MTA Monitoring Report 06/17/15 - 06/25/15

Archive of all weekly reports
Archive of monthly reports


Radiation

Observing stopped by ground activation of SCS-107 at 2015:173:22:40z.

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: 1.611e-6 CTI/year (4.413e-9 CTI/day)
Detrended slope: 1.551e-6 CTI/year (4.431e-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 (153,205) (143,700) (692,141) (910,239) (802,665)   (21,95)       (335,412)    
Flickering Warm Pixels     (726,537)   (419,163) (247,364) (669,577) (357,303) (369,376) (607,281) (263,317) (280,313) (341,427) (161,206) (258,797) (1000,214)   (737,382) (182,474) (197,241) (881,53) (150,374) (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, 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

7 TSC moves this period

Telemetry

New violations or new extrema are shown in blue cells.

MSID 06/19/15 06/20/15 06/21/15 06/22/15 06/23/15 06/24/15 05/25/15 yellow limits
(lower)
upper
red limits
(lower)
upper
Units Description
S2HVLV (83.00) (83.00) (83.00) (82.00) (83.00) (83.00) (83.00) (126.0)
128.0
(125.0)
129.0
(2S2HVLV) #Shield PMT 2 HV monitor
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 297.34 297.34 297.35 297.34 297.31 297.31 297.34 (295.48)
297.15
(279.37)
307.15
K #RT 20 : PERISCOPE
OHRTHR42 294.60 294.56 294.59 294.66 294.67 294.69 294.66 (292.15)
294.37
(279.37)
307.15
K #RT 133: PERISCOPE
OHRTHR43 294.58 294.38 294.53 294.74 294.79 294.79 294.69 (291.59)
293.26
(279.37)
307.15
K #RT 134: PERISCOPE
3TSMXCET 273.29 268.30 263.31 263.31 265.81 270.79   (153.15)
263.15
(148.15)
353.15
K #-X TURTLE SHELL NR HRC CEA
3TSMXSPT 310.70 308.21 300.72 298.23 298.23 308.21   (203.15)
294.15
(148.15)
354.15
K #-X TURTLE SHELL NR ACIS SS


IRUs

Recent Observations

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
17191 ACIS-01237 NONE RXCJ1516.3-2737 OK OK
17123 ACIS-67 NONE NGC 5995 OK OK
16651 ACIS-23678 NONE SDSS J154859.72+341821.7 OK OK
17669 ACIS-01236 NONE RXCJ1504.1-0248 OK OK
17504 ACIS-01236 NONE SPT-CLJ0313-5334 OK OK
16956 ACIS-01237 NONE HESS J1616-508 OK OK
17675 ACIS-5678 NONE [HP99] 456 OK OK
17676 ACIS-01237 NONE HESS J1616-508 OK OK
16459 ACIS-0123 NONE Chandra Deep Field-South OK OK
17678 ACIS-1 NONE M82 OK OK
17060 ACIS-5678 NONE IC 1802 OK OK
17458 ACIS-3567 NONE NGC6587 OK OK
17064 ACIS-5678 NONE UGC 1859 OK OK
17696 ACIS-456789 HETG v404 Cyg CC OK
16575 ACIS-23567 NONE XLSSJ020611.70-061134 OK OK
17235 ACIS-235678 NONE GRB150616A OK OK
17322 ACIS-7 NONE GJ436 OK OK

Trending

This week's focus is Gratings.

Last reported on Apr 02.

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