01	PSIA	MUPS TANK PRESSURE
TRSPMTPC	5.000e+01	9.363e+00	1.889e+01	-1.100e+03	F	RAD SHR PNL TEMP:TTWN MUPS AND PCAD


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
AACH1T	2.875e+02	3.135e-01	2.068e-01	-1.089e-01	K	AC HOUSING TEMP (ACH1)
AAOTAPMT	2.869e+02	2.971e-01	1.976e-01	-7.878e-02	K	AC OPT TEL ASSY PRIMARY MIRROR TEMP
AAOTH2MT	2.872e+02	3.042e-01	2.048e-01	-8.714e-02	K	AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)


MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR43	2.931e+02	3.628e-02	2.378e-02	-2.566e-02	K	RT 134: PERISCOPE
OOBAGRD3	9.600e-01	3.070e-02	-2.167e-02	2.030e-02	K	RT 505 TO RT 504: PERISCOPE GRADIENT