MTA Monitoring Report 12/12/25 - 12/18/25

Archive of all weekly reports
Archive of monthly reports

Radiation

Quiet

Detrended CTI

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.

 CCD0CCD1CCD2CCD3CCD4CCD5CCD6CCD7CCD8CCD9
Previously Unknown Bad Pixels                    
Current Warm Pixels (171,937) (786,117) (985,393) (802,665) (910,239) (665,25) (178,149) (837,378) (104,31) (803,225) (526,66) (99,899) (811,637) (21,95)   (369,376) (233,102) (357,303) (263,317) (282,385) (728,340) (849,169) (1000,214) (670,387) (335,412) (126,856) (597,187) (275,393) (139,109)  
Flickering Warm Pixels (283,278) (427,125) (726,537) (680,391) (617,159) (394,80) (318,53)   (161,206) (367,511) (877,408) (233,227) (641,669) (439,452) (166,738) (669,577) (258,797) (287,164) (884,31) (328,699) (874,186) (326,978) (838,239) (541,41) (136,65) (447,769) (182,474) (333,466) (295,978) (675,304) (881,53) (893,490) (220,813)  
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, 5 peaks are observed.

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

14 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 12/12/25 12/13/25 12/14/25 12/15/25 12/16/25 12/17/25 12/18/25 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
AFTBLKHDT 309.46 308.84 308.47       309.31 (260.2)
303.0		 (250.2)
308.0		 TEMPAFT BULKHEAD TEMP
AWD1TQI (-3.35)   (-3.39)     (-3.39)   (-1.22)
1.22		 (-3.3)
3.3		 AMPWHEEL 1 TORQUE CURRENT
AWD6TQI (-3.39)   (-3.43)     (-3.43)   (-1.22)
1.22		 (-3.3)
3.3		 AMPWHEEL 6 TORQUE CURRENT
CTXBPWR (0.00)     (0.00)   (0.00) (0.00) (36.12)
37.0		 (36.0)
38.0		 DBMTRANSMITTER B OUTPUT POWER
HRMAAVG (304.02)   (304.89) (304.13)       (306.0)
308.0		 (305.0)
309.0		 KAVG OF HRMA METRICS
MZOBACONE 315.77 315.05   313.76   311.66 315.55 (260.2)
303.0		 (250.2)
308.0		 CONE-Z SIDE OBA CONE
OBAAVG 306.64     305.28   303.30 306.35 (282.5)
300.0		 (281.4)
301.0		 KOBA/TFTE TEMP
OBACONEAVG           308.82   (282.5)
300.0		 (281.8)
301.0		 KOBA CONE AVG TEMP
OBADIAGRAD 4.83 4.80 4.58 4.57 4.26 4.49 4.60 (-1.11)
3.5		 (-2.78)
3.9		 KOBA DIAM GRAD
PZOBACONE 311.56 310.76   309.87     311.30 (260.2)
303.0		 (250.2)
308.0		 CONE+Z SIDE OBA CONE
TCYZ_RW1         (276.80) (273.52)   (288.15)
363.15		 (278.15)
404.15		 KRWA -1 TEMP (RWA CRNR COMP)
TCYZ_RW6         (277.17)     (288.15)
363.15		 (278.15)
404.15		 KRWA -6 TEMP (RWA CRNR COMP)
TFTERANGE 47.80     46.98 45.47 49.05 49.27 (16.7)
37.5		 (11.1)
45.0		 KTFTE VENT/RAD TEMP


IRUs

Gyro Bias Drift Gyro Bias Drift Histogram

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
32044 ACIS-67 HETG Cygnus X-2 OK/NA OK
32041 ACIS-0123 NONE Perseus cluster OK OK
32039 ACIS-3678 NONE NGC4548 OK OK
30050 ACIS-67 NONE EXO 0748-676 OK OK
30299 ACIS-0123 NONE Perseus cluster OK OK
32037 ACIS-67 NONE EXO 0748-676 OK OK
32042 ACIS-0123 NONE Perseus cluster OK OK
31285 ACIS-67 NONE 2MASX J17345436+5045210 OK OK
30255 ACIS-0123 NONE Center of COSMOS-Web OK OK
32043 ACIS-01236 NONE Perseus cluster OK OK
30312 ACIS-0123 NONE Perseus cluster OK OK
32040 ACIS-0123 NONE Center of COSMOS-Web OK OK
31116 ACIS-67 NONE ZTF J0546+3843 OK OK
32052 ACIS-0123 NONE HEP G173.810-01.525 OK OK
31160 ACIS-3678 NONE GRB 221009A OK OK
32051 ACIS-0123 NONE HEP G173.766-01.783 OK OK
30289 ACIS-0123 NONE Perseus cluster OK OK
32057 ACIS-3678 NONE GRB 221009A OK OK
31593 ACIS-3678 NONE GRB 221009A OK OK
31256 ACIS-67 NONE IRAS04416+1215 OK OK
32058 ACIS-67 NONE GRB 221009A OK OK
29957 ACIS-678 NONE 6dFGS gJ031612.2-380111 OK OK
30243 ACIS-0123 NONE Center of COSMOS-Web OK OK
30245 ACIS-0123 NONE Center of COSMOS-Web OK OK
29889 ACIS-67 NONE NGVS J122636.42+125512.9 OK OK

Trending

This week's focus is PCAD

Last reported on Oct 02.

Only the most interesting or representative msids are shown below. For a full listing choose the bulletted link.


MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
afsspc2von0.0044.556e-043.51 +/- 0.14-(3.19+/-4.27)e-5VFSS POWER CONV 2 VOLTAGE
 off0.0015.434e-040.01 +/- 0.14(0.00+/-0.00)e0
airu2g1ion-0.4830.008(1.01+/-0.06)e2-0.07 +/- 0.02mAIRU-2 GYRO
 off-0.2420.0749.74 +/- 4.62-0.17 +/- 0.37
airu2g2ion0.3930.036(1.06+/-0.23)e20.08 +/- 0.06mAIRU-2 GYRO
 off-0.1960.0769.74 +/- 4.74-0.12 +/- 0.33
airu2g2ton-0.0710.009(3.41+/-0.06)e2(6.73+/-63.40)e-5KIRU-2 GYRO
 off0.0710.045(2.93+/-0.03)e2-0.03 +/- 0.02

MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
aogyrct1 -0.2571.03814.97 +/- 840.44-14.30 +/- 11.10CNTSACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 1
aogyrct2 -2.9421.6446.39 +/- 1330.88-5.05 +/- 25.12CNTSACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 2
aogyrct3 3.0423.053-20.16 +/- 2471.4316.52 +/- 35.41CNTSACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 3
aogyrct4 0.1521.188-34.16 +/- 961.43-2.06 +/- 6.36CNTSACCUMULATED GYRO PULSE COUNTS FROM OBC SELECTED GYRO 4

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