MTA Monitoring Report 08/09/02 - 08/15/02

Archive of monthly reports

Radiation

Unsettled due to activity from large sunspot #69. No radiation warnings were issued during this period, but bears watching.

Detrended CTI

CTI analysis is now computed with "detrending" derived from reject counters for all imaging CCDs

Average of ACIS-I CCDs (MnKa) slope 1.044e-8 CTI/day
Detrended slope 1.027e-8 CTI/day

ACIS Warm Pixels

The following pixels consistently showed a bias level more than 5 sigma away the chip's mean level during this period.
We suspect some of the recurring bad pixels may be due to biases which are taken just after perigee, when the focal plane is somewhat warm. For more information see the link above and MTA monthly reports.

	CCD0	CCD2	CCD3	CCD4	CCD5	CCD6	CCD7	CCD8	CCD9
New this week/ Reappeared
Previously reported - still observed			(811,637)	(227,467)	(1-3,775-1024) (4,839)(4,846) (4,856) (226,565) (232-246,313) (508,1)(508,6) (509,spurious rows) (510-511,775-1024) (512,775)(513,776-1024) (514,794),(514,862) (514,868),(514,894) (514,915),(514,934)(514,967) (514,971),(514,976) (515,1)(515,3-5) (515,7-8)(515,15) (515,18-19)(515,548) (607,281)(1022,166)	(360,249)	(1-3,1-114) (1-3,775-1024) (4,spurious rows) (509,spurious rows) (510-511,775-1024) (512,775) (513-515,775-1024) (516,spurious rows) (1021,485)(1021,578) (1021,581-582)(1021,588) (1022,775)	(62,482) (541,1)	(150,373)
Previously reported - not observed during this period					(514,895)

ACIS Focal Plane Temperature

Day (DOY)	Temp (C)	Width (Days)
222.13	-114.22	0.51
224.82	-115.83	0.42

SIM Movements

Telemetry

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 152.4 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 152.4 (upper yellow limit: 148.16)
HKBBIASLEAKI (HK B bias leakage current): yellow warning. Max: 0.55 (upper yellow limit: 0.50)
5EPHINT (EPHIN TEMP): yellow warning. Max: 300.25 (upper yellow limit: 300.0)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 300.55 (upper yellow limit: 300.2)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 282.6 (upper yellow limit: 282.0)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.74 (upper yellow limit: 288.6)
Eclipse:
TSAPYT (+Y WING SOLAR ARRAY TEMP): yellow warning. Min: 304.78 (lower yellow limit: 311.10)
TSAMYT (-Y WING SOLAR ARRAY TEMP): yellow warning. Min: 304.78 (lower yellow limit: 311.10)
EPOVSPR (O/V SENSOR PRI): red warning. Max: 1.0 (upper red limit: 0.9)

HKBBIASLEAKI (HK B bias leakage current): yellow warning. Max: 0.60 (upper yellow limit: 0.50)
5EPHINT (EPHIN TEMP): yellow warning. Max: 301.10 (upper yellow limit: 300.0)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 301.06 (upper yellow limit: 300.2)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 282.2 (upper yellow limit: 282.0)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.65 (upper yellow limit: 288.6)

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 150.0 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 150.0 (upper yellow limit: 148.16)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 282.6 (upper yellow limit: 282.0)
Eclipse:
TSAPYT (+Y WING SOLAR ARRAY TEMP): yellow warning. Min: 304.78 (lower yellow limit: 311.10)
TSAMYT (-Y WING SOLAR ARRAY TEMP): yellow warning. Min: 304.78 (lower yellow limit: 311.10)
EPOVSPR (O/V SENSOR PRI): red warning. Max: 1.0 (upper red limit: 0.9)

FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 284.2 (upper yellow limit: 282.0)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): yellow warning. Max: 348.12 (upper yellow limit: 346.9)
TFSSBKT1 (FSS BRACKET-1 TEMP (+Y)): yellow warning. Max: 333.98 (upper yellow limit: 333.0)
HETG Insertion

