MTA Monitoring Report 01/30/26 - 02/05/26

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
Current Warm Pixels	(786,117)	(910,239)	(837,378) (526,66) (178,149) (803,225)	(21,95)		(1000,214) (849,169) (670,387)	(335,412)
Flickering Warm Pixels	(171,937)	(802,665) (427,125) (700,242)	(99,899) (353,201) (104,31) (726,537) (665,25)	(680,391) (811,637) (318,53) (617,159) (394,80)	(161,206) (367,511) (357,303) (263,317) (669,577) (369,376)	(80,130)		(597,187) (275,393) (136,65)
Current Hot Pixels
Flickering Hot Pixels
Warm column candidates					1022 512 510		1022 512
Flickering Warm column candidates

ACIS Focal Plane Temperature

For this period, 7 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
029.21	-99.22	1.03
029.64	-109.36	0.52
030.55	-110.68	0.73
030.90	-107.42	0.49
031.86	-97.97	1.43
032.79	-113.43	0.25
033.41	-105.38	0.98

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

10 TSC moves this period

weekly average time/step	0.00137 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	01/30/26	01/31/26	02/01/26	02/02/26	02/03/26	02/04/26	02/05/26	yellow limits (lower) upper	red limits (lower) upper	Units	Description
1CRBT					677.96			(136.15) 183.15	(131.15) 193.15	K	COLD RADIATOR TEMP. B
1CRBTC					(74.06)			(136.15) 183.15	(131.15) 193.15	C	COLD RADIATOR TEMP. B
AFTBLKHDT	309.43	309.20		308.02				(260.2) 303.0	(250.2) 308.0	TEMP	AFT BULKHEAD TEMP
AWD1TQI		(-3.39)	(-3.39)					(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 1 TORQUE CURRENT
AWD6TQI		(-3.43)	(-3.47)					(-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
ESAMYI		(0.06)			(0.06)			(5.63) 30.15	(5.3) 33.0	AMP	S/A -Y CURRENT
ESAPYI		(0.14)			(0.14)			(5.54) 30.15	(5.2) 33.0	AMP	S/A +Y CURRENT
HRMAAVG	(304.09)	(304.24)	(304.59)	(304.69)	(303.89)			(306.0) 308.0	(305.0) 309.0	K	AVG OF HRMA METRICS
MZOBACONE	315.74	315.67	313.22	314.92	313.78	312.44	313.45	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG	306.67				305.13	304.35	304.59	(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBACONEAVG						309.97		(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP
OBADIAGRAD	4.72	4.75	4.63	4.69	4.56	4.72	4.79	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
PZOBACONE	311.71	311.82	309.72	311.34	309.74	308.90	308.98	(260.2) 303.0	(250.2) 308.0	CONE	+Z SIDE OBA CONE
TFTERANGE	48.89	49.04		49.48	48.45	49.07	47.60	(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
32133	ACIS-0123	NONE	PSZ2G071.21+28.86	OK	OK
26967	HRC-I	NONE	XI BOO	OK	OK
30253	ACIS-0123	NONE	Center of COSMOS-Web	OK	OK
30320	ACIS-0123	NONE	Perseus cluster	OK	OK
32126	ACIS-0123	NONE	RMJ082409.6+192443.9	OK	OK
32135	ACIS-67	NONE	Hercules A	OK	OK
31632	ACIS-0123	NONE	PJ011646	OK	OK
30321	ACIS-01236	NONE	Perseus cluster	OK	OK
32127	ACIS-67	NONE	2RXS J083147.5+054502	OK	OK
31045	ACIS-0123	NONE	Orion Nebula snapshot 1	OK	OK
31445	ACIS-67	NONE	ESO221-009	OK	OK
31046	ACIS-0123	NONE	Orion Nebula snapshot 2	OK	OK
31047	ACIS-0123	NONE	Orion Nebula snapshot 3	OK	OK
32136	ACIS-0123	NONE	PJ011646	OK	OK
29833	ACIS-67	NONE	SN2025sei	OK	OK
29981	ACIS-0123	NONE	BOSS1348	OK	OK
31280	ACIS-67	NONE	SDSS J101639.87+194048.4	OK	OK
32111	ACIS-67	NONE	SN2025sei	OK	OK
32137	ACIS-67	NONE	SDSSJ093404.74+195617.6	OK	OK
30393	ACIS-567	NONE	ZwCl 0857.9+2107	OK	OK
30296	ACIS-01236	NONE	Perseus cluster	OK	OK
30127	ACIS-2367	NONE	SNR G1.9+0.3	OK	OK
31433	ACIS-67	NONE	PG 1004+130	OK	OK
31444	ACIS-67	NONE	ESO324-008	OK	OK
31048	ACIS-0123	NONE	Orion Nebula snapshot 4	OK	OK
32142	ACIS-2367	NONE	SNR G1.9+0.3	OK	OK
31050	ACIS-0123	NONE	Orion Nebula snapshot 6	OK	OK
31049	ACIS-0123	NONE	Orion Nebula snapshot 5	OK	OK
30314	ACIS-0123	NONE	Perseus cluster	OK	OK
30232	ACIS-0123	NONE	[vD2023]1	OK	OK
32138	ACIS-67	NONE	SDSSJ085640.78+105755.8	OK	OK
30316	ACIS-0123	NONE	Perseus cluster	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
2ceahvpt	-0.433	0.009	(2.94+/-0.08)e2	-0.09 +/- 0.07	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	-0.411	0.009	(2.86+/-0.08)e2	-0.10 +/- 0.07	K	CONDUIT -X FACE TEMPERATURE
2dcentrt	-0.374	0.008	(2.87+/-0.07)e2	-0.04 +/- 0.07	K	DETECTOR HOUSING TEMP 2
2dtstatt	-0.505	0.009	(2.87+/-0.09)e2	-0.03 +/- 0.06	K	DETECTOR HOUSING TEMP 1
2fhtrmzt	-0.682	0.012	(2.87+/-0.11)e2	-0.07 +/- 0.07	K	FRONT END ELECTRONICS BOX TEMPERATURE
2fradpyt	-0.617	0.011	(2.84+/-0.10)e2	-0.09 +/- 0.07	K	FRONT END ASSEMBLY +Y AT RADIATOR CENTER TEMP
2pmt1t	-0.045	0.005	(2.90+/-0.04)e2	-0.09 +/- 0.09	K	PMT 1 TEMPERATURE
2pmt2t	-0.084	0.006	(2.92+/-0.05)e2	-0.07 +/- 0.09	K	PMT 2 TEMPERATURE
2uvlspxt	-0.232	0.006	(2.84+/-0.05)e2	-0.03 +/- 0.08	K	UV LIGHT SHIELD NEXT TO SNOUT TEMP

