MTA Monitoring Report 12/19/25 - 12/25/25

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 (786,117) (802,665) (910,239) (985,393) (427,125) (99,899) (726,537) (178,149) (526,66) (837,378) (803,225) (811,637) (21,95)     (670,387) (849,169) (1000,214) (335,412)    
Flickering Warm Pixels (283,278) (171,937) (787,181) (665,25) (104,31) (318,53) (394,80) (680,391) (617,159)   (367,511) (357,303) (233,102) (233,81) (233,227) (641,669) (554,484) (282,385) (369,376) (161,206) (258,797) (263,317) (166,738) (439,452) (877,408) (728,340) (669,577) (270,726) (884,31) (874,186) (126,856) (275,393) (198,699) (447,769) (136,65) (326,978) (182,474) (34,645) (893,490) (332,324) (333,466) (139,109) (597,187) (666,165) (178,399) (838,239) (541,41) (675,304) (197,241) (295,978) (881,53)  
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, 6 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

8 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 12/19/25 12/20/25 12/21/25 12/22/25 12/23/25 12/24/25 12/25/25 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
AWD1TQI   (-3.43)         (-3.39) (-1.22)
1.22		 (-3.3)
3.3		 AMPWHEEL 1 TORQUE CURRENT
AWD6TQI   (-3.47)   (-3.43)     (-3.47) (-1.22)
1.22		 (-3.3)
3.3		 AMPWHEEL 6 TORQUE CURRENT
CTXBPWR           (0.00) (0.00) (36.12)
37.0		 (36.0)
38.0		 DBMTRANSMITTER B OUTPUT POWER
MZOBACONE 310.43 310.16 313.01 313.77 309.06 309.72 313.10 (260.2)
303.0		 (250.2)
308.0		 CONE-Z SIDE OBA CONE
OBAAVG 302.27 301.99     302.09 301.53   (282.5)
300.0		 (281.4)
301.0		 KOBA/TFTE TEMP
OBACONEAVG         306.74 306.82   (282.5)
300.0		 (281.8)
301.0		 KOBA CONE AVG TEMP
OBADIAGRAD 4.79 4.74 4.67 4.44 4.32 5.09 4.02 (-1.11)
3.5		 (-2.78)
3.9		 KOBA DIAM GRAD
PZOBACONE     309.54 309.59     309.58 (260.2)
303.0		 (250.2)
308.0		 CONE+Z SIDE OBA CONE
TCYZ_RW1           (276.80)   (288.15)
363.15		 (278.15)
404.15		 KRWA -1 TEMP (RWA CRNR COMP)
TCYZ_RW6 (275.34)       (274.98) (277.89) (276.07) (288.15)
363.15		 (278.15)
404.15		 KRWA -6 TEMP (RWA CRNR COMP)
TFTERANGE 45.68 47.99     46.24 47.53 49.23 (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
29889 ACIS-67 NONE NGVS J122636.42+125512.9 OK OK
32059 ACIS-67 NONE IRAS04416+1215 OK OK
32049 ACIS-678 NONE B2.4 0553+23 OK OK
30115 ACIS-23567 NONE GW170817 OK OK
32060 ACIS-67 NONE IRAS04416+1215 OK OK
31272 ACIS-67 NONE SDSS J160318.74+180904.9 OK OK
31461 ACIS-23567 NONE ACT-CL J0223.9-3921 OK OK
32047 ACIS-67 NONE IIZw171 OK OK
30311 ACIS-0123 NONE Perseus cluster OK OK
32048 ACIS-67 NONE PG2304+042 OK OK
32055 ACIS-0123 NONE Perseus cluster OK OK
32054 ACIS-0123 NONE Perseus cluster OK OK
32050 ACIS-67 NONE SDSSJ233504.22-084506.4 OK OK
32053 ACIS-0123 NONE Center of COSMOS-Web OK OK
32056 ACIS-0123 NONE Perseus cluster OK OK
31290 ACIS-67 NONE 2MASX J07040344+3830246 OK OK
32062 ACIS-5678 NONE SDSS J142846.71+172353.1 OK OK
29826 ACIS-2367 NONE SN 1986J OK OK
30087 ACIS-456789 HETG TV Cassiopeia OK/NA OK
32075 ACIS-67 NONE AT2025aarm OK OK
31141 ACIS-67 NONE IC 443 OK OK
30192 ACIS-67 NONE NGC5728 OK OK
32073 ACIS-67 NONE IC 443 OK OK
32073 ACIS-67 NONE IC 443 OK OK
32070 ACIS-67 NONE NGC5728 OK OK
32061 ACIS-0123 NONE CIZA J0635.0+2231 OK OK
30200 ACIS-67 NONE NGC5728 OK OK
29657 ACIS-3678 NONE NGC4536 OK OK
31397 ACIS-5678 LETG MKN421 OK/NA OK

