MTA Monitoring Report 02/13/26 - 02/19/26

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:	5.214e-02 CTI/year	(1.428e-04 CTI/day)
Detrended slope:	4.865e-02 CTI/year	(1.333e-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		(865,611)
Current Warm Pixels	(786,117)	(910,239)	(104,31) (837,378) (726,537) (99,899) (803,225) (178,149) (526,66)	(811,637) (680,391) (21,95)		(849,169)	(335,412)
Flickering Warm Pixels	(283,278) (171,937)	(427,125) (370,70) (787,181) (802,665)	(665,25)	(394,80) (617,159) (931,553)	(263,317) (369,376) (161,206) (367,511) (728,340) (282,385) (357,303) (669,577) (233,102) (233,227)	(670,387) (1000,214)		(675,304) (136,65) (447,769) (838,239) (333,466) (295,978) (275,393) (881,53) (597,187)
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, 8 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
042.41	-105.17	0.45
043.53	-112.44	0.56
044.11	-111.63	0.20
045.05	-108.01	0.95
045.59	-106.55	0.49
046.02	-109.00	0.39
046.45	-106.44	0.51
046.87	-106.77	1.33

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

15 TSC moves this period

weekly average time/step	0.00136 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	02/13/26	02/14/26	02/15/26	02/16/26	02/17/26	02/18/26	02/19/26	yellow limits (lower) upper	red limits (lower) upper	Units	Description
AFTBLKHDT	308.69				308.81	310.05		(260.2) 303.0	(250.2) 308.0	TEMP	AFT BULKHEAD TEMP
AWD1TQI	(-3.39)			(-3.39)			(-3.39)	(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 1 TORQUE CURRENT
AWD4TQI					(-3.43)			(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 4 TORQUE CURRENT
AWD6TQI	(-3.43)			(-3.43)			(-3.43)	(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 6 TORQUE CURRENT
CTXBPWR	(0.00)	(0.00)		(0.00)			(0.00)	(36.12) 37.0	(36.0) 38.0	DBM	TRANSMITTER B OUTPUT POWER
ESAMYI		(0.06)						(5.63) 30.15	(5.3) 33.0	AMP	S/A -Y CURRENT
ESAPYI		(0.14)						(5.54) 30.15	(5.2) 33.0	AMP	S/A +Y CURRENT
IMHBLV					(85.00)			(126.0) 128.0	(125.0) 129.0	(2IMHBLV)	Imaging Bot & Top MCP HV Monitor
MZOBACONE	315.44	309.39			314.59		313.42	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG	306.55	301.79			305.31		305.26	(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBACONEAVG		306.88	303.13	303.82				(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP
OBADIAGRAD	4.78	4.26	4.78	4.95	4.95	4.67	4.87	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
PZOBACONE	311.36				310.35	312.11	309.86	(260.2) 303.0	(250.2) 308.0	CONE	+Z SIDE OBA CONE
TCYZ_RW6			(277.17)					(288.15) 363.15	(278.15) 404.15	K	RWA -6 TEMP (RWA CRNR COMP)
TFTERANGE	48.55	45.84	45.94	46.03			47.56	(16.7) 37.5	(11.1) 45.0	K	TFTE VENT/RAD TEMP

IRUs

Gyro Bias Drift	Gyro Bias Drift Histogram

Recent Observations

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
32150	ACIS-67	NONE	SDSSJ093034.43+204416.6	OK	OK
30298	ACIS-0123	NONE	Perseus cluster	OK	OK
30302	ACIS-01236	NONE	Perseus cluster	OK	OK
29827	ACIS-2367	NONE	SN 1986J	OK	OK
32151	ACIS-67	NONE	SDSSJ092313.77+150221.9	OK	OK
32155	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
32158	ACIS-3678	NONE	GRB 221009A	OK	OK
30238	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
30248	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
32159	ACIS-3678	NONE	GRB 221009A	OK	OK
32157	ACIS-0123	NONE	G292.0+1.8	OK	OK
29861	ACIS-3678	NONE	AM0322-374	OK	OK
32156	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
32160	ACIS-3678	NONE	GRB 221009A	OK	OK
32164	ACIS-3678	NONE	AM0322-374	OK	OK
30069	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
30306	ACIS-01236	NONE	Perseus cluster	OK	OK
31895	HRC-I	NONE	ArLac	OK	OK
31994	ACIS-3678	NONE	NGC3626	OK	OK
30422	ACIS-0123	NONE	Abell 2255	OK	OK
26972	HRC-I	NONE	70 OPH	OK	OK
32171	ACIS-3678	NONE	NGC3626	OK	OK
31008	ACIS-3678	NONE	NGC4207	OK	OK
30425	ACIS-0123	NONE	Abell 2255	OK	OK
32169	ACIS-0123	NONE	Abell 2255	OK	OK
31995	ACIS-3678	NONE	NGC3626	OK	OK
31121	ACIS-67	NONE	ZTF J1905+3134	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
5eiot	0.082	0.021	(3.37+/-0.17)e2	0.13 +/- 0.35	K	EIO TEMP
5ephint	2.143	0.009	(3.22+/-0.19)e2	-0.08 +/- 0.16	K	EPHIN TEMP
teio	1.471	0.018	(3.18+/-0.19)e2	0.11 +/- 0.36	K	EPHIN ELECTRONICS HOUSING TEMP
tephin	2.124	0.009	(3.22+/-0.18)e2	0.01 +/- 0.16	K	EPHIN SENSOR HOUSING TEMP

MTA Monitoring Report 02/13/26 - 02/19/26

Radiation

Detrended CTI