MTA Monitoring Report 10/31/25 - 11/06/25

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)	(837,378) (178,149) (803,225) (526,66) (99,899)	(21,95) (811,637)		(1000,214) (849,169)
Flickering Warm Pixels	(283,278)	(874,626)	(665,25) (726,537)	(680,391) (617,159)	(233,102) (877,408) (357,303) (367,511) (161,206) (669,577) (263,317) (282,385) (369,376) (233,227) (728,340)	(670,387) (884,31)	(335,412) (126,856)	(881,53) (447,769) (182,474) (275,393) (295,978) (675,304) (178,399) (220,813) (666,165) (332,324) (139,109) (893,490) (597,187) (136,65)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates					512 510 1022		512 1022
Flickering Warm column candidates								504

ACIS Focal Plane Temperature

For this period, 8 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
302.49	-105.92	1.06
303.69	-114.70	0.41
305.37	-106.12	0.93
306.16	-110.72	0.39
306.75	-106.41	0.58
307.14	-104.28	0.45
307.98	-108.21	1.30
308.93	-109.36	0.41

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

12 TSC moves this period

weekly average time/step	0.00135 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	10/31/25	11/01/25	11/02/25	11/03/25	11/04/25	11/05/25	11/06/25	yellow limits (lower) upper	red limits (lower) upper	Units	Description
AWD6TQI		(-3.43)	(-3.39)					(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 6 TORQUE CURRENT
CTXBPWR			(0.00)	(0.00)		(0.00)		(36.12) 37.0	(36.0) 38.0	DBM	TRANSMITTER B OUTPUT POWER
MZOBACONE	311.25	311.84	309.17		311.36	310.92	310.05	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG	302.72	303.39	302.26		302.72	302.54	302.06	(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBACONEAVG					308.13			(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP
OBADIAGRAD	4.80	4.81	4.51	4.43	4.83	4.81	4.84	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
TFTERANGE	48.16	48.56	47.94	45.87	48.40	46.54	48.29	(16.7) 37.5	(11.1) 45.0	K	TFTE VENT/RAD TEMP
TSCTSF3	(268.79)	(268.79)						(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
29873	ACIS-67	NONE	SDSS J023749.52-092556.1	OK	OK
30146	ACIS-3678	NONE	IC1954	OK	OK
29651	ACIS-3678	NONE	NGC3596	OK	OK
30230	ACIS-0123	NONE	[vD2023]1	OK	OK
31963	ACIS-0123	NONE	[vD2023]1	OK	OK
29644	ACIS-3678	NONE	NGC2283	OK	OK
31960	ACIS-0123	NONE	UGC 02168	OK	OK
31962	ACIS-3678	NONE	NGC3596	OK	OK
29959	ACIS-678	NONE	2MASS J09270013+1900383	OK	OK
30122	ACIS-67	NONE	Cassiopeia A	OK	OK
29874	ACIS-2567	NONE	SDSS J131603.91+292254.0	OK	OK
30315	ACIS-0123	NONE	Perseus cluster	OK	OK
31305	ACIS-67	NONE	SDSS J114805.44+214945.3	OK	OK
31972	ACIS-2567	NONE	SDSS J131603.91+292254.0	OK	OK
29825	ACIS-2367	NONE	SN 1986J	OK	OK
30252	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
31974	ACIS-0123	NONE	Perseus cluster	OK	OK
30488	ACIS-0123	NONE	PSZ2G144.99-24.64	OK	OK
31527	ACIS-456789	HETG	V444 Cyg	OK/NA	OK
31975	ACIS-0123	NONE	PSZ2G144.99-24.64	OK	OK
29649	ACIS-3678	NONE	NGC3239	OK	OK
31978	ACIS-0123	NONE	PSZ2G144.99-24.64	OK	OK
31973	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
31982	ACIS-3678	NONE	AT2025aarm	OK	OK
30496	ACIS-67	NONE	NGC 1140	OK	OK
31133	ACIS-23678	NONE	1eRASS J085257.4+270015	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
4hposaro	-0.155	0.029	67.81 +/- 20.17	0.76 +/- 0.83	na	NA
4hposbro	-0.151	0.029	68.39 +/- 20.39	0.77 +/- 0.84	na	NA
4lposaro	0.036	0.018	73.94 +/- 12.47	0.28 +/- 0.47	na	NA
4lposbro	0.038	0.019	72.99 +/- 12.82	0.36 +/- 0.48	na	NA
4mp28av	0.013	0.001	0.41 +/- 0.73	-0.01 +/- 0.02	V	MCE A: +28 VOLT MONITOR
4mp28bv	0.079	0.005	2.02 +/- 3.22	-0.03 +/- 0.12	V	MCE B: +28 VOLT MONITOR
4mp5av	0.019	0.001	0.49 +/- 0.78	-0.01 +/- 0.03	V	MCE A: +5 VOLT MONITOR
4mp5bv	0.014	8.331e-04	0.37 +/- 0.59	-0.01 +/- 0.02	V	MCE B: +5 VOLT MONITOR

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

MTA Monitoring Report 10/31/25 - 11/06/25

Radiation

Detrended CTI