MTA Monitoring Report 09/19/25 - 09/25/25

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								(392,359)
Current Warm Pixels	(786,117)	(985,393) (802,665) (910,239)	(837,378) (726,537) (99,899) (178,149) (803,225) (526,66) (104,31)	(811,637) (21,95)		(849,169)
Flickering Warm Pixels	(171,937)	(90,859) (427,125)	(665,25)	(680,391) (617,159)	(728,340) (669,577) (161,206) (263,317) (554,484) (233,227) (233,102) (369,376)	(1000,214) (884,31) (670,387)	(335,412)	(275,393) (597,187) (136,65) (139,109) (838,239) (893,490)
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, 9 peaks are observed.

Day (DOY)	Temp (C)	Width (Days)
260.33	-111.94	0.75
261.77	-107.25	1.07
263.00	-111.62	0.39
263.34	-112.44	0.44
263.80	-113.06	0.42
264.43	-106.92	0.60
264.73	-108.18	0.27
265.08	-111.86	0.52
265.93	-105.48	0.79

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	0.00135 s
mission average time/step	0.00132 s

Telemetry

New violations or new extrema are shown in blue cells.

MSID	09/19/25	09/20/25	09/21/25	09/22/25	09/23/25	09/24/25	09/25/25	yellow limits (lower) upper	red limits (lower) upper	Units	Description
AWD1TQI		(-3.39)			(-3.39)	(-3.39)	(-3.39)	(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 1 TORQUE CURRENT
AWD3TQI				(-3.39)				(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 3 TORQUE CURRENT
AWD4TQI					(-3.39)			(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 4 TORQUE CURRENT
AWD6TQI		(-3.47)			(-3.43)	(-3.47)	(-3.47)	(-1.22) 1.22	(-3.3) 3.3	AMP	WHEEL 6 TORQUE CURRENT
CALPALV	(124.00)							(126.0) 128.0	(125.0) 129.0	V	Cal Pulser Amplitude
CTXBPWR	(0.00)	(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)					(5.63) 30.15	(5.3) 33.0	AMP	S/A -Y CURRENT
ESAPYI			(0.14)					(5.54) 30.15	(5.2) 33.0	AMP	S/A +Y CURRENT
IMHBLV				(85.00)			(0.00)	(126.0) 128.0	(125.0) 129.0	(2IMHBLV)	Imaging Bot & Top MCP HV Monitor
MZOBACONE		310.46		313.01	314.25	310.38	313.27	(260.2) 303.0	(250.2) 308.0	CONE	-Z SIDE OBA CONE
OBAAVG		302.19		304.24	305.31	302.75	304.14	(282.5) 300.0	(281.4) 301.0	K	OBA/TFTE TEMP
OBACONEAVG	305.22							(282.5) 300.0	(281.8) 301.0	K	OBA CONE AVG TEMP
OBADIAGRAD	4.10	4.80	4.43	4.65	4.82	4.79	4.75	(-1.11) 3.5	(-2.78) 3.9	K	OBA DIAM GRAD
PZOBACONE				308.86	310.04		308.69	(260.2) 303.0	(250.2) 308.0	CONE	+Z SIDE OBA CONE
TFTERANGE	47.90	47.76	47.44			47.23	47.55	(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
29628	ACIS-23	NONE	Perseus Cluster	OK	OK
29629	ACIS-67	NONE	Perseus Cluster	OK	OK
29934	ACIS-67	NONE	SDSS J134009.43+411442.8	OK	OK
28633	ACIS-0123	NONE	Abell 370	OK	OK
31870	ACIS-67	NONE	PSR_J2339m0533_s2	OK	OK
31873	HRC-I	HETG	4U 1626-67	OK/NA	OK
30136	ACIS-2367	NONE	SNR G1.9+0.3	OK	OK
31871	ACIS-67	NONE	PSR_J2339m0533_s3	OK	OK
31868	ACIS-67	NONE	SDSSJ101401.86+461953.7	OK	OK
30509	ACIS-01236	NONE	Centaurus A	OK	OK
29630	ACIS-67	NONE	Perseus Cluster	OK	OK
31874	ACIS-5678	HETG	M33 X-8	OK/NA	OK
28638	ACIS-0123	NONE	Abell 370	OK	OK
29598	ACIS-23	NONE	Cas A	OK	OK
29970	ACIS-67	NONE	SDSS J011207.48-005955.5	OK	OK
31487	ACIS-012367	NONE	NEXUS	OK	OK
29927	ACIS-67	NONE	SDSS J011441.96+034915.8	OK	OK
30491	HRC-I	HETG	4U 1626-67	OK/NA	OK
31473	ACIS-0123	NONE	SPT-CL J2305-2248	OK	OK
29865	ACIS-3678	NONE	AM0305-824	OK	OK
29866	ACIS-3678	NONE	AM2107-474	OK	OK
28074	ACIS-0123	NONE	XMMU J170147.3-421407	OK	OK
29869	ACIS-2567	NONE	SDSS J003710.56-092725.1	OK	OK
31890	ACIS-3678	NONE	AM2107-474	OK	OK
31481	ACIS-0123	NONE	SPT-CL J2305-2248	OK	OK
31892	HRC-I	HETG	4U 1626-67	OK/NA	OK
31893	HRC-I	HETG	4U 1626-67	OK/NA	OK
30489	ACIS-0123	NONE	PSZ2G085.23+39.42	OK	OK