HRC Housekeeping

MSID		Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
2fe00atm		-0.118	0.008	18.53 +/- 5.66	-0.05 +/- 0.06	C	Front end temperature
2fepratm	off	-5.471	0.106	8.68 +/- 12.45	0.23 +/- 1.13	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	-3.985	0.077	8.58 +/- 9.07	-0.48 +/- 0.81	C	Imaging det temperature
	on	0.237	0.004	16.73 +/- 2.76	-0.06 +/- 0.10	C	Imaging det temperature
2lvplatm	off	-3.792	0.072	17.08 +/- 8.57	-0.69 +/- 0.73	C	LVPS plate temperature
	on	0.227	0.003	25.86 +/- 2.31	-0.12 +/- 0.07	C	LVPS plate temperature
2prbscr	off	-0.005	7.655e-04	1.73 +/- 0.05	-0.03 +/- 0.03	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		-0.117	4.989e-04	28.03 +/- 0.92	-(7.14+/-42.41)e-4	V	Primary bus voltage

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

MTA Monitoring Report 01/30/26 - 02/05/26

Radiation

Detrended CTI

ACIS Warm Pixels

ACIS Focal Plane Temperature

SIM Movements

Telemetry

IRUs

Recent Observations

Trending

HRC Thermal

HRC Housekeeping