Eclipse:
TSAPYT (+Y WING SOLAR ARRAY TEMP): yellow warning. Min: 304.78 (lower yellow limit: 311.10)
TSAMYT (-Y WING SOLAR ARRAY TEMP): yellow warning. Min: 304.78 (lower yellow limit: 311.10)
EPOVSPR (O/V SENSOR PRI): red warning. Max: 1.0 (upper red limit: 0.9)

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 152.4 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 152.4 (upper yellow limit: 148.16)
FAMTRTEMP (FA Motor Temperature): red warning. Max: 286.65 (upper red limit: 285.0)
HETG Retraction

IRUs

• Gyro Bias Drift
• Gyro Bias Drift Histogram

Recent Observations

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

Trending

Trends last reported on May 30.
Only the most interesting or representative msids are shown below. For a full listing choose the bulletted link.

• OBA Heaters

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OOBTHR39	2.850e+02	2.267e-01	1.647e-01	2.215e-01	K	RT 61: TFTE CONE
OOBTHR52	2.850e+02	1.035e+00	6.353e-01	7.372e-01	K	RT 78: S/C STRUT
OOBTHR56	2.875e+02	9.032e-01	6.561e-01	1.011e+00	K	RT 158: OBA CONE
OOBTHR62	2.837e+02	6.401e-02	3.252e-02	2.218e-02	K	RT 155: OBA FWD BULKHEAD



• OBA Gradients

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OOBAGRD1	9.510e+02	0.000e+00	0.000e+00	0.000e+00	CNT	IP INTERNAL CALIBRATION OBA GM CH. 0
OOBAGRD2	7.760e+02	0.000e+00	0.000e+00	0.000e+00	CNT	IP INTERNAL CALIBRATION OBA GM CH. 1
OOBAGRD4	6.009e+02	9.181e-02	-6.545e-02	-7.492e-02	CNT	IP INTERNAL CALIBRATION OBA GM CH. 3
OOBAGRD5	4.220e+02	0.000e+00	0.000e+00	0.000e+00	CNT	IP INTERNAL CALIBRATION OBA GM CH. 4
OOBAGRD7	2.440e+02	0.000e+00	0.000e+00	0.000e+00	CNT	IP INTERNAL CALIBRATION OBA GM CH. 6
OOBAGRD8	6.300e+01	0.000e+00	0.000e+00	0.000e+00	CNT	IP INTERNAL CALIBRATION OBA GM CH. 7



• HRMA Heaters

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR38	2.873e+02	1.439e-01	7.712e-02	2.595e-02	K	RT 120: HRMA AFT COLLIMATOR OUTER CYLINDER
OHRTHR40	2.940e+02	2.537e-02	-7.168e-04	2.865e-02	K	RT 124: HRMA MOUNT
OHRTHR44	2.953e+02	1.374e-02	4.200e-03	-1.056e-02	K	RT 1: HRMA FORWARD APERTURE PLATE
OHRTHR47	2.953e+02	1.570e-02	-1.472e-03	-4.571e-03	K	RT 10: HRMA PRECOLLIMATOR PLATE 10
OHRTHR49	2.947e+02	7.084e-03	2.879e-03	6.872e-03	K	RT 11: HRMA AFT HEATER PLATE
OHRTHR50	2.941e+02	1.528e-02	-1.067e-04	-1.545e-03	K	RT 16: HRMA MOUNT
OHRTHR52	2.942e+02	5.265e-03	6.229e-04	-2.660e-03	K	RT 100: HRMA CAP
OHRTHR59	2.953e+02	1.452e-02	-5.903e-03	-2.914e-02	K	RT 119: HRMA PRECOLLIMATOR PLATE 10



• HRMA Gradients

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRMGRD3	3.562e-02	6.379e-03	-2.310e-04	2.474e-03	K	RT 500 TO RT 502: CAP GRADIENT MONITOR
OHRMGRD6	-1.769e-02	3.409e-03	9.510e-05	2.985e-03	K	RT 503 TO RT 501: CAP GRADIENT MONITOR