MTA Monitoring Report 03/27/15 - 03/05/15

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: 1.728e-6 CTI/year (4.734e-9 CTI/day)
Detrended slope: 1.548e-6 CTI/year (4.241e-9 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     (726,537) (21,95)       (335,412) (182,474) (197,241) (881,53)  
Flickering Warm Pixels (692,141) (153,205) (143,700) (910,239) (802,665) (104,31)   (419,163) (247,364) (607,281) (357,303) (369,376) (669,577) (263,317) (367,511) (161,206) (341,427)     (833,325) (356,902) (150,374) (636,819)
Current Hot Pixels                    
Flickering Hot Pixels                    
Warm column candidates         884 510 512 1022   512 1022    
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

15 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 02/27/15 02/28/15 03/01/15 03/02/15 03/03/15 03/04/15 03/05/15 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
1DAHBCU 0.46 0.56           (-998)
0.20		(-999)
999		 AMP #DA HEATER CURRENT B
1DAHBVO 5.99 6.83           (-998)
1.0		(-999)
999		 V #DA HEATER VOLTAGE B
1DAHHBVO 28.39 27.92           (-998)
1.0		(-999)
999		 V #DA HOUSING HEATER INPUT VOLTAGE B
OHRTHR27 297.34 297.34 297.34 297.33 297.34 297.34 297.34 (295.48)
297.15		(279.37)
307.15		 K #RT 20 : PERISCOPE
OHRTHR42 294.67 294.66 294.66 294.69 294.66 294.67 294.66 (292.15)
294.37		(279.37)
307.15		 K #RT 133: PERISCOPE
OHRTHR43 294.75 294.69 294.69 294.78 294.67 294.74 294.66 (291.59)
293.26		(279.37)
307.15		 K #RT 134: PERISCOPE


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
16030 ACIS-3678 NONE NGC 4339 OK OK
17020 ACIS-235678 NONE M67 - S364 OK OK
16536 ACIS-456789 HETG RCW38/IRS2 OK OK
17478 ACIS-01236 NONE A1795-A OK OK
16075 ACIS-7 NONE SDSSJ1045+3519 OK OK
17178 ACIS-3 NONE RXCJ090953.9+310558 OK OK
16992 ACIS-23678 NONE NGC4183 OK OK
17320 ACIS-7 NONE GJ176 OK OK
17083 ACIS-5678 NONE HATLASJ091043.0-000322 OK OK
17380 ACIS-7 NONE E0102-72 S3,-120,1,0,0 CAL OK
16533 ACIS-456789 HETG HD 206267 OK OK
17176 ACIS-01236 NONE J113121.4+333447 OK OK
16061 ACIS-2367 NONE 3C272 OK OK
17319 ACIS-7 NONE GJ176 OK OK
17094 ACIS-235678 NONE FBQS J090313.9+312015 OK OK
17063 ACIS-5678 NONE PGC 032873 OK OK
15718 ACIS-7 NONE HD 41004 OK OK
16062 ACIS-2367 NONE 3C277 OK OK
17383 ACIS-56789 LETG MKN421 CAL OK
17043 ACIS-678 NONE SDSS J0830+1654 OK OK
16345 ACIS-0123 NONE NGC 1433 OK OK

Trending

This week's focus is Spacecraft Bus and Subsystem Trends.

Last reported on Dec 11.

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

Min/max envelopes in dark blue appear on the trending plots. The envelopes are 4th degree fits to the monthly minimum and maximum values for each MSID. The final polynomial form and binning are still being experimented with. We will soon add to the trending pages a report of the fits and predictions they give on future limit violations. The light blue curve is our original smoothing of all the data over 30 day moving boxcars. The green/yellow line is a linear fit to all the data; the break occurs at a limit change.








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