MTA Monitoring Report 05/24/02 - 05/30/02

Archive of monthly reports

Radiation

Continued from last week:

SCS107 ran autonomously at 143:0958 UT.
Loads restarted at 144:1213 UT.
Lost science time: 94.5 ksec.
Obsid affected: 2943

Detrended CTI

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

Average of ACIS-I CCDs (MnKa) slope 1.055e-8 CTI/day
Detrended slope 1.003e-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	(995,200)	(483,816)	(811,637)	(227,467)	(1-3,775-1024) (226,565) (232-246,313) (509,spurious rows) (510-511,775-1024) (512,775)(513,776-1024) (514,780)(514,783) (514,786)(514,798-799) (514,803)(514,806-807) (514,818)(514,828) (514,850)(514,871) (514,940)(514,948) (515,1)(515,2) (607,281) (1022,4)(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,spurious rows) (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)
145.38	-115.67	0.20	preceded by small uptick
147.98	-115.02	0.31	preceded by small uptick
150.63	-112.60	0.38

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)
1CRATC (COLD RADIATOR TEMP. A): yellow warning. Max: -120.75 (upper yellow limit: -125.0)
1CRBTC (COLD RADIATOR TEMP. B): yellow warning. Max: -120.75 (upper yellow limit: -125.0)

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)
1CRATC (COLD RADIATOR TEMP. A): yellow warning. Max: -118.35 (upper yellow limit: -125.0)
1CRBTC (COLD RADIATOR TEMP. B): yellow warning. Max: -118.35 (upper yellow limit: -125.0)
HETG Insertion

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 Mar 14.
Only the most interesting or representative msids are shown below. For a full listing choose the bulletted links.

• OBA Heaters



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OOBTHR03	2.859e+02	5.734e-02	5.486e-02	1.007e-01	K	RT 26: HRMA STRUT
OOBTHR08	2.845e+02	1.672e-01	6.551e-02	-1.135e-02	K	RT 31: OBA CONE
OOBTHR31	2.847e+02	1.703e+00	5.154e-02	-6.081e+00	K	RT 53: OBA AFT BULKHEAD
OOBTHR39	2.850e+02	2.022e-01	1.671e-01	-4.300e-02	K	RT 61: TFTE CONE
OOBTHR46	2.843e+02	3.386e-01	2.428e-01	2.484e-01	K	RT 68: TFTE COVER
OOBTHR51	2.847e+02	9.511e-01	6.745e-01	-1.989e+00	K	RT 77: S/C STRUT
OOBTHR56	2.876e+02	8.052e-01	6.569e-01	4.272e-01	K	RT 158: OBA CONE
OOBTHR62	2.837e+02	5.581e-02	3.602e-02	6.492e-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
OOBAGRD4	6.009e+02	7.254e-02	-5.022e-02	-9.151e-02	CNT	IP INTERNAL CALIBRATION OBA GM CH. 3



• HRMA Heaters



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRTHR02	2.953e+02	1.298e-02	-3.579e-03	1.226e-02	K	RT 2: HRMA FORWARD APERTURE PLATE
OHRTHR10	2.942e+02	5.039e-03	5.786e-03	-2.511e-03	K	RT 107: HRMA P1 FLEXURE
OHRTHR21	2.953e+02	1.468e-02	1.325e-02	3.971e-03	K	RT 3: HRMA FOWARD APERTURE PLATE
OHRTHR24	2.947e+02	6.762e-03	-2.788e-03	7.448e-04	K	RT 12: HRMA AFT HEATER PLATE



• HRMA Gradients



MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
OHRMGRD3	3.560e-02	6.373e-03	-3.628e-04	1.294e-03	K	RT 500 TO RT 502: CAP GRADIENT MONITOR
OHRMGRD6	-1.766e-02	3.420e-03	4.176e-05	-1.847e-03	K	RT 503 TO RT 501: CAP GRADIENT MONITOR