MSID	Mean	RMS	Delta/Yr	Delta/Yr/Yr	Unit	Description
3btu_bpt	0.432	0.009	(2.66+/-0.07)e2	-0.13 +/- 0.21	K	BTU BASEPLATE (+X)), ABORT HTR TSC2
3fabraat	0.034	0.005	(2.66+/-0.03)e2	-0.05 +/- 0.08	K	FA STRUCTURE AT BEARING A ABORT HTR. FA6 TEMP
3fabrcat	0.008	0.009	(2.75+/-0.06)e2	-0.01 +/- 0.18	K	FA STRUCTURE AT BEARING C ABORT HTR. FA6 TEMP
3famyzat	-0.637	0.016	(2.81+/-0.12)e2	0.02 +/- 0.22	K	FA STRUCTURE +X FACE AT -Y-Z END ABORT HTR. FA6 TEMP
3fapyzat	-0.798	0.014	(2.80+/-0.12)e2	-0.05 +/- 0.09	K	FA STRUCTURE +X FACE AT +Y+Z END ABORT HTR. FA6 TEMP
3faralat	-0.272	0.015	(2.75+/-0.11)e2	0.05 +/- 0.28	K	FA STRUCTURE AT RAIL -Z, ABORT HEATER FA6 TEMP
3flcabpt	0.385	0.004	(2.82+/-0.04)e2	-0.11 +/- 0.09	K	FLCA BASEPLATE (+X)
3rctubpt	0.564	0.011	(2.73+/-0.09)e2	-0.26 +/- 0.26	K	RCTU BASEPLATE (+X)
3tsmxcet	2.071	0.028	(2.28+/-0.24)e2	0.09 +/- 0.58	K	-X TURTLE SHELL NR HRC CEA
3tsmxspt	10.267	0.112	(3.16+/-1.07)e2	2.10 +/- 1.78	K	-X TURTLE SHELL NR ACIS SS
3tsmydpt	0.870	0.012	(2.33+/-0.10)e2	-0.26 +/- 0.24	K	-Y TURTLE SHELL NR ACIS DPA
3tspyfet	0.324	0.008	(2.34+/-0.06)e2	-0.20 +/- 0.17	K	+Y TURTLE SHELL NR HRC FEA
3tspzdet	0.665	0.009	(2.67+/-0.08)e2	-0.06 +/- 0.20	K	+Z TURTLE SHELL NR ACIS DEA
3tspzspt	0.705	0.009	(2.71+/-0.08)e2	-0.10 +/- 0.18	K	+Z TURTLE SHELL NR ACIS SS
3ttacs1t	0.172	0.003	(2.66+/-0.02)e2	0.02 +/- 0.07	K	TT at ACIS Attach #1 Abort Htr
3ttacs2t	0.157	0.004	(2.66+/-0.03)e2	0.03 +/- 0.09	K	TT at ACIS Attach #2 Abort Htr
3ttacs3t	0.150	0.002	(2.62+/-0.02)e2	0.06 +/- 0.03	K	TT at ACIS Attach #3 Abort Htr
3ttbrgbt	0.217	0.012	(2.59+/-0.09)e2	-0.14 +/- 0.28	K	TT at Bearing B, Abort Htr TSC4
3tthrc1t	0.223	0.013	(2.68+/-0.09)e2	-0.21 +/- 0.29	K	TT at HRC Bipod Attach #1
3tthrc2t	0.203	0.013	(2.73+/-0.09)e2	-0.23 +/- 0.29	K	TT at HRC Bipod Attach #2
3tthrc3t	0.139	0.004	(2.68+/-0.03)e2	0.07 +/- 0.09	K	TT at HRC Bipod Attach #3
3ttralat	0.295	0.009	(2.47+/-0.06)e2	-0.02 +/- 0.17	K	TT at Rail A, Abort Htr TSC3
3ttralct	0.154	0.006	(2.66+/-0.04)e2	0.07 +/- 0.13	K	TT at Rail C, Abort Htr TSC3
3ttvalvt	0.395	0.011	(2.54+/-0.08)e2	0.01 +/- 0.24	K	TT at Vent Valve, Abort Htr TSC7

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

MTA Monitoring Report 09/19/25 - 09/25/25

Radiation

Detrended CTI