MTA Monitoring Report 10/03/14 - 10/09/14

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: 1.706e-6 CTI/year (4.674e-9 CTI/day)
Detrended slope: 1.575e-6 CTI/year (4.315e-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   (802,665)       (607,281) (357,303) (369,376) (669,577) (263,317) (367,511) (280,313) (161,206) (258,797) (341,427)   (335,412) (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, 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 138 kkm.



SIM Movements

7 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 10/03/14 10/04/14 10/05/14 10/06/14 10/07/14 10/08/14 10/09/14 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
5EPHINT 342.97 341.76     342.31 342.97 341.76 (261.15)
331.15		(258.15)
341.15		 K EPHIN TEMP
HKP5V (5.06) (5.06)     (5.06) (5.06) (5.06) (5.08)
5.15		(5.06)
5.17		 V HK 5 Volts Rail - Voltage
HKP5I 54.06       53.28 53.67 53.67 (35.78)
52.97		(32.78)
55.97		 AMP HK 5 Volts Rail - Current
HKEBOXTEMP 349.02 347.63     347.63 349.02 347.63 (268.15)
336.15		(253.15)
346.15		 K EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
HKABIASLEAKI 1.00 1.00 1.00 1.00 1.00 1.00 1.00 (-100.0)
0.50		(-200.0)
0.70		 uA EPHIN HOUSEKEEPING A-BIAS: LEAKAGE CURRENT (5EHSE400)
HKBBIASLEAKI     1.00 1.00 0.69     (-100.0)
0.50		(-200.0)
0.70		 uA EPHIN HOUSEKEEPING B-BIAS: LEAKAGE CURRENT (5EHSE500)
HKCBIASLEAKI 42.90 45.20 45.20 45.20 45.20 40.24 37.76 (-100.0)
30.0		(-200.0)
40.0		 uA EPHIN HOUSEKEEPING C-BIAS: LEAKAGE CURRENT (5EHSE600)
HKDBIASLEAKI 45.10 45.10 45.10 45.10 45.10 45.10 45.10 (-100.0)
30.0		(-200.0)
40.0		 uA EPHIN HOUSEKEEPING D-BIAS: LEAKAGE CURRENT (5EHSE700)
HKEBIASLEAKI 45.10 45.10 45.10 45.10 45.10 45.10 44.57 (-100.0)
30.0		(-200.0)
40.0		 uA EPHIN HOUSEKEEPING E-BIAS: LEAKAGE CURRENT (5EHSE800)
TEIO 348.12 348.12 348.12 351.27 352.84     (252.15)
347.26		(249.37)
361.15		 K EPHIN ELECTRONICS HOUSING TEMP
LLDIALV 138.00 138.00 138.00 138.00 138.00 138.00 138.00 (130.0)
132.0		(129.0)
133.0		 (2LLDIALV) Lower level disc setting
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 297.35 297.35 297.33 297.33 297.34 297.35 297.35 (295.48)
297.15		(279.37)
307.15		 K RT 20 : PERISCOPE
OHRTHR42 294.72 294.66 294.53 294.48 294.59 294.64 294.65 (292.15)
294.37		(279.37)
307.15		 K RT 133: PERISCOPE
OHRTHR43 294.86 294.69 294.30 294.16 294.56 294.68 294.69 (291.59)
293.26		(279.37)
307.15		 K RT 134: PERISCOPE
3TSMXCET 270.79 268.30 273.29 263.31   270.79   (153.15)
263.15		(148.15)
353.15		 K -X TURTLE SHELL NR HRC CEA
3TSMXSPT 308.21 308.21 310.70 298.23   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
17422 ACIS-01236 NONE IGR J11014-6103 OK OK
15748 ACIS-7 NONE 47 Tuc OK OK
17421 ACIS-01236 NONE IGR J11014-6103 OK OK
16176 ACIS-0123 NONE Chandra Deep Field-South OK OK
16175 ACIS-0123 NONE Chandra Deep Field-South OK OK
16240 ACIS-35678 NONE NGC 682 OK OK
16101 ACIS-23678 NONE J002434.9+325842 OK OK
17169 ACIS-23678 NONE A2142 NE OK OK
17006 ACIS-7 NONE IC750 OK OK
15807 ACIS-235678 NONE GRB 140930B OK OK
17249 ACIS-0123 NONE Rho Oph Cloud A OK OK
16156 ACIS-012367 NONE SWIFT J0455.8-753 OK OK
16178 ACIS-0123 NONE Chandra Deep Field-South OK OK

Trending

This week's focus is Sun Angle Correlations.

Last reported on Aug 07.

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

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