MTA Monitoring Report 10/24/25 - 10/30/25

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
Current Warm Pixels	(786,117)	(910,239) (985,393) (802,665)	(726,537) (178,149) (99,899) (837,378) (526,66) (803,225)	(811,637) (21,95)		(849,169)	(335,412)
Flickering Warm Pixels			(665,25)	(617,159) (680,391) (318,53)	(357,303) (367,511) (263,317) (728,340) (669,577) (161,206) (233,227) (369,376)	(287,164) (884,31) (1000,214) (670,387) (328,699)	(126,856)	(136,65) (295,978) (139,109) (597,187) (182,474) (447,769) (275,393) (220,813) (675,304) (893,490) (881,53)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates					512 1022 510		512 1022
Flickering Warm column candidates

ACIS Focal Plane Temperature

For this period, 7 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
295.96	-115.35	1.29
297.05	-112.20	0.98
298.99	-105.95	1.72
299.73	-111.28	0.29
300.06	-108.23	0.26
301.15	-110.00	0.48
301.86	-105.47	0.71

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	0.00132 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	10/24/25	10/25/25	10/26/25	10/27/25	10/28/25	10/29/25	10/30/25	yellow limits (lower) upper	red limits (lower) upper	Units	Description
AFTBLKHDT							308.42	(260.2) 303.0	(250.2) 308.0	TEMP	AFT BULKHEAD TEMP
AWD1TQI	(-3.39)	(-3.39)			(-3.39)		(-3.31)	(-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)			(-3.47)		(-3.43)	(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 6 TORQUE CURRENT
CTXBPWR		(0.00)	(0.00)	(0.00)	(0.00)		(0.00)	(36.12) 37.0	(36.0) 38.0	DBM	TRANSMITTER B OUTPUT POWER
ELBI			66.35					(20.0) 60.0	(13.0) 66.0	AMP	LOAD BUS CURRENT (HIGH RANGE)
HRMACAV		295.66				295.59		(293.4) 294.8	(292.8) 295.5	TEMP	HRMA CAVITY AVG TEMP
MZOBACONE				308.81	309.93	310.03	315.26	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG					301.53	302.42		(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBACONEAVG	302.77			305.33	306.65			(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP
OBADIAGRAD	4.23	4.75	4.74	4.95	4.85	4.92	4.54	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
PZOBACONE							311.55	(260.2) 303.0	(250.2) 308.0	CONE	+Z SIDE OBA CONE
TFTERANGE				47.06	47.12	48.94	49.64	(16.7) 37.5	(11.1) 45.0	K	TFTE VENT/RAD TEMP
TSCTSF3			(268.43)			(268.06)	(268.06)	(278.15) 359.15	(269.15) 483.15	K	SC-TS FITTING -3 TEMP

