MTA Monitoring Report 02/19/10 - 02/25/10

Archive of all weekly reports
Archive of monthly reports

Radiation

Quiet.

Detrended CTI

Although we have quoted CTI values of the cleanest data (FT <= -119.7 C, int time > 7000sec), the data fills these conditions are getting rare. We quote CTI temperature factor corrected ones. The values in the parentheses are CTI based on the cleanest data.

Average of ACIS-I CCDs (MnKa) slope: 1.336e-9 CTI/day (1.290e-9 CTI/day)
Detrended slope: 7.498e-9 CTI/day (7.274e-9 CTI/day)

ACIS Warm Pixels

We display all bad pixels 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 a computational artificial effect due to boundaries.

 CCD0CCD1CCD2CCD3CCD4CCD5CCD6CCD7CCD8CCD9
Previously Unknown Bad Pixels                    
Current Warm Pixels (153,205) (153,19) (802,665) (910,239) (526,66)   (247,364) (283,224) (233,315) (233,321) (233,322) (233,323) (233,324) (233,327) (258,797) (263,317) (352,544) (369,376) (669,577) (843,420)   (197,241) (356,902) (587,544) (881,53) (913,165) (1024,453) (1024,454) (1024,455) (1024,456) (1024,457) (1024,431) (1024,432) (1024,433) (40,49) (636,819)
Flickering Warm Pixels     (526,66) (206,757) (931,553) (703,739) (247,364) (283,224) (227,467) (233,321) (233,322) (233,323) (233,324) (233,325) (233,326) (233,327) (233,328) (263,317) (280,313) (369,376) (352,544) (258,797) (367,511) (669,577) (233,315) (745,313) (1023,166) (884,31) (335,412) (662,995) (199,678) (881,53) (913,165) (829,997) (197,241) (562,499) (587,544) (833,325) (1024,431) (1024,432) (1024,433) (1024,453) (1024,454) (1024,455) (1024,456) (1024,457) (356,902) (182,474) (40,49) (636,819)
Current Hot Pixels                    
Flickering Hot Pixels                    
Warm column candidates                    
Flickering Warm Column Candidates 509 518         509 509 509 509 514 1021 509

ACIS Focal Plane Temperature

For this period, 3 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

6 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 02/19/10 02/20/10 02/21/10 02/22/10 02/23/10 02/24/10 02/25/10 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
5EPHINT 322.10 315.58 321.63 320.69 320.27 318.14 318.56 (261.0)
300.0		(258.0)
303.0		 K EPHIN
HKEBOXTEMP 326.61   325.85 325.85 324.39 322.29 322.97 (268.0)
308.0		(253.0)
343.0		 K EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
HKFBIASLEAKI 4.88 2.76 4.63 4.48 4.29 3.52 3.73 (-100.0)
2.0		(-200.0)
3.0		 uA EPHIN HOUSEKEEPING F-BIAS: LEAKAGE CURRENT (5EHSE900)
TEIO 340.27   340.27 341.84 340.27 335.56 338.70 (253.0)
320.2		(250.2)
323.0		 K EPHIN ELECTRONICS HOUSING TEMP
TEPHIN 322.36 314.47 322.36 322.36 319.42 316.94 317.77 (260.8)
300.2		(258.0)
303.0		 K EPHIN SENSOR HOUSING
3RCTUBPT       298.48 298.99 295.46 297.98 (234.1)
276.3		(231.6)
278.8		 K RCTU BASEPLATE
TFSSBKT1 348.63   348.63 351.03 353.42 348.63 351.03 (233.0)
345.2		(223.0)
348.0		 K FSS BRACKET-1 TEMP
TFSSBKT2 351.03   348.63 353.42 353.42 351.03 351.03 (233.0)
345.2		(223.0)
348.0		 K FSS BRACKET-2 TEMP
4RT584T 290.77 290.27   290.01 290.52 290.52 290.01 (281.9)
290.0		(250.2)
308.0		 K RT 584 - STRUT TEMP
4RT591T 292.82       293.08 293.08   (281.9)
292.0		(250.2)
308.0		 K RT 591 - STRUT TEMP
OOBTHR04 290.51 290.12     290.29 290.29   (281.9)
290.0		(250.2)
308.0		 K RT 27: HRMA STRUT
OOBTHR05 290.67 290.32   290.19 290.71 290.71 290.19 (281.9)
290.0		(250.2)
308.0		 K RT 28: HRMA STRUT
OOBTHR45 292.16             (281.9)
292.0		(250.2)
308.0		 K RT 67: TFTE COVER
OOBTHR52 292.19       292.54 292.49   (281.9)
292.0		(250.2)
308.0		 K RT 78: S/C STRUT
OOBTHR56 295.89   295.71 295.62       (281.9)
295.0		(250.2)
308.0		 K RT 158: OBA CONE


Pitch Angle and System Temperature

This is a test implementation, not all #'s have been verified.
On the weekly plots, long green ticks indicate obsid starts. The shorter orange ticks indicate rad zone events.

The following table shows the maximum temperature (in K) appeared during the observations. All data are taken between Feb 15 and Feb 21, 2010- DOY 046-052.

IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
10960 ACIS-01236 NONE Cygnus OB2 OK OK
12078 ACIS-23678 NONE Q0957+561 OK OK
11463 ACIS-7 NONE SDSS J121518.23+014751.1 OK OK
12106 ACIS-23678 NONE 4c+29.30 OK OK
12107 ACIS-235678 NONE TOOT 1630+4534 OK OK
11331 ACIS-456789 NONE PGC042724 OK OK
11688 ACIS-23678 NONE 4c+29.30 OK OK
11462 ACIS-7 NONE SDSS J115341.77+461242.2 OK OK
11571 ACIS-235678 NONE TOOT 1630+4534 OK OK
11685 ACIS-235678 NONE VCS2 J0109+6133 OK OK
11866 ACIS-23567 NONE cl0422−5009 OK OK
10961 ACIS-012367 NONE Cygnus OB2 OK OK
10962 ACIS-012367 NONE Cygnus OB2 OK OK
10963 ACIS-012367 NONE Cygnus OB2 OK OK
10964 ACIS-01236 NONE Cygnus OB2 OK OK
10965 ACIS-012367 NONE Cygnus OB2 OK OK

Trending

This week's focus is ACIS.

Last reported on Dec 03.

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