Trending

This week's focus is Ground Computed Gradients

Last reported on Oct 09.

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


MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
hcapgrd1 -1.0410.3613.84 +/- 245.60(1.10+/-1.70)e-4KRT100-RT101: HRMA CAP circum
hcapgrd2 -1.0190.3333.76 +/- 226.58(6.20+/-4.65)e-4KRT100-RT104: HRMA CAP ridial
hcapgrd3 0.2050.106-0.85 +/- 71.74-(2.08+/-2.15)e-4KRT101-RT102: HRMA CAP circum
hcapgrd4 0.0220.041-0.08 +/- 27.91(5.84+/-4.46)e-4KRT101-RT104: HRMA CAP ridial
hcapgrd5 0.2240.066-0.64 +/- 44.92(1.30+/-2.39)e-4KRT102-RT103: HRMA CAP circum
hcapgrd6 -0.2540.0990.88 +/- 67.14(5.56+/-5.70)e-4KRT102-RT105: HRMA CAP ridial
hcapgrd7 -0.4300.1601.49 +/- 109.09-(3.09+/-16.99)e-5KRT103-RT101: HRMA CAP circum

MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
hfapgrd1 0.7870.268-2.89 +/- 182.30-(6.51+/-141.10)e-6KRT1-RT2: HRMA Forward Aperture Plate
hfapgrd2 0.0990.043-0.34 +/- 29.280.01 +/- 0.00KRT1-RT4: HRMA Forward Aperture Plate
hfapgrd3 -0.5940.1912.20 +/- 130.19-(1.00+/-1.84)e-4KRT2-RT3: HRMA Forward Aperture Plate
hfapgrd4 -0.1940.0710.77 +/- 47.930.00 +/- 0.00KRT2-RT5: HRMA Forward Aperture Plate
hfapgrd5 -0.1930.0820.69 +/- 56.01(1.34+/-14.73)e-5KRT3-RT1: HRMA Forward Aperture Plate
hfapgrd6 0.2800.087-1.03 +/- 59.420.01 +/- 0.00KRT3-RT6: HRMA Forward Aperture Plate
hfapgrd7 0.4940.159-1.78 +/- 107.89-(1.83+/-21.83)e-5KRT4-RT5: HRMA Forward Aperture Plate
hfapgrd8 -0.1190.0390.41 +/- 26.20(3.01+/-26.16)e-5KRT5-RT6: HRMA Forward Aperture Plate
hfapgrd9 -0.3750.1251.37 +/- 84.77(4.87+/-11.06)e-5KRT6-RT4: HRMA Forward Aperture Plate

MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
hsstrtgrd1 13.1564.553-56.07 +/- 3457.57-0.01 +/- 0.02KRT75-RT76: Spacecraft Struts
hsstrtgrd2 -0.9453.190-1.61 +/- 2421.810.01 +/- 0.02KRT76-RT77: Spacecraft Struts
hsstrtgrd3 -25.88310.270(1.00+/-77.99)e2-0.01 +/- 0.01KRT77-RT78: Spacecraft Struts
hsstrtgrd4 7.9933.348-25.00 +/- 2542.51-0.02 +/- 0.02KRT78-RT79: Spacecraft Struts
hsstrtgrd5 9.8242.879-33.48 +/- 2186.840.04 +/- 0.02KRT79-RT80: Spacecraft Struts
hsstrtgrd6 -4.1451.79515.95 +/- 1362.84-(9.70+/-38.60)e-4KRT80-RT75: Spacecraft Struts

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