MTA Monitoring Report 12/05/14 - 12/11/14

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: 1.642e-6 CTI/year (4.499e-9 CTI/day)
Detrended slope: 1.443e-6 CTI/year (3.951e-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 (692,141) (153,205) (910,239) (726,537) (21,95)            
Flickering Warm Pixels   (427,125) (802,665) (526,66)     (669,577) (607,281) (357,303) (369,376) (263,317) (161,206) (341,427)   (335,412) (197,241) (881,53) (139,109)  
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, 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 12/05/14 12/06/14 12/07/14 12/08/14 12/09/14 12/10/14 12/11/14 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
RSRFALV       (141.00) (9.00)     (172.0)
174.0		(171.0)
175.0		 V #Range switch setting (2RSRFALV)
RSRFALV 185.00 185.00 185.00 190.00 190.00 190.00   (172.0)
174.0		(171.0)
175.0		 V #Range switch setting (2RSRFALV)
OHRTHR27 297.35 297.33 297.35 297.34 297.35 297.35 297.34 (295.48)
297.15		(279.37)
307.15		 K #RT 20 : PERISCOPE
OHRTHR42 294.67 294.58 294.67 294.67 294.72 294.69 294.68 (292.15)
294.37		(279.37)
307.15		 K #RT 133: PERISCOPE
OHRTHR43 294.78 294.46 294.73 294.71 294.89 294.79 294.74 (291.59)
293.26		(279.37)
307.15		 K #RT 134: PERISCOPE
3TSMXCET 273.29 268.30   275.78 268.30 275.78 273.29 (153.15)
263.15		(148.15)
353.15		 K #-X TURTLE SHELL NR HRC CEA
3TSMXSPT 313.19 310.70   310.70 305.71 313.19 310.70 (203.15)
294.15		(148.15)
354.15		 K #-X TURTLE SHELL NR ACIS SS


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
17474 ACIS-01236 NONE Abell 1986 OK OK
17492 ACIS-23678 NONE A2142 NE OK OK
16671 ACIS-0123 NONE CW Cep OK OK
17486 ACIS-012367 NONE 30 Doradus OK OK
16134 ACIS-01236 NONE UGC 03957 WEST OK OK
17059 ACIS-5678 NONE MCG+03-07-047 OK OK
16153 ACIS-01236 NONE RXJ0530.6-2226 OK OK
16267 ACIS-01237 NONE J030654.87+010833.7 OK OK
16155 ACIS-01236 NONE RXJ2043.2-2144 OK OK
15726 ACIS-235678 NONE 2MASS 1315-2649 OK OK
17555 ACIS-012367 NONE 30 Doradus OK OK
17172 ACIS-23567 NONE Abell 1664 OK OK
17558 ACIS-678 NONE CXO J122518.6+144545 OK OK
17089 ACIS-7 NONE 0234+285 OK OK
16150 ACIS-01236 NONE RXJ0507.7-0915 OK OK
17556 ACIS-0123 NONE Chandra Deep Field-South OK OK
16974 ACIS-3678 NONE GALEX J024352.8-003703 OK OK

Trending

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

Last reported on SEP 25.

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