MTA Monitoring Report 04/23/21 - 04/29/21

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:	5.518e-02 CTI/year	(1.512e-04 CTI/day)
Detrended slope:	6.019e-02 CTI/year	(1.649e-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	(154,9) (143,700)	(802,665) (910,239)	(726,537) (526,66) (665,25) (178,149)	(811,637) (21,95)		(1000,214) (670,387)	(335,412)
Flickering Warm Pixels	(692,141)	(427,125)		(680,391)	(161,206) (669,577) (258,797) (233,227) (341,427) (369,376) (367,511) (357,303) (607,281) (263,317)	(287,164) (884,31)		(675,304) (197,241) (182,474) (881,53)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates					512 510 1022		512 1022
Flickering Warm column candidates

ACIS Focal Plane Temperature

For this period, 9 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
112.61	- -97.31	0.94
113.58	-113.89	0.67
114.35	-110.88	0.83
115.23	-103.20	0.76
115.83	-112.72	0.62
116.74	-112.92	0.92
117.43	-111.44	0.51
117.89	-111.75	0.24
118.51	-114.22	0.42

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	0.00133 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	04/23/21	04/24/21	04/25/21	04/26/21	04/27/21	04/28/21	04/29/21	yellow limits (lower) upper	red limits (lower) upper	Units	Description
ELBI					66.89			(20.0) 60.0	(13.0) 66.0	AMP	LOAD BUS CURRENT (HIGH RANGE)
OBADIAGRAD	4.14		4.08	4.16	4.33	4.06		(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
TSCTSF3		(268.43)	(268.06)		(268.06)			(278.15) 359.15	(269.15) 483.15	K	SC-TS FITTING -3 TEMP
IMHBLV					(0.00)			(126.0) 128.0	(125.0) 129.0	(2IMHBLV)	Imaging Bot & Top MCP HV Monitor
IMHVLV					(0.00)			(126.0) 128.0	(125.0) 129.0	(2IMHVLV)	Imaging Bot MCP HV Monitor
TCM_PA1						(259.69)	(259.69)	(269.15) 348.15	(260.15) 413.15	K	RF POWER AMP-1 EXT BPL TEMP
TCM_TX1					(268.79)	(267.70)	(267.70)	(283.15) 348.15	(269.15) 404.15	K	TRANSPONDER-1 EXT BPL TEMP
OBACONEAVG	302.38	301.64	301.21	302.83	303.06	303.22		(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP

IRUs

Gyro Bias Drift	Gyro Bias Drift Histogram

Recent Observations

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
23714	ACIS-7	NONE	MCG3-24-043	OK	OK
24603	ACIS-01236	NONE	A1795	OK	OK
24791	ACIS-56789	HETG	NGC 1365	OK/NA	OK
24431	ACIS-01237	NONE	PSR B2224+65	OK	OK
25012	ACIS-0123	NONE	ESO 321- G 014	OK	OK
24604	ACIS-01236	NONE	A1795	OK	OK
24795	ACIS-56789	HETG	NGC 1365	OK/NA	OK
23689	ACIS-7	NONE	IRAS11215-2806	OK	OK
24605	ACIS-0123	NONE	A1795	OK	OK
24606	ACIS-0123	NONE	A1795	OK	OK
24429	ACIS-123	NONE	PSR B2224+65	OK	OK
23465	HRC-I	NONE	M82 X-2	OK	OK
24607	ACIS-01236	NONE	A1795	OK	OK
24609	ACIS-23567	NONE	A1795	OK	OK
24352	ACIS-2367	NONE	3c 297	OK	OK
23050	ACIS-01237	NONE	G104.52+01.24	OK	OK
22946	HRC-S	LETG	H1821+643	OK/NA	OK
24608	ACIS-01236	NONE	A1795	OK	OK
25013	HRC-S	LETG	H1821+643	OK/NA	OK
24611	ACIS-23567	NONE	A1795	Missing	Missing
24610	ACIS-2567	NONE	A1795	OK	OK
23649	ACIS-7	NONE	QSO B1402+044	Missing	Missing
24692	ACIS-0123	NONE	2XRS J154634.6-171420	Missing	Missing
24789	ACIS-456789	HETG	NGC 1365	Missing/NA	Missing

MSID		Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
afsspc2v	on	0.008	0.001	3.51 +/- 0.19	(1.04+/-1.47)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	-0.279	0.014	(1.03+/-0.06)e2	-0.05 +/- 0.04	mA	IRU-2 GYRO
	off	-0.401	0.101	9.74 +/- 4.56	-0.17 +/- 0.37	mA	IRU-2 GYRO
airu2g2i	on	-0.445	0.060	(1.02+/-0.27)e2	0.28 +/- 0.07	mA	IRU-2 GYRO
	off	-0.401	0.103	9.74 +/- 4.65	-0.12 +/- 0.33	mA	IRU-2 GYRO
airu2g2t	on	-0.309	0.014	(3.41+/-0.06)e2	(1.23+/-22.80)e-4	K	IRU-2 GYRO
	off	-0.191	0.060	(2.93+/-0.03)e2	-0.03 +/- 0.02	K	IRU-2 GYRO

Drift rate updates to gyros

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
aogyrct1	-0.857	1.492	13.79 +/- 862.41	-24.07 +/- 15.02	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 1
aogyrct2	0.144	1.672	23.91 +/- 966.44	1.34 +/- 12.62	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 2
aogyrct3	4.456	4.771	-24.12 +/- 2758.39	-5.42 +/- 56.09	CNTS	ACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 3
aogyrct4	0.568	1.669	-32.36 +/- 964.71	-0.85 +/- 8.06	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 04/23/21 - 04/29/21

Radiation

Detrended CTI

ACIS Warm Pixels

ACIS Focal Plane Temperature

SIM Movements

Telemetry

IRUs

Recent Observations

Trending

IRU Temperatures and Voltages

Drift rate updates to gyros