MTA Monitoring Report 02/14/15 - 02/19/15

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: 1.631e-6 CTI/year (4.468e-9 CTI/day)
Detrended slope: 1.555e-6 CTI/year (4.260e-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)    
Flickering Warm Pixels (692,141) (667,782) (153,205) (143,700) (427,125) (910,239) (802,665)   (703,739)   (357,303) (369,376) (263,317) (161,206) (1000,214)   (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, 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.



Telemetry

New violations or new extrema are shown in blue cells.

MSID 02/13/15 02/14/15 02/15/15 02/16/15 02/17/15 02/18/15 02/19/15 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
1DAHBCU 0.56 0.56 0.50   1.48 0.54 0.54 (-998)
0.20		(-999)
999		 AMP #DA HEATER CURRENT B
1DAHBVO 7.19 7.43 6.47   22.64 6.83 6.83 (-998)
1.0		(-999)
999		 V #DA HEATER VOLTAGE B
1DAHHBVO 28.39 28.39 27.77   27.77 28.08 28.24 (-998)
1.0		(-999)
999		 V #DA HOUSING HEATER INPUT VOLTAGE B
IMHVLV (99.00) (99.00) (99.00) (99.00) (99.00) (80.00) (80.00) (126.0)
128.0		(125.0)
129.0		 (2IMHVLV) #Imaging bot MCP HV monitor
IMHBLV (105.00) (105.00) (105.00) (105.00) (105.00) (87.00) (87.00) (126.0)
128.0		(125.0)
129.0		 (2IMHBLV) #Imaging bot and top MCP HV monitor
S2HVLV (83.00) (83.00) (83.00) (83.00) (83.00) (64.00) (83.00) (126.0)
128.0		(125.0)
129.0		 (2S2HVLV) #Shield PMT 2 HV monitor
RSRFALV           (0.00)   (172.0)
174.0		(171.0)
175.0		 V #Range switch setting (2RSRFALV)
RSRFALV 185.00 185.00 185.00 185.00 185.00 186.00 185.00 (172.0)
174.0		(171.0)
175.0		 V #Range switch setting (2RSRFALV)
OHRTHR27 297.32 297.34 297.34 297.34 297.33 297.33 297.31 (295.48)
297.15		(279.37)
307.15		 K #RT 20 : PERISCOPE
OHRTHR42 294.52 294.66 294.67 294.69 294.67 294.64 294.48 (292.15)
294.37		(279.37)
307.15		 K #RT 133: PERISCOPE
OHRTHR43 294.36 294.71 294.76 294.79 294.71 294.66 294.22 (291.59)
293.26		(279.37)
307.15		 K #RT 134: PERISCOPE


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
17596 ACIS-0123 NONE MACSJ1149.5+2223 OK OK
17598 ACIS-01236 NONE Abell 1795 outskirts OK OK
16661 ACIS-56789 NONE GJ 1142 A OK OK
16963 ACIS-7 NONE SgrA* OK OK
17485 ACIS-67 HETG Ser X-1 OK OK
17248 ACIS-235678 NONE 3XMM J172751.4-141439 OK OK
16448 ACIS-012367 NONE 30 Doradus OK OK
17599 ACIS-01236 NONE Abell 1795 outskirts OK OK
16069 ACIS-2367 NONE He 2-10 OK OK
17462 ACIS-0123 NONE NGC4254 OK OK
16091 ACIS-456789 NONE Swift J1644+57 OK OK
16685 ACIS-23678 NONE SDSS J144342.74+150938.6 OK OK
17595 ACIS-0123 NONE MACSJ1149.5+2223 OK OK
16997 ACIS-23678 NONE NGC5023 OK OK
16149 ACIS-01236 NONE RXJ0132.6-0804 OK OK

Trending

This week's focus is PCAD.

Last reported on Nov 27.

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