MTA Monitoring Report 05/01/15 - 05/07/15

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: 1.597e-6 CTI/year (4.375e-9 CTI/day)
Detrended slope: 1.567e-6 CTI/year (4.293e-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 (153,205) (143,700) (910,239) (802,665) (726,537) (21,95)            
Flickering Warm Pixels (692,141) (667,782)   (526,66) (811,637)   (669,577) (357,303) (369,376) (607,281) (263,317) (367,511) (161,206) (341,427) (1000,214) (335,412) (833,325) (182,474) (197,241) (356,902) (881,53) (838,239)  
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, 4 peaks are observed.

Weekly focal plane temperature with sun angle and altitude overplotted. Sun angle is the solar array angle, that is the angle between the sun and the optical axis (+X axis). Altitude varies from 10 kkm to 135 kkm.



SIM Movements

9 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 05/01/15 05/02/15 05/03/15 05/04/15 05/05/15 05/06/15 05/07/15 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
1DAHBCU         1.10 0.40 0.40 (-998)
0.20		(-999)
999		 AMP DA HEATER CURRENT B
1DAHBVO         15.93 4.31 4.79 (-998)
1.0		(-999)
999		 V DA HEATER VOLTAGE B
1DAHHBVO         28.55 28.55 28.55 (-998)
1.0		(-999)
999		 V DA HOUSING HEATER INPUT VOLTAGE B
OHRTHR27 297.34 297.34 297.35 297.33 297.34 297.34 297.34 (295.48)
297.15		(279.37)
307.15		 K RT 20 : PERISCOPE
OHRTHR42 294.60 294.61 294.67 294.68 294.66 294.66 294.63 (292.15)
294.37		(279.37)
307.15		 K RT 133: PERISCOPE
OHRTHR43 294.56 294.61 294.75 294.78 294.69 294.69 294.62 (291.59)
293.26		(279.37)
307.15		 K RT 134: PERISCOPE


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
14482 ACIS-7 NONE Cassiopeia A OK OK
17639 ACIS-7 NONE Cas A CCO OK OK
17625 ACIS-01236 NONE Abell 1795 outskirts OK OK
17658 ACIS-5678 NONE GRB150423A OK OK
17144 ACIS-01236 NONE Cygnus A - E Hotspot OK OK
17611 ACIS-01236 NONE Abell 1795 outskirts OK OK
16762 ACIS-678 NONE CXOU J171405.7-381031 CC OK
16947 ACIS-2367 NONE G1.9+0.3 OK OK
17651 ACIS-2367 NONE G1.9+0.3 OK OK
16063 ACIS-2367 NONE 3C277.2 OK OK
17653 ACIS-23567 NONE NGC 5044 OK OK

Trending

This week's focus is PCAD.

Last reported on Feb 19.

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.