MTA Monitoring Report 08/01/14 - 08/07/14

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: 1.673e-6 CTI/year (4.584e-9 CTI/day)
Detrended slope: 1.578e-6 CTI/year (4.311e-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)            
Flickering Warm Pixels   (427,125)     (247,364) (885,460) (607,281) (357,303) (369,376) (669,577) (263,317) (280,313) (233,314) (367,511) (161,206) (258,797) (341,427)   (335,412) (182,474) (197,241) (356,902) (881,53) (838,239) (139,109) (40,49) (636,819)
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, 3 peaks are observed with data missing periods.

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 08/01/14 08/02/14 08/03/14 08/04/14 08/05/14 08/06/14 08/07/14 yellow limits
(lower)
upper
red limits
(lower)
upper
Units Description
TFTERANGE     34.64   34.63     (16.7)
34.5
(11.1)
42.0
K # TFTE VENT/RAD TEMP
5EPHINT 335.75 336.30 336.85 336.85 340.12 337.39 337.39 (261.15)
331.15
(258.15)
341.15
K #EPHIN TEMP
HKP5V       (5.06) (5.06) (5.06) (5.06) (5.08)
5.15
(5.06)
5.17
V #HK 5 Volts Rail - Voltage
HKP5I 53.67       53.28     (35.78)
52.97
(32.78)
55.97
AMP #HK 5 Volts Rail - Current
HKEBOXTEMP 340.27 341.39 341.39 342.56 345.00 342.56 342.56 (268.15)
336.15
(253.15)
346.15
K #EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
TEIO   352.84 352.84 352.84 352.84 352.84 352.84 (252.15)
347.26
(249.37)
361.15
K #EPHIN ELECTRONICS HOUSING TEMP
AACH1T 299.13 298.76 299.13 299.13 299.92 299.50   (283.43)
293.82
(278.43)
302.87
K #AC HOUSING TEMP (ACH1)
AACH2T 299.13 298.76 299.13 299.13 299.92 299.50   (283.43)
295.82
(278.43)
304.87
K #AC HOUSING TEMP (ACH2)
3TSMXCET 265.81   265.81   268.30 268.30   (153.15)
263.15
(148.15)
353.15
K #-X TURTLE SHELL NR HRC CEA
3TSMXSPT 303.22 298.23 303.22 295.74 305.71 305.71   (203.15)
294.15
(148.15)
354.15
K #-X TURTLE SHELL NR ACIS SS
TCYLAFT6         312.25     (259.93)
309.93
(226.59)
348.82
K #CNT CYL TEMP:16-IN FWD OF SC-TS FIT-6
TSAMYT     (304.78)     (304.78)   (307.82)
347.15
(306.04)
365.48
K #-Y WING SOLAR ARRAY TEMP
TSAPYT     (304.78)     (304.78)   (307.82)
347.15
(306.04)
365.48
K #+Y WING SOLAR ARRAY TEMP


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
16353 ACIS-0123 NONE NGC7412 OK OK
16641 ACIS-0123 NONE Chandra Deep Field-South OK OK
16642 ACIS-0123 NONE Sgr C OK OK
15721 ACIS-456789 NONE HD 185269 OK OK
16216 ACIS-7 NONE Sgr A* OK OK
16104 ACIS-23567 NONE J150517.6+194444 OK OK
16631 ACIS-456789 NONE V1180 Cas OK OK
16643 ACIS-0123 NONE Sgr C OK OK
16633 ACIS-01236 NONE Ophiuchus Cluster OK OK
16509 ACIS-7 NONE Eta Carinae OK OK
16260 ACIS-23678 NONE XMMUJ122939.9 +075333 OK OK
16457 ACIS-0123 NONE Chandra Deep Field-South OK OK
16105 ACIS-23567 NONE J224024.1-092748 OK OK

Trending

This week's focus is Sun Angle Correlations.

Last reported on May 29.

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