MTA Monitoring Report 08/30/02 - 09/05/02

Archive of monthly reports

Radiation

A Kp alert was issued, no action necessary.
Date: Wed, 4 Sep 2002 03:37:05 -0400 (EDT)
ALERT!! Kp
A Radiation violation of the USAF Kp index has occured.
Value = 6.33 (dynamic limit: 6)

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 1.097e-8 CTI/day
Detrended slope 1.058e-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								(587,544)
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)(513,775-1024) (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

ACIS Focal Plane Temperature

Day (DOY)	Temp (C)	Width (Days)
243.31	-115.02	0.59
244.80	-119.06	0.82	broad mid-orbit rise
245.96	-116.32	0.51

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: 0.65 (upper yellow limit: 0.50)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 301.58 (upper yellow limit: 300.2)
5EPHINT (EPHIN TEMP): yellow warning. Max: 301.10 (upper yellow limit: 300.0)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.92 (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)
HKBBIASLEAKI (HK B bias leakage current): yellow warning. Max: 0.51 (upper yellow limit: 0.50)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.65 (upper yellow limit: 288.6)

FAMTRTEMP (FA Motor Temperature): yellow warning. Max: 284.2 (upper yellow limit: 282.0)
BOXTEMP (SEA Box Temperature ): yellow warning. Max: 292.15 (upper yellow limit: 292.0)
TSCIUSF1 (SC-IUS FITTING-1 TEMP): yellow warning. Max: 349.70 (upper yellow limit: 346.9)
TSCIUSF8 (SC-IUS FITTING-8 TEMP): yellow warning. Max: 348.12 (upper yellow limit: 346.9)
OOBTHR57 (RT 150: OBA AFT CONE): yellow warning. Max: 288.65 (upper yellow limit: 288.6)

HETG Insertion

HKBBIASLEAKI (HK B bias leakage current): red warning. Max: 0.72 (upper red limit: 0.70)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 301.58 (upper yellow limit: 300.2)
5EPHINT (EPHIN TEMP): yellow warning. Max: 301.53 (upper yellow limit: 300.0)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 289.01 (upper yellow limit: 288.6)

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)

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 Jun 20.
Only the most interesting or representative msids are shown below. For a full listing choose the bulletted link.

• ACIS Temperatures



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
1CRAT	1.465e+02	2.561e+00	-1.460e+00	8.303e-01	K	COLD RADIATOR TEMP. A
1CRBT	1.468e+02	2.844e+00	-1.487e+00	3.791e-01	K	COLD RADIATOR TEMP. B



• ACIS Electronics A



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
1DE28AVO	2.945e+01	3.982e-01	-1.703e-01	2.665e-01	V	DEA +28V INPUT A
1DEICACU	1.491e+00	4.252e-01	-3.356e-02	1.155e-01	AMP	DEA INPUT CURRENT A
1DEP3AVO	3.051e+01	1.224e-01	5.473e-02	-2.784e-02	V	DEA +28V ANALOG A
1DP28AVO	2.948e+01	3.969e-01	-1.708e-01	2.004e-01	V	DPA +28V INPUT A
1DPICACU	1.388e+00	4.131e-02	1.062e-02	-5.143e-03	AMP	DPA INPUT CURRENT A



• ACIS Electronics B



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
1DAHBCU	5.647e-01	3.008e-02	-1.432e-02	4.751e-03	AMP	DA HEATER CURRENT B
1DAHBVO	7.885e+00	4.521e-01	-2.415e-01	1.137e-01	V	DA HEATER VOLTAGE B
1DAHHBVO	2.919e+01	3.834e-01	-1.712e-01	2.784e-01	V	DA HOUSING HEATER INPUT VOLTAGE B
1DE28BVO	2.975e+01	3.850e-01	-1.741e-01	2.243e-01	V	DEA +28V INPUT B
1DEP3BVO	3.681e-01	3.206e-02	3.697e-03	-1.422e-02	V	DEA +28V ANALOG B
1DP28BVO	2.977e+01	3.831e-01	-1.751e-01	2.142e-01	V	DPA +28V INPUT B
1DPICBCU	1.190e+00	3.587e-02	6.968e-03	-2.103e-02	AMP	DPA INPUT CURRENT B



• ACIS Mechanisms



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
1HOPRAPR	-2.816e+00	1.927e-03	-5.709e-04	2.106e-04	Torr	DIFFERENTIAL HOUSING PRESSURE A
1HOPRBPR	-2.546e+00	0.000e+00	0.000e+00	0.000e+00	Torr	DIFFERENTIAL HOUSING PRESSURE B