MTA Monitoring Report 11/28/14 - 12/04/14

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: 1.650e-6 CTI/year (4.520e-9 CTI/day)
Detrended slope: 1.553e-6 CTI/year (4.255e-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) (802,665) (726,537) (21,95)       (335,412)    
Flickering Warm Pixels (143,700) (427,125)   (703,739) (811,637)   (669,577) (357,303) (282,385) (369,376) (607,281) (263,317) (367,511) (161,206) (258,797) (341,427)     (182,474) (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, 5 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 138 kkm.



SIM Movements

7 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 11/28/14 11/29/14 11/30/14 12/01/14 12/02/14 12/03/14 12/04/14 yellow limits
(lower)
upper
red limits
(lower)
upper
Units Description
RSRFALV           (141.00) (141.00) (172.0)
174.0
(171.0)
175.0
V Range switch setting (2RSRFALV)
RSRFALV 185.00 185.00 185.00 185.00 185.00 185.00 185.00 (172.0)
174.0
(171.0)
175.0
V Range switch setting (2RSRFALV)
OHRTHR27 297.34 297.33 297.34 297.33 297.32 297.33 297.34 (295.48)
297.15
(279.37)
307.15
K RT 20 : PERISCOPE
OHRTHR42 294.59 294.61 294.63 294.54 294.51 294.51 294.66 (292.15)
294.37
(279.37)
307.15
K RT 133: PERISCOPE
OHRTHR43 294.52 294.61 294.64 294.43 294.31 294.37 294.74 (291.59)
293.26
(279.37)
307.15
K RT 134: PERISCOPE
3TSMXCET 268.30   270.79 270.79 273.29 273.29 270.79 (153.15)
263.15
(148.15)
353.15
K -X TURTLE SHELL NR HRC CEA
3TSMXSPT 310.70 298.23 308.21 310.70 310.70 310.70 308.21 (203.15)
294.15
(148.15)
354.15
K -X TURTLE SHELL NR ACIS SS


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
16293 ACIS-01236 NONE 1RXS J021649.0+703552 OK OK
16828 ACIS-01237 NONE 2FGL J0340.5+5307 OK OK
16972 ACIS-3678 NONE GALEX J025325.8-001357 OK OK
16189 ACIS-0123 NONE Chandra Deep Field-South OK OK
17005 ACIS-7 NONE IIZw40 OK OK
17324 ACIS-56789 HETG Capella CAL OK
17168 ACIS-23678 NONE A2142 NE OK OK
14506 ACIS-23678 NONE HE1104-1805 OK OK
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

Trending

This week's focus is Ground Computed Gradients..

Last reported on SEP 18.

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