MTA Monitoring Report 02/21/14 - 02/27/14

Archive of all weekly reports
Archive of monthly reports

Radiation

The largest flare of the year and one of the largest of the solar cycle
occurred on 2/25 from sunspot 1990, on its third transit across the sun.
Earth received a glancing blow on 2/27 and a GOES alert was issued:
A Radiation violation of GOES 13 P2 (4-9 MeV) has occurred indicating a possible EPHIN P4GM value of 1/3 the threshold.
Value: 34.60 p/cm2-s-sr-MeV
Limit: 30.00

No action required.

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: 5.173e-9 CTI/day (1.855e-9 CTI/day)
Detrended slope: 9.651e-9 CTI/day (6.090e-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) (692,141) (802,665) (910,239) (526,66) (21,95)   (233,315) (233,321) (233,322) (233,323) (233,324) (233,325) (233,326) (233,327) (233,330) (258,797) (263,317) (352,544) (367,511) (369,376) (641,669) (669,577)   (335,412) (139,109) (182,474) (197,241) (356,902) (587,544) (833,325) (838,239) (881,53) (913,165) (1024,454) (1024,455) (1024,456) (1024,457)  
Flickering Warm Pixels (143,700) (667,782)   (21,95) (703,739) (931,553) (811,637) (703,739) (931,553) (811,637)   (233,329) (166,738) (282,385) (884,31) (843,420) (1000,214) (1000,214) (884,31) (335,412) (843,420)     (636,819)
Current Hot Pixels                    
Flickering Hot Pixels                    
Warm column candidates                    
Flickering Warm Column Candidates   509 514 1021                

ACIS Focal Plane Temperature

For this period, 3 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 5 kkm to 145 kkm.



SIM Movements

7 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 02/21/14 02/22/14 02/23/14 02/24/14 02/25/14 02/26/14 02/27/14 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
5EPHINT 336.85 336.85 335.75 335.75 335.21 334.66 336.85 (272.0)
313.7		(270.0)
351.5		 K EPHIN TEMP
HKEBOXTEMP 342.56 341.39 341.39 341.39 340.27 340.27 342.56 (268.0)
320.0		(253.0)
348.0		 K EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
RSRFALV   191.00 190.00 190.00 190.00 190.00 190.00 (172.0)
190.0		(171.0)
191.0		 V Range switch setting (2RSRFALV)
OHRTHR43 294.38 294.42 294.59 294.62 294.53 294.61 294.69 (292.4)
294.1		(280.2)
308.0		 K RT 134: PERISCOPE
TASPPCM     299.00 300.03       (260.8)
294.1		(216.3)
349.7		 K AFT SHEAR PANEL TEMP:-Z PCAD COMP
TCYLAFT1     311.56 312.25     312.25 (260.8)
298.0		(227.4)
353.0		 K CNT CYL TEMP:16-IN FWD OF SC-TS FIT-1
TCYLAFT6 310.86 310.86 313.64 313.64 310.16 310.16 312.95 (260.8)
298.0		(227.4)
353.0		 K CNT CYL TEMP:16-IN FWD OF SC-TS FIT-6
TCYLPCM       300.55       (260.8)
294.1		(227.4)
349.7		 K CNT CYL TEMP:-Z PCAD COMP
TFSSBKT1     365.00 365.00 365.00 365.00 365.00 (237.4)
342.0		(223.0)
354.0		 K FSS BRACKET-1 TEMP (+Y)
TFSSBKT2 365.00 365.00 365.00 365.00 365.00 365.00 365.00 (237.4)
342.0		(223.0)
354.0		 K FSS BRACKET-2 TEMP (+Y)
TSCIUSF8       363.84       (230.2)
362.0		(227.4)
364.0		 K SC-IUS FITTING-8 TEMP
TSCTSF1       308.07       (260.8)
294.1		(253.0)
303.0		 K SC-TS FITTING -1 TEMP
TSCTSF6       309.47     308.77 (255.8)
300.2		(253.0)
303.0		 K SC-TS FITTING -6 TEMP


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
16586 ACIS-0123 NONE Virgo cold front OK OK
15979 ACIS-23567 NONE PSR J1807-0847 OK OK
15980 ACIS-23567 NONE PSR J1813+1822 OK OK
16508 ACIS-7 NONE Sgr A OK OK
16587 ACIS-0123 NONE Virgo cold front OK OK
15738 HRC-S LETG V745 Sco OK OK
15737 ACIS-456789 HETG V745 Sco OK OK
15699 ACIS-7 NONE Pluto OK OK
15179 ACIS-0123 NONE Virgo cold front OK OK
15988 ACIS-7 NONE Swift J1822.3-1606 OK OK
15075 ACIS-456789 HETG Markarian 1040 OK OK
16584 ACIS-456789 HETG Markarian 1040 OK OK
14819 ACIS-7 NONE Swift J1822.3-1606 OK OK
15797 ACIS-012367 NONE IGR J17174-2436 OK OK
16590 ACIS-0123 NONE Virgo cold front OK OK
15359 ACIS-01237 NONE HESS J1848-018 OK OK

Trending

This week's focus is Ground Computed Gradients.

Last reported on Dec 12.

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