MTA Monitoring Report 03/22/02 - 03/28/02

Archive of monthly reports

Radiation

Although some effects from M1.6 flare from the last week were observed, no radiation warning was issued during this period.

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.113e-8 CTI/day
Detrended slope 1.086e-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					(515,2) (1022,4)
Previously reported - still observed	(995,200)	(483,816)	(811,637)	(227,467)	(1-3,775-1024) (262,565) (232-245,313) (509,spurious rows) (510-511,775-1024) (512,775) (513,776-1024) (514,786) (514,850) (514,871) (514,940) (607,281) (1022,166)	(360,249) (766,501)	(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) (1021,1) (1021,198) (1021,408) (1021,684) (1022,775)	(62,482) (587,544) (952,1)	(150,373)
Previously reported - not observed during this period

ACIS Focal Plane Temperature

Day (DOY)	Temp (C)	Width (Days)
81.46	-118.09	1.18	very flat and wide
84.55	-109.85	0.42
87.15	-112.44	0.35

SIM Movements

Telemetry

HETG retraction
HETG insertion

1DPPWRB (DPA POWER B): yellow warning. Min: ~7 (lower yellow limit: 18.2)
HETG retraction

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 157.2 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 157.2 (upper yellow limit: 148.16)

1DPPWRB (DPA POWER B): yellow warning. Min: ~7 (lower yellow limit: 18.2)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: ~282.7 (upper yellow limit: 282.0)
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)
HETG retraction

1CRAT (COLD RADIATOR TEMP. A): yellow warning. Max: 154.8 (upper yellow limit: 148.16)
1CRBT (COLD RADIATOR TEMP. B): yellow warning. Max: 154.8 (upper yellow limit: 148.16)
HKBBIASLEAKI (HK B bias leakage current): yellow warning. Max: 0.56 (upper yellow limit: 0.5)
TEPHIN (EPHIN SENSOR HOUSING TEMP): yellow warning. Max: 300.55 (upper yellow limit: 300.2)
5EPHINT (EPHIN TEMP): yellow warning. Max: 300.67 (upper yellow limit: 300)
FAMTRTEMP (FA Motor Temperature): yellow warning. Max: ~282.7 (upper yellow limit: 282)
OOBTHR56 (RT 158: TFTE AFT CYLINDER): yellow warning. Max: 288.83 (upper yellow limit: 288.6)

IRUs

• Gyro Bias Drift
• Gyro Bias Drift Histogram

Recent Observations

All data reported below are based on manual processing. "Prob" means that there was probably bad time data included in the manual runs.

Trending

Trends last reported on Jan 10.

This is a Beta version of a new trending presentation which uses the MTA Databases. The databases currently contain values for the period July 2001 through March 2002. We are aware of several bugs which are being worked, so there is no need to report bugs, but comments on the new format are welcome to Scott or Brad.

Provided below are trending and limit predictions for various Chandra subsystems. For each msid the data are plotted and the mean, standard deviation, and first and second derivatives are calculated. Two plots are displayed for each msid. Plot 1 includes data points, a first degree fit line (first derivative), and a curve representing the data smoothed over a suitable period (10 or 30 days in most cases). Plot 2 shows the point-to-point slopes of the smoothed curve and a fit line (second derivative) to this data.

MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4HPOSARO	6.885e+01	2.594e+01	5.827e+00	1.402e+02	deg	HETG pot. angle (side A)
4HPOSBRO	6.943e+01	2.618e+01	6.024e+00	3.369e-13	deg	HETG pot. angle (side B)
4LPOSARO	6.921e+01	2.442e+01	-8.089e+00	1.781e-12	deg	LETG pot. angle (side A)
4LPOSBRO	6.812e+01	2.503e+01	-7.813e+00	-5.868e-13	deg	LETG pot. angle (side B)
4MP28AV	3.058e-05	2.934e-03	-6.790e-05	0.000e+00	VDC	MCE A: +28 VOLT MONITOR
4MP28BV	3.528e-05	7.870e-03	5.776e-05	0.000e+00	VDC	MCE B: +28 VOLT MONITOR
4MP5AV	2.960e-06	8.510e-04	-2.016e-05	0.000e+00	VDC	MCE A: +5 VOLT MONITOR
4MP5BV	2.373e-06	6.825e-04	-1.617e-05	0.000e+00	VDC	MCE B: +5 VOLT MONITOR
HETG Inserted
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4HPOSARO	6.337e+00	3.400e-03	2.019e-03	3.680e-01	deg	HETG pot. angle (side A)
4HPOSBRO	6.337e+00	3.754e-03	2.050e-03	0.000e+00	deg	HETG pot. angle (side B)
HETG Retracted
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4HPOSARO	7.965e+01	1.850e-01	-7.572e-01	2.673e-01	deg	HETG pot. angle (side A)
4HPOSBRO	8.027e+01	1.620e-01	-5.992e-01	0.000e+00	deg	HETG pot. angle (side B)
LETG Inserted
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4LPOSARO	7.097e+00	6.233e-02	-1.196e-01	4.758e+01	deg	LETG pot. angle (side A)
4LPOSBRO	4.462e+00	2.777e-03	-1.561e-03	0.000e+00	deg	LETG pot. angle (side B)
LETG Retracted
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4LPOSARO	7.878e+01	1.659e-01	-5.541e-01	1.338e+00	deg	LETG pot. angle (side A)
4LPOSBRO	7.799e+01	1.710e-02	-5.183e-02	0.000e+00	deg	LETG pot. angle (side B)
Gratings At Rest
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4MP28AV	0.000e+00	0.000e+00	0.000e+00	0.000e+00	VDC	MCE A: +28 VOLT MONITOR
4MP28BV	0.000e+00	0.000e+00	0.000e+00	0.000e+00	VDC	MCE B: +28 VOLT MONITOR
4MP5AV	0.000e+00	0.000e+00	0.000e+00	0.000e+00	VDC	MCE A: +5 VOLT MONITOR
4MP5BV	0.000e+00	0.000e+00	0.000e+00	0.000e+00	VDC	MCE B: +5 VOLT MONITOR
Gratings In Motion
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
4MP28AV	4.193e+00	7.390e-01	1.476e-01	-8.876e+00	VDC	MCE A: +28 VOLT MONITOR
4MP28BV	2.025e+01	3.181e+00	-1.717e+00	0.000e+00	VDC	MCE B: +28 VOLT MONITOR
4MP5AV	4.377e+00	4.431e-01	8.656e-02	0.000e+00	VDC	MCE A: +5 VOLT MONITOR
4MP5BV	3.695e+00	5.844e-01	-3.910e-01	0.000e+00	VDC	MCE B: +5 VOLT MONITOR
HETG Insertions
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
N_LONG_HI	1.000e+00	0.000e+00	5.067e-07	0.000e+00	num	Number of long moves
T_LONG_HI	1.549e+02	1.539e-01	-1.581e-01	0.000e+00	s	Duration of long moves
I4HPOSARO_HI	7.975e+01	2.051e-01	-3.831e-01	0.000e+00	deg	Initial pot. angle (side A)
I4HPOSBRO_HI	8.044e+01	1.863e-01	-3.364e-01	0.000e+00	deg	Initial pot. angle (side B)
F4HPOSARO_HI	6.395e+00	1.327e-01	-1.830e-01	0.000e+00	deg	Final pot. angle (side A)
F4HPOSBRO_HI	6.340e+00	0.000e+00	3.657e-06	0.000e+00	deg	Final pot. angle (side B)
EMF_MIN_LONG_HI	5.380e+00	1.075e-01	3.165e-02	0.000e+00	V	min EMF on long move
EMF_AVG_LONG_HI	5.803e+00	2.079e-02	-6.132e-03	0.000e+00	V	avg EMF on long move
EMF_MAX_LONG_HI	6.335e+00	9.091e-02	2.249e-02	0.000e+00	V	max EMF on long move
OBC_ERRS_HI	0.000e+00	0.000e+00	0.000e+00	0.000e+00	num	obc errors
HETG Retractions
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
