MTA Monitoring Report 09/04/20 - 09/10/20

Archive of all weekly reports
Archive of monthly reports

Although we prefer to quote CTI values of the cleanest data (FT <= -119.7 C, int time > 7000sec), the data that fulfills these conditions are getting rare. We now quote CTI based on temperature corrected data for Focal plane temperature <= -118.5 C).

The unit is now CTI/year not CTI/day.

Average of ACIS-I CCDs (MnKa) slope:	5.748e-02 CTI/year	(1.575e-04 CTI/day)
Detrended slope:	6.114e-02 CTI/year	(1.675e-04 CTI/day)

ACIS Warm Pixels

We display all bad pixels that have showed up in past, and, if any, previously unknown bad pixels appeared in the last 14 days. We also list hot pixels (defined as 1000 above the average of bias background). Warm columns 509-514 are probably due to boundaries.

New definitions of warm pixels and flickering pixels (May 15, 2014). If a pixel displays the level beyond a threshold for more than 70% of the time in the past two weeks, the pixel is categorized as a "warm" pixel. If a pixel is above the threshold more than 30% of time but less than 70% of the time in the past two weeks, the pixel is categorized as a "flickering" pixel.

	CCD0	CCD1	CCD2	CCD3	CCD5	CCD6	CCD7	CCD8
Previously Unknown Bad Pixels
Current Warm Pixels							(335,412)
Flickering Warm Pixels	(154,9) (143,700) (692,141)	(787,181) (910,239) (802,665)	(726,537) (665,25) (526,66) (178,149)	(21,95) (144,50) (811,637) (753,344)		(670,387) (1000,214) (287,164)		(881,53) (197,241) (675,304) (139,109)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates					1022 510 512		1022 512
Flickering Warm column candidates

ACIS Focal Plane Temperature

For this period, 2 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
248.51	-102.22	0.71
251.22	-97.99	1.95

Weekly focal plane temperature with sun angle, earth angle, and altitude overplotted. Sun angle is the solar array angle, that is the angle between the sun and the optical axis (+X axis). The earth angle is the angle between earth and the ACIS radiator (+Z axis). Altitude varies from 34 kkm to 128 kkm.

SIM Movements

9 TSC moves this period

weekly average time/step	0.00134 s
mission average time/step	0.00136 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	09/04/20	09/05/20	09/06/20	09/07/20	09/08/20	09/09/20	09/10/20	yellow limits (lower) upper	red limits (lower) upper	Units	Description
TEP_PSU2	(263.69)	(263.69)	(263.69)	(263.69)	(263.69)	(263.69)	(263.69)	(283.15) 343.15	(264.15) 393.15	K	PSU-2 TEMP
TCM_TX1	(266.97)	(266.97)	(266.97)	(266.97)	(266.97)	(266.97)	(266.97)	(283.15) 348.15	(269.15) 404.15	K	TRANSPONDER-1 EXT BPL TEMP
TCM_PA2	(258.96)	(258.96)	(258.96)	(258.96)	(258.96)	(258.96)	(258.96)	(269.15) 348.15	(260.15) 413.15	K	RF POWER AMP-2 EXT BPL TEMP
TCM_PA1	(257.36)	(257.36)	(257.36)	(257.76)	(257.36)	(257.36)	(257.36)	(269.15) 348.15	(260.15) 413.15	K	RF POWER AMP-1 EXT BPL TEMP

IRUs

Gyro Bias Drift	Gyro Bias Drift Histogram

Recent Observations

There was No Observations in the Last Eight Days

MSID		Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
afsspc2v	on	0.009	0.001	3.51 +/- 0.20	(1.40+/-2.00)e-4	V	FSS POWER CONV 2 VOLTAGE
	off	5.659e-04	5.345e-04	0.01 +/- 0.14	(0.00+/-0.00)e0	V	FSS POWER CONV 2 VOLTAGE
airu2g1i	on	-0.194	0.009	(1.03+/-0.04)e2	-0.03 +/- 0.05	mA	IRU-2 GYRO
	off	-0.401	0.101	9.74 +/- 4.56	-0.18 +/- 0.39	mA	IRU-2 GYRO
airu2g2i	on	1.192	0.017	(1.08+/-0.09)e2	0.34 +/- 0.07	mA	IRU-2 GYRO
	off	-0.401	0.103	9.74 +/- 4.65	-0.12 +/- 0.35	mA	IRU-2 GYRO
airu2g2t	on	-0.380	0.015	(3.41+/-0.07)e2	(3.07+/-27.98)e-4	K	IRU-2 GYRO
	off	-0.191	0.060	(2.93+/-0.03)e2	-0.02 +/- 0.02	K	IRU-2 GYRO

Drift rate updates to gyros

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
aogyrct1	-3.251	0.751	8.86 +/- 400.17	-28.82 +/- 15.69	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 1
aogyrct2	0.804	0.381	2.12 +/- 203.41	15.13 +/- 10.29	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 2
aogyrct3	2.319	3.766	-10.77 +/- 2046.74	-5.23 +/- 60.09	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 3
aogyrct4	0.477	0.331	-2.30 +/- 176.68	-0.73 +/- 8.00	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 4

If you have any questions, please contact: swolk@head.cfa.harvard.edu

MTA Monitoring Report 09/04/20 - 09/10/20

Radiation

Detrended CTI