MTA Monitoring Report 04/24/26 - 04/30/26

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) (910,239) (178,149) (726,537) (526,66) (803,225) (99,899) (665,25) (21,95)     (849,169) (335,412)    
Flickering Warm Pixels (283,278) (802,665) (787,181) (427,125) (353,201) (104,31) (837,378) (318,53) (394,80) (811,637) (617,159) (680,391)   (877,408) (233,102) (357,303) (367,511) (161,206) (282,385) (369,376) (263,317) (414,5) (80,130) (1000,214) (884,31) (287,164) (670,387) (126,856) (182,474) (295,978) (893,490) (666,165) (136,65) (326,978) (597,187) (332,324) (447,769) (139,109) (881,53) (838,239) (275,393) (541,41) (675,304) (333,466)  
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

7 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 04/24/26 04/25/26 04/26/26 04/27/26 04/28/26 04/29/26 04/30/26 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
1CRBT     677.96     677.96   (136.15)
183.15		 (131.15)
193.15		 KCOLD RADIATOR TEMP. B
1CRBTC     (99.90)     (79.21)   (136.15)
183.15		 (131.15)
193.15		 CCOLD RADIATOR TEMP. B
AFTBLKHDT   309.23         309.01 (260.2)
303.0		 (250.2)
308.0		 TEMPAFT BULKHEAD TEMP
AWD1TQI     (-3.39)         (-1.22)
1.22		 (-3.3)
3.3		 AMPWHEEL 1 TORQUE CURRENT
AWD4TQI   (-3.43)           (-1.22)
1.22		 (-3.3)
3.3		 AMPWHEEL 4 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) (0.00) (0.00) (0.00) (36.12)
37.0		 (36.0)
38.0		 DBMTRANSMITTER B OUTPUT POWER
HRMAAVG     (304.43) (303.80)       (306.0)
308.0		 (305.0)
309.0		 KAVG OF HRMA METRICS
IMHBLV   (0.00)           (126.0)
128.0		 (125.0)
129.0		 (2IMHBLV)Imaging Bot & Top MCP HV Monitor
MZOBACONE 313.64   313.37 311.24 308.45 311.99 315.47 (260.2)
303.0		 (250.2)
308.0		 CONE-Z SIDE OBA CONE
OBAAVG 305.11     304.36   303.63   (282.5)
300.0		 (281.4)
301.0		 KOBA/TFTE TEMP
OBACONEAVG       309.46 305.38     (282.5)
300.0		 (281.8)
301.0		 KOBA CONE AVG TEMP
OBADIAGRAD 4.81 4.45 4.53 4.80 4.89 4.38 4.12 (-1.11)
3.5		 (-2.78)
3.9		 KOBA DIAM GRAD
PZOBACONE 309.72 311.13 310.15 308.78   308.06 311.67 (260.2)
303.0		 (250.2)
308.0		 CONE+Z SIDE OBA CONE
TFTERANGE     49.00 47.87 46.57 48.90 49.16 (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
31399 ACIS-56789 LETG MKN421 OK/NA OK
30024 ACIS-0123 NONE Abell 3558 SE OK OK
32312 ACIS-01237 NONE DESI J090.9854-35.9683 OK OK
32313 ACIS-01237 NONE DESI J090.9854-35.9683 OK OK
31734 ACIS-56789 LETG MKN421 OK/NA OK
32314 ACIS-3678 NONE NGC4941 OK OK
32314 ACIS-3678 NONE NGC4941 OK OK
32315 ACIS-3678 NONE NGC4941 OK OK
29530 HRC-I LETG HZ43 OK/NA OK
31083 ACIS-67 NONE NVSS J081604-235003 OK OK
29867 ACIS-3678 NONE AM1006-380 OK OK
32308 ACIS-3678 NONE AM1006-380 OK OK
30189 ACIS-67 NONE NGC5728 OK OK
30189 ACIS-67 NONE NGC5728 OK OK
32316 ACIS-0123 NONE Abell 3558 SE OK OK
32321 ACIS-67 NONE NGC 424 OK OK
30199 ACIS-67 NONE NGC5728 OK OK
32320 ACIS-67 NONE NGC5728 OK OK
30046 ACIS-2367 NONE SPT-CLJ2223-5015 OK OK
29883 ACIS-2567 NONE SDSS J152322.13+124133.2 OK OK
32319 ACIS-2367 NONE SPT-CLJ2223-5015 OK OK
31877 ACIS-3678 NONE NGC1317 OK OK
31106 ACIS-3678 NONE EP260321a OK OK
32317 ACIS-0123 NONE MOOJ1415-1422 OK OK
31735 ACIS-56789 LETG MKN421 OK/NA OK

Trending

This week's focus is Ground Computations

Last reported on Feb 12.

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


MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
1dppwra -0.4970.00633.42 +/- 6.050.04 +/- 0.13WDPA POWER A
1dppwrb -0.5360.00729.10 +/- 7.01-0.21 +/- 0.17WDPA POWER B

MSIDMeanRMSDelta/YrDelta/Yr/YrUnitDescription
flexadif 0.1170.00765.47 +/- 5.47-0.01 +/- 0.07KDIFF FLEX A & SET
flexbdif 0.2640.00661.84 +/- 4.94-0.03 +/- 0.08KDIFF FLEX B & SET
flexcdif 0.1650.01274.16 +/- 9.000.08 +/- 0.23KDIFF FLEX C & SET

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