MTA Monitoring Report 08/14/15 - 08/20/15

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: 1.626e-6 CTI/year (4.455e-9 CTI/day)
Detrended slope: 1.573e-6 CTI/year (4.310e-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         (786,228)          
Current Warm Pixels (692,141) (667,782) (153,205) (143,700) (910,239) (802,665) (726,537) (21,95)   (607,281) (357,303) (369,376) (263,317) (161,206) (341,427) (1000,214) (335,412)    
Flickering Warm Pixels   (427,125) (353,201) (526,66) (811,637)   (669,577) (367,511) (233,314) (258,797)     (182,474) (197,241) (881,53)  
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, 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

7 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 08/14/15 08/15/15 08/16/15 08/17/15 08/18/15 08/19/15 08/20/1 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
1DAHBCU 0.54 0.54 0.52 0.54 0.56 0.44 0.46 (-998)
0.20		(-999)
999		 AMP #DA HEATER CURRENT B
1DAHBVO 6.83 6.95 6.71 6.83 7.31 5.27 5.51 (-998)
1.0		(-999)
999		 V #DA HEATER VOLTAGE B
1DAHHBVO 28.55 29.02 28.70 28.86 28.70 28.86 28.86 (-998)
1.0		(-999)
999		 V #DA HOUSING HEATER INPUT VOLTAGE B
RSRFALV     (150.00)   (150.00)     (172.0)
174.0		(171.0)
175.0		 V #Range switch setting (2RSRFALV)
RSRFALV 190.00 190.00 190.00 190.00 190.00 190.00 190.00 (172.0)
174.0		(171.0)
175.0		 V #Range switch setting (2RSRFALV)
OHRTHR27 297.34 297.34 297.35 297.34 297.35 297.34 297.34 (295.48)
297.15		(279.37)
307.15		 K #RT 20 : PERISCOPE
OHRTHR42 294.66 294.66 294.61 294.64 294.63 294.53 294.66 (292.15)
294.37		(279.37)
307.15		 K #RT 133: PERISCOPE
OHRTHR43 294.70 294.64 294.55 294.63 294.58 294.38 294.76 (291.59)
293.26		(279.37)
307.15		 K #RT 134: PERISCOPE
TCYLAFT6   310.16 314.47 310.86 311.56 311.56 313.64 (259.93)
309.93		(226.59)
348.82		 K #CNT CYL TEMP:16-IN FWD OF SC-TS FIT-6


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
17857 ACIS-456789 HETG AX J1745.6-2901 OK OK
16666 ACIS-235678 NONE WISEP J190648.47+401106.8 OK OK
17116 ACIS-23678 NONE CGCG 292-057 OK OK
16362 ACIS-7 NONE Crab OK OK
16663 ACIS-456789 NONE L577-71 OK OK
16741 ACIS-456789 HETG H1743-322 OK OK
17003 ACIS-23678 NONE UGC12732 OK OK
16965 ACIS-7 NONE SgrA* OK OK
17494 ACIS-01236 NONE PLCKG287+.0 +32.9 OK OK
17067 ACIS-23678 NONE PSS 0955+5940 OK OK
17239 ACIS-0123 NONE Sgr A complex 2 OK OK

Trending

This week's focus is Spacecraft Bus and Subsystem Trends

Last reported on May 28.

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