N_LONG_HR	1.000e+00	0.000e+00	-2.441e-06	0.000e+00	num	Number of long moves
T_LONG_HR	1.549e+02	1.374e-01	-2.237e-01	0.000e+00	s	Duration of long moves
I4HPOSARO_HR	6.340e+00	0.000e+00	7.957e-06	0.000e+00	deg	Initial pot. angle (side A)
I4HPOSBRO_HR	6.340e+00	0.000e+00	-1.519e-05	0.000e+00	deg	Initial pot. angle (side B)
F4HPOSARO_HR	7.987e+01	1.396e-01	-1.951e-01	0.000e+00	deg	Final pot. angle (side A)
F4HPOSBRO_HR	8.053e+01	2.005e-01	-3.560e-01	0.000e+00	deg	Final pot. angle (side B)
EMF_MIN_LONG_HR	5.309e+00	1.315e-01	7.669e-02	0.000e+00	V	min EMF on long move
EMF_AVG_LONG_HR	5.791e+00	1.761e-02	5.133e-03	0.000e+00	V	avg EMF on long move
EMF_MAX_LONG_HR	6.375e+00	1.124e-01	1.467e-01	0.000e+00	V	max EMF on long move
OBC_ERRS_HR	0.000e+00	0.000e+00	0.000e+00	0.000e+00	num	obc errors
LETG Insertions
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
N_MOVES_LI	1.397e+01	2.680e+00	-9.077e-01	5.179e+00	num	Number of moves
N_LONG_LI	1.000e+00	0.000e+00	2.659e-06	0.000e+00	num	Number of long moves
T_LONG_LI	1.523e+02	3.111e-01	7.075e-02	0.000e+00	s	Duration of long moves
N_SHORT_LI	1.297e+01	2.680e+00	-9.077e-01	0.000e+00	num	Number of short moves
I4HPOSARO_LI	7.897e+01	2.224e-01	-4.066e-01	0.000e+00	deg	Initial pot. angle (side A)
I4HPOSBRO_LI	7.809e+01	1.843e-01	-3.412e-01	0.000e+00	deg	Initial pot. angle (side B)
F4HPOSARO_LI	7.264e+00	2.092e-01	-3.669e-01	0.000e+00	deg	Final pot. angle (side A)
F4HPOSBRO_LI	4.460e+00	0.000e+00	1.176e-05	0.000e+00	deg	Final pot. angle (side B)
EMF_MIN_LONG_LI	5.923e+00	6.182e-02	6.192e-02	0.000e+00	V	min EMF on long move
EMF_AVG_LONG_LI	6.372e+00	4.104e-03	-2.814e-03	0.000e+00	V	avg EMF on long move
EMF_MAX_LONG_LI	7.012e+00	3.392e-02	1.142e-02	0.000e+00	V	max EMF on long move
EMF_MIN_SHORT_LI	4.817e+00	6.425e-01	1.123e+00	0.000e+00	V	min EMF on short moves
EMF_AVG_SHORT_LI	5.496e+00	2.947e-01	4.356e-01	0.000e+00	V	avg EMF on short moves
EMF_MAX_SHORT_LI	6.135e+00	2.463e-01	-2.970e-01	0.000e+00	V	max EMF on short moves
OBC_ERRS_LI	4.588e+00	5.774e+00	-1.122e+01	-3.196e-05	num	obc errors
LETG Retractions
MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
N_MOVES_LR	7.686e+00	1.323e+00	-1.626e+00	4.157e+00	num	Number of moves
N_LONG_LR	1.000e+00	0.000e+00	-3.507e-07	0.000e+00	num	Number of long moves
T_LONG_LR	1.531e+02	1.298e-01	2.319e-01	0.000e+00	s	Duration of long moves
N_SHORT_LR	6.686e+00	1.323e+00	-1.626e+00	0.000e+00	num	Number of short moves
I4HPOSARO_LR	7.249e+00	2.071e-01	-3.385e-01	0.000e+00	deg	Initial pot. angle (side A)
I4HPOSBRO_LR	4.460e+00	0.000e+00	-1.481e-06	0.000e+00	deg	Initial pot. angle (side B)
F4HPOSARO_LR	7.914e+01	1.866e-01	-3.320e-01	0.000e+00	deg	Final pot. angle (side A)
F4HPOSBRO_LR	7.825e+01	1.619e-01	-2.229e-01	0.000e+00	deg	Final pot. angle (side B)
EMF_MIN_LONG_LR	5.920e+00	0.000e+00	1.128e-05	0.000e+00	V	min EMF on long move
EMF_AVG_LONG_LR	6.354e+00	4.851e-03	7.403e-04	0.000e+00	V	avg EMF on long move
EMF_MAX_LONG_LR	7.008e+00	5.229e-02	2.414e-02	0.000e+00	V	max EMF on long move
EMF_MIN_SHORT_LR	4.859e+00	6.781e-01	1.070e+00	0.000e+00	V	min EMF on short moves
EMF_AVG_SHORT_LR	5.546e+00	2.033e-01	2.146e-01	0.000e+00	V	avg EMF on short moves
EMF_MAX_SHORT_LR	6.058e+00	2.061e-01	-2.839e-01	0.000e+00	V	max EMF on short moves
OBC_ERRS_LR	2.743e+00	2.737e+00	-5.126e+00	2.490e-06	num	obc errors