IRUs

Gyro Bias Drift	Gyro Bias Drift Histogram

Recent Observations

OBSID	DETECTOR	GRATING	TARGET	ANALYSIS	ACA
31937	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK
30519	ACIS-456789	HETG	WR 11	OK/NA	OK
31946	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK
29837	ACIS-0123	NONE	PSR J1459-6053	OK	OK
31947	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK
31948	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK
31956	ACIS-0123	NONE	PSR J1459-6053	OK	OK
29862	ACIS-3678	NONE	AM0126-525	OK	OK
31949	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK
31935	ACIS-0123	NONE	MACS J0018.5+1626	OK	OK
31923	ACIS-678	NONE	2MASXiJ1802473-145454	OK	OK
31936	ACIS-0123	NONE	MACS J0018.5+1626	OK	OK
31927	ACIS-0123	NONE	HEP G355.212-00.921	OK	OK
31938	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK
29976	ACIS-67	NONE	SDSS J130557.09+325019.6	OK	OK
30370	ACIS-01236	NONE	Perseus cluster E	OK	OK
29962	ACIS-67	NONE	AKARI-IRC-V1 J1757000+590759	OK	OK
30378	ACIS-3567	NONE	Abell 795	OK	OK
31964	ACIS-01236	NONE	Perseus cluster E	OK	OK
31965	ACIS-67	NONE	Abell 795	OK	OK
31922	ACIS-67	NONE	CHIME J1634+44	OK	OK
30229	ACIS-0123	NONE	[vD2023]1	OK	OK
29845	ACIS-0123	NONE	PSR J2055+2539	OK	OK
29793	ACIS-23678	NONE	IC 10 X-1	OK	OK
29873	ACIS-67	NONE	SDSS J023749.52-092556.1	OK	OK
30146	ACIS-3678	NONE	IC1954	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
4rt556t	0.070	5.912e-04	(2.94+/-0.01)e2	0.03 +/- 0.01	K	RT 556 - HRMA TEMP
4rt558t	0.083	6.351e-04	(2.94+/-0.01)e2	0.03 +/- 0.01	K	RT 558 - HRMA TEMP
4rt568t	0.694	0.003	(2.91+/-0.05)e2	0.12 +/- 0.04	K	RT 568 - HRMA TEMP
4rt575t	0.983	0.003	(2.94+/-0.07)e2	0.14 +/- 0.05	K	RT 575 - OB CONE TEMP
4rt576t	0.713	0.003	(2.87+/-0.05)e2	0.12 +/- 0.04	K	RT 576 - OB CONE TEMP
4rt577t	1.060	0.004	(2.94+/-0.08)e2	0.20 +/- 0.07	K	RT 577 - OB CONE TEMP
4rt578t	0.961	0.004	(2.92+/-0.07)e2	0.20 +/- 0.07	K	RT 578 - OB CONE TEMP
4rt579t	0.700	0.004	(2.89+/-0.06)e2	0.19 +/- 0.06	K	RT 579 - OB CONE TEMP
4rt580t	0.702	0.004	(2.88+/-0.06)e2	0.20 +/- 0.06	K	RT 580 - OB CONE TEMP
4rt581t	0.793	0.004	(2.90+/-0.06)e2	0.22 +/- 0.08	K	RT 581 - OB CONE TEMP

HRMA Struts

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
4rt582t	0.359	0.002	(2.87+/-0.03)e2	0.06 +/- 0.02	K	RT 582 - STRUT TEMP
4rt583t	0.558	0.002	(2.90+/-0.04)e2	0.07 +/- 0.03	K	RT 583 - STRUT TEMP
4rt584t	0.704	0.002	(2.93+/-0.05)e2	0.08 +/- 0.04	K	RT 584 - STRUT TEMP
4rt585t	0.706	0.002	(2.94+/-0.05)e2	0.09 +/- 0.04	K	RT 585 - STRUT TEMP
4rt586t	0.567	0.002	(2.91+/-0.04)e2	0.09 +/- 0.03	K	RT 586 - STRUT TEMP
4rt587t	0.365	0.002	(2.87+/-0.03)e2	0.05 +/- 0.03	K	RT 587 - STRUT TEMP
4rt588t	-0.043	4.859e-04	(2.83+/-0.00)e2	0.01 +/- 0.01	K	RT 588 - STRUT TEMP
4rt589t	0.714	0.003	(2.88+/-0.06)e2	0.10 +/- 0.05	K	RT 589 - STRUT TEMP
4rt590t	1.289	0.004	(2.96+/-0.10)e2	0.14 +/- 0.07	K	RT 590 - STRUT TEMP
4rt591t	1.277	0.004	(2.96+/-0.10)e2	0.13 +/- 0.07	K	RT 591 - STRUT TEMP
4rt592t	0.652	0.003	(2.87+/-0.05)e2	0.11 +/- 0.04	K	RT 592 - STRUT TEMP
4rt593t	-0.035	4.662e-04	(2.83+/-0.00)e2	0.00 +/- 0.01	K	RT 593 - STRUT TEMP
4rt594t	0.146	0.002	(2.89+/-0.02)e2	0.03 +/- 0.01	K	RT 594 - TFTE TEMP
4rt595t	0.695	0.003	(2.88+/-0.05)e2	0.10 +/- 0.04	K	RT 595 - TFTE TEMP
4rt596t	0.632	0.003	(2.87+/-0.05)e2	0.04 +/- 0.03	K	RT 596 - TFTE TEMP
4rt597t	1.251	0.004	(2.95+/-0.09)e2	0.15 +/- 0.06	K	RT 597 - TFTE TEMP
4rt598t	1.226	0.004	(2.95+/-0.09)e2	0.16 +/- 0.06	K	RT 598 - TFTE TEMP

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

MTA Monitoring Report 10/24/25 - 10/30/25

Radiation

Detrended CTI

ACIS Warm Pixels

ACIS Focal Plane Temperature

SIM Movements

Telemetry

IRUs

Recent Observations

Trending

HRMA Thermal

HRMA Struts