MTA Monitoring Report 08/08/08 - 08/14/08

Archive of all weekly reports

Archive of monthly reports

Chandra entered Normal Sun Mode on 225:09:26:00 likely due to a Single Event Upset in the Command and Telemetry Unit
NSM return to science at 2008:228:13:10:00
Lost science time: 161.4 ks
After recovery a detailed investigation is underway.

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. From this week, 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: 1.474e-9 CTI/day (2.054e-9 CTI/day)
Detrended slope: 7.053e-9 CTI/day(7.375e-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.


ACIS Focal Plane Temperature

SIM Movements

9 TSC moves this period
weekly average time/step 0.00131 s
mission average time/step 0.00134 s

Telemetry

New violations or new extrema are shown in blue cells.
MSID 08/08/08 08/09/08 08/10/08 08/11/08 08/12/08 08/13/08 08/14/08 yellow limits
(lower)
upper 		red limits
(lower)
upper 		Units Description
1CBAT     (203.40) (203.40) (200.95) (200.95) (200.95) (210.0)
301.0		(205.0)
306.06 		A CAMERA BODY TEMP.
1CBBT     (203.40) (205.86) (200.95) (200.95) (200.95) (210.0)
301.0		(205.0)
306.06 		B CAMERA BODY TEMP.
1CRAT           (142.83) (142.83) (143.0)
323.0		(138.0)
373.06 		A COLD RADIATOR TEMP.
1OAHBT           (233.08) (233.08) (233.5)
289.5		(228.5)
294.5 		B OPEN ACTUATOR HOUSING TEMP.
1WRAT         (183.83) (183.83) (183.83) (185.0)
323.0		(180.0)
360.06 		A WARM RADIATOR TEMP.
1WRBT         (183.83) (183.83) (183.83) (185.0)
323.0		(180.0)
360.06 		B WARM RADIATOR TEMP.
5EPHINT     318.99 319.42 321.63 325.38 325.84 (261.0)
300.0		(258.0)
303.0 		TEMP EPHIN
HKEBOXTEMP     323.67 323.67 326.61 330.62 330.62 (268.0)
308.0		(253.0)
343.0 		K EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300)
HKFBIASLEAKI     3.75 3.85 4.61 4.88 4.88 (-100.0)
2.0		(-200.0)
3.0 		uA EPHIN HOUSEKEEPING F-BIAS: LEAKAGE CURRENT (5EHSE900)
TEIO     337.13   337.13 340.27 340.27 (253.0)
320.2		(250.2)
323.0 		K EPHIN ELECTRONICS HOUSING TEMP
TEPHIN     319.42 319.42 322.36 325.54 326.60 (260.8)
300.2		(258.0)
303.0 		TEMP EPHIN SENSOR HOUSING
AACCCDRT           297.28 297.65 (287.28)
289.58		(287.13)
289.73 		K AC CCD TEMP (RDNT)
AACH1T           (294.33) (294.70) (314.0)
341.0		(264.0)
373.0 		K PEA1 AC HOUSING TEMPERATURE IMAGE 0
AACH2T           294.33 295.07 (278.0)
293.0		(250.2)
310.8 		K AC HOUSING TEMP (ACH2)
AAOTASMT           293.59 293.96 (286.25)
287.91		(286.15)
288.06 		K AC OPT TEL ASSY SECONDARY MIRROR TEMP
AAOTH2MT         287.76     (286.50)
287.53		(286.40)
287.63 		K AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)
AAOTH2MT           293.96 294.33 (286.50)
287.53		(286.40)
287.63 		K AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA)
TFSSBKT1     346.67   346.67 348.63 348.63 (233.0)
345.2		(223.0)
348.0 		(+Y) FSS BRACKET-1 TEMP
TFSSBKT2     348.63   346.67 348.63 348.63 (233.0)
345.2		(223.0)
348.0 		(-Y) FSS BRACKET-2 TEMP
4RT577T           292.83 293.14 (281.9)
292.0		(250.2)
308.0 		K RT 577 - OB CONE TEMP
4RT584T           290.52 291.28 (281.9)
290.0		(250.2)
308.0 		K RT 584 - STRUT TEMP
4RT591T             293.08 (281.9)
292.0		(250.2)
308.0 		K RT 591 - STRUT TEMP
4RT710T           289.13 289.44 (281.9)
288.6		(250.2)
308.0 		K RT 710 - OB BULKHEAD TEMP
4RT711T           289.13 289.74 (281.9)
288.6		(250.2)
308.0 		K RT 711 - OB BULKHEAD TEMP
OOBTHR04           290.46 291.20 (281.9)
290.0		(250.2)
308.0 		K RT 27: HRMA STRUT
OOBTHR05           290.80 291.54 (281.9)
290.0		(250.2)
308.0 		K RT 28: HRMA STRUT
OOBTHR26         (256.81)     (260.2)
303.0		(250.2)
308.0 		CONE RT 48: OBA
OOBTHR45           292.99 293.47 (281.9)
292.0		(250.2)
308.0 		K RT 67: TFTE COVER
OOBTHR52             292.54 (281.9)
292.0		(250.2)
308.0 		K RT 78: S/C STRUT
OOBTHR56           296.33 296.78 (281.9)
295.0		(250.2)
308.0 		K RT 158: OBA CONE
OOBTHR60         (198.92)     (260.2)
303.0		(250.2)
308.0 		CONE RT 153: OBA

IRUs


Recent Observations


OBSID DETECTOR GRATING TARGET ANALYSIS ACA
8581 ACIS-7 NONE M87 OK OK
9132 ACIS-23678 NONE NGC 6626 OK OK
9481 ACIS-012367 NONE Carina Clusters Ptg 1 OK OK
9133 ACIS-23678 NONE NGC 6626 OK OK
9410 ACIS-01236 NONE RXCJ0105.5-2439 OK OK
9372 ACIS-01236 NONE Abell 2537 OK OK

Trending

This week's focus is SIM.

Last reported on May 15.

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.