MTA Monitoring Report 11/14/25 - 11/20/25

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		(438,127)
Current Warm Pixels	(786,117)	(910,239) (985,393)	(178,149) (803,225) (837,378) (104,31) (726,537) (526,66)	(21,95) (680,391)		(849,169) (884,31)	(335,412)	(139,109) (597,187) (182,474) (136,65) (178,399) (275,393)
Flickering Warm Pixels	(798,494) (283,278) (692,141)	(802,665) (271,24) (427,125)	(665,25) (353,201) (99,899)	(394,80) (811,637) (318,53) (617,159)	(357,303) (367,511) (233,102) (369,376) (263,317) (669,577) (728,340) (161,206) (282,385)	(357,29) (670,387) (80,130) (1000,214)	(126,856) (368,231)	(220,813) (838,239) (34,645) (675,304) (333,466) (332,324) (326,978) (295,978) (893,490) (881,53) (666,165) (447,769)
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, 6 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
316.89	-115.03	0.35
317.59	-110.59	0.60
318.17	-114.22	0.39
318.58	-111.79	0.43
319.93	-104.80	2.29
322.86	-99.32	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

7 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	11/14/25	11/15/25	11/16/25	11/17/25	11/18/25	11/19/25	11/20/25	yellow limits (lower) upper	red limits (lower) upper	Units	Description
AFTBLKHDT		308.80				309.20		(260.2) 303.0	(250.2) 308.0	TEMP	AFT BULKHEAD TEMP
AWD1TQI		(-3.35)				(-3.43)		(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 1 TORQUE CURRENT
AWD6TQI		(-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
MZOBACONE	311.56	315.10	310.25	312.42	309.43	315.40	312.28	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG	302.89	306.00	302.31	303.36	302.36	306.25	304.79	(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBADIAGRAD	4.79	4.58	4.52	4.99	4.49	4.92	4.88	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
PZOBACONE		310.90		308.01		311.19	309.71	(260.2) 303.0	(250.2) 308.0	CONE	+Z SIDE OBA CONE
TCYZ_RW6						(275.71)		(288.15) 363.15	(278.15) 404.15	K	RWA -6 TEMP (RWA CRNR COMP)
TFTERANGE		49.12	45.89	46.66	46.58	48.22	46.77	(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
31986	ACIS-0123	NONE	ESO 320- G 014	OK	OK
31985	ACIS-67	NONE	NGC7172_s1	OK	OK
31991	ACIS-3678	NONE	IC1954	OK	OK
31997	ACIS-67	NONE	SDSS J031426.10-010846.2	OK	OK
31211	ACIS-67	NONE	SN 2018ivc	OK	OK
31984	ACIS-67	NONE	ESO231-26	OK	OK
31996	ACIS-67	NONE	SN 2018ivc	OK	OK
31119	ACIS-67	NONE	ZTF J0425+3858	OK	OK
29954	ACIS-678	NONE	WISE J121857.42+103551.2	OK	OK
30308	ACIS-0123	NONE	Perseus cluster	OK	OK
30057	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
32005	ACIS-0123	NONE	Perseus cluster	OK	OK
32002	ACIS-678	NONE	WISE J121857.42+103551.2	OK	OK
30431	ACIS-0123	NONE	Abell 2255	OK	OK
29898	ACIS-0123	NONE	Ton S180	OK	OK
32008	ACIS-0123	NONE	Abell 2255	OK	OK
32000	ACIS-67	NONE	CD-45 14955B	OK	OK
31999	ACIS-678	NONE	B2.4 0357+23	OK	OK
29993	ACIS-67	NONE	CFHQS J142952+544717	OK	OK
32003	ACIS-67	NONE	CFHQS J142952+544717	OK	OK
30310	ACIS-0123	NONE	Perseus cluster	OK	OK
31690	ACIS-0123	NONE	SDSS J014837.63+060020.0	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
2ceahvpt	-0.092	0.009	(2.96+/-0.06)e2	-0.14 +/- 0.09	K	CEA RADIATOR TEMPERATURE AT CENTER
2chtrpzt	0.311	0.004	(2.94+/-0.03)e2	-0.05 +/- 0.10	K	CENTRAL ELECTRONICS BOX TEMP
2condmxt	-0.051	0.009	(2.89+/-0.06)e2	-0.13 +/- 0.08	K	CONDUIT -X FACE TEMPERATURE
2dcentrt	-0.072	0.008	(2.89+/-0.05)e2	-0.06 +/- 0.08	K	DETECTOR HOUSING TEMP 2
2dtstatt	-0.132	0.009	(2.89+/-0.06)e2	-0.06 +/- 0.08	K	DETECTOR HOUSING TEMP 1
2fhtrmzt	-0.222	0.012	(2.90+/-0.08)e2	-0.10 +/- 0.08	K	FRONT END ELECTRONICS BOX TEMPERATURE
2fradpyt	-0.192	0.011	(2.86+/-0.08)e2	-0.11 +/- 0.08	K	FRONT END ASSEMBLY +Y AT RADIATOR CENTER TEMP
2pmt1t	0.139	0.006	(2.91+/-0.04)e2	-0.11 +/- 0.10	K	PMT 1 TEMPERATURE
2pmt2t	0.140	0.007	(2.93+/-0.05)e2	-0.09 +/- 0.11	K	PMT 2 TEMPERATURE
2uvlspxt	-0.027	0.006	(2.86+/-0.04)e2	-0.06 +/- 0.10	K	UV LIGHT SHIELD NEXT TO SNOUT TEMP

HRC Housekeeping

MSID		Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
2fe00atm		0.193	0.005	19.68 +/- 3.20	-0.07 +/- 0.07	C	Front end temperature
2fepratm	off	-5.243	0.280	19.61 +/- 10.53	-1.34 +/- 4.30	C	FE temp card temperature
	on	0.279	0.003	22.04 +/- 2.64	-0.14 +/- 0.08	C	FE temp card temperature
2iminatm	off	-3.754	0.211	16.58 +/- 7.77	-0.71 +/- 3.91	C	Imaging det temperature
	on	0.237	0.004	16.73 +/- 2.76	-0.06 +/- 0.10	C	Imaging det temperature
2lvplatm	off	-3.555	0.196	24.65 +/- 7.27	-2.16 +/- 3.37	C	LVPS plate temperature
	on	0.230	0.003	25.87 +/- 2.29	-0.12 +/- 0.07	C	LVPS plate temperature
2prbscr	off	-0.001	0.002	1.74 +/- 0.07	-0.05 +/- 0.15	AMP	Primary bus current
	on	-8.701e-04	8.346e-05	1.60 +/- 0.05	(1.91+/-14.58)e-4	AMP	Primary bus current
2prbsvl		-0.109	5.253e-04	28.15 +/- 0.81	0.00 +/- 0.01	V	Primary bus voltage

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

MTA Monitoring Report 11/14/25 - 11/20/25

Radiation

Detrended CTI

ACIS Warm Pixels

ACIS Focal Plane Temperature

SIM Movements

Telemetry

IRUs

Recent Observations

Trending

HRC Thermal

HRC Housekeeping