MTA Monitoring Report 07/20/12 - 07/26/12

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: 2.336e-5 CTI/day (1.533e-5 CTI/day)
Detrended slope: 6.881e-5 CTI/day (7.144e-5 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       (811,637)   (233,321) (233,322) (233,323) (233,324) (233,325) (233,326) (258,797) (263,317) (280,313) (352,544) (369,376) (669,577) (884,31) (335,412) (139,109) (833,325) (881,53) (1024,453) (1024,454) (1024,455) (1024,456) (1024,457) (636,819)
Flickering Warm Pixels (153,205) (117,749) (692,141) (667,782) (910,239) (802,665) (427,125) (526,66) (703,739) (247,364) (233,315) (1023,166) (792,313) (367,511) (233,327) (233,328) (282,385) (641,669) (745,313) (843,420) (911,50) (1000,214) (199,678) (1024,458) (197,241) (587,544) (356,902) (913,165) (326,978) (40,49) (569,1016)
Current Hot Pixels                    
Flickering Hot Pixels                    
Warm column candidates                    
Flickering Warm Column Candidates                    

ACIS Focal Plane Temperature

For this period, 4 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

10 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 07/20/12 07/21/12 07/22/12 07/23/12 07/24/12 07/25/12 07/26/12 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
AACH1T (295.07) (294.70) (294.70) (294.33) (294.33) (294.33) (294.33) (314.0)
341.0		(264.0)
373.0 		K #PEA1 AC HOUSING TEMPERATURE IMAGE 0
ELBI 49.47 48.96 49.21         (17.0)
32.0		(3.0)
75.8 		AMP #LOAD BUS CURRENT
OOBTHR56 298.30 296.15 296.15 295.98 297.23 296.42 296.51 (281.9)
295.0		(250.2)
308.0 		K #RT 158: OBA CONE


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
13841 ACIS-56789 HETG Sgr A* OK OK
13803 ACIS-235678 NONE PSR J1753-1914 OK OK
14465 ACIS-56789 HETG Sgr A* OK OK
13728 ACIS-7 NONE Holmberg IX X-1 OK OK
13300 ACIS-012367 NONE M31 OK OK
14047 ACIS-0123 NONE J1458.4-2447 OK OK
13842 ACIS-56789 HETG Sgr A* OK OK
13794 ACIS-23678 NONE GRB 120711A OK OK

Trending

This week's focus is PCAD.

Last reported on May 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