MTA Monitoring Report 04/03/26 - 04/09/26

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)	(104,31) (178,149) (99,899) (526,66) (803,225)	(811,637) (21,95)		(1000,214) (670,387)	(335,412)
Flickering Warm Pixels	(283,278) (171,937)	(787,181) (427,125) (271,24)	(665,25) (353,201) (837,378) (726,537)	(680,391) (394,80) (318,53) (617,159)	(341,427) (369,376) (669,577) (263,317) (367,511) (233,227) (233,102) (357,303) (258,797) (161,206) (282,385)	(849,169)		(597,187) (838,239) (675,304) (295,978) (136,65) (275,393) (139,109) (220,813) (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, 7 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
091.70	-111.04	0.92
092.08	-111.15	0.40
092.71	-110.73	0.49
093.52	-111.95	0.38
093.86	-111.76	0.40
094.84	-110.81	1.16
095.37	-112.25	0.72

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

9 TSC moves this period

weekly average time/step	0.00140 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	04/03/26	04/04/26	04/05/26	04/06/26	04/07/26	04/08/26	04/09/26	yellow limits (lower) upper	red limits (lower) upper	Units	Description
AFTBLKHDT				308.36			309.16	(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)	(-3.31)		(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 6 TORQUE CURRENT
CTXBPWR							(0.00)	(36.12) 37.0	(36.0) 38.0	DBM	TRANSMITTER B OUTPUT POWER
MZOBACONE		314.10	312.45	314.69	311.71	313.54	315.49	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG		305.32	305.00	305.66	303.51	304.91	306.46	(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBACONEAVG	302.57							(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP
OBADIAGRAD	4.76	4.82	4.22	4.58	4.43	4.58	4.67	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
PZOBACONE		309.97	309.80	310.53		309.32	311.33	(260.2) 303.0	(250.2) 308.0	CONE	+Z SIDE OBA CONE
TCYZ_RW1		(275.71)	(274.98)	(274.98)	(275.34)	(275.71)		(288.15) 363.15	(278.15) 404.15	K	RWA -1 TEMP (RWA CRNR COMP)
TCYZ_RW6		(277.89)	(277.53)	(276.44)	(277.89)	(277.17)		(288.15) 363.15	(278.15) 404.15	K	RWA -6 TEMP (RWA CRNR COMP)
TFTERANGE		48.78	48.44		46.07	49.09	48.83	(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
30177	ACIS-3678	NONE	NGC4694	OK	OK
32273	ACIS-0123	NONE	Perseus cluster W	OK	OK
30337	ACIS-01236	NONE	Perseus cluster W	OK	OK
32266	ACIS-3678	NONE	NGC4694	OK	OK
30340	ACIS-01236	NONE	Perseus cluster W	OK	OK
31446	ACIS-67	NONE	PGC016986	OK	OK
32267	ACIS-3678	NONE	NGC4694	OK	OK
30341	ACIS-01236	NONE	Perseus cluster W	OK	OK
31082	ACIS-456789	HETG	GS 1354-64	CC/NA	OK
31260	ACIS-67	NONE	M 87	OK	OK
31437	ACIS-67	NONE	IRAS 07598+6508	OK	OK
32274	ACIS-67	NONE	AT2026dbl	OK	OK
31383	ACIS-67	NONE	Cas A	OK	OK
31382	ACIS-67	NONE	Cas A	OK	OK
32260	ACIS-0123	NONE	VCC 1465	OK	OK
31105	ACIS-3678	NONE	EP260321a	OK	OK
30343	ACIS-01236	NONE	Perseus cluster W	OK	OK
29658	ACIS-3678	NONE	NGC4540	OK	OK
30423	ACIS-0123	NONE	Abell 2255	OK	OK
32134	ACIS-0123	NONE	PSZ2G071.21+28.86	OK	OK
32278	ACIS-3678	NONE	NGC4540	OK	OK
32286	ACIS-0123	NONE	VLSSr J031859.0+575527	OK	OK
30487	ACIS-0123	NONE	VLSSr J031859.0+575527	OK	OK
32279	ACIS-3678	NONE	NGC4540	OK	OK
32287	ACIS-0123	NONE	VLSSr J031859.0+575527	OK	OK
30152	ACIS-3678	NONE	NGC2566	OK	OK
32288	ACIS-0123	NONE	VLSSr J031859.0+575527	OK	OK
30103	ACIS-456789	HETG	AN UMa	OK/NA	OK
32277	ACIS-67	NONE	2RXS J080121.5+590256	OK	OK
32281	ACIS-3678	NONE	NGC4941	OK	OK
29666	ACIS-3678	NONE	NGC4941	OK	OK
30539	ACIS-0123	NONE	1RXS J021649.0+703552	OK	OK
30540	ACIS-0123	NONE	1RXS J021649.0+703552	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
4hposaro	-0.290	0.025	66.78 +/- 20.53	0.70 +/- 0.69	na	NA
4hposbro	-0.285	0.025	67.37 +/- 20.73	0.74 +/- 0.70	na	NA
4lposaro	0.030	0.015	73.96 +/- 12.15	0.16 +/- 0.39	na	NA
4lposbro	0.031	0.015	73.01 +/- 12.49	0.20 +/- 0.40	na	NA
4mp28av	0.015	8.892e-04	0.44 +/- 0.74	-0.01 +/- 0.02	V	MCE A: +28 VOLT MONITOR
4mp28bv	0.091	0.004	2.23 +/- 3.39	-0.06 +/- 0.10	V	MCE B: +28 VOLT MONITOR
4mp5av	0.024	9.839e-04	0.55 +/- 0.84	-0.03 +/- 0.03	V	MCE A: +5 VOLT MONITOR
4mp5bv	0.017	7.307e-04	0.41 +/- 0.62	-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 04/03/26 - 04/09/26

Radiation

Detrended CTI