MTA Monitoring Report 04/09/04 - 04/15/04

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Radiation

ACIS fluence alerts were issued on 04/10/04 and 04/12/04 based on ACE P3 values scaled from FP6p. This was primarily a hard proton event, the P3 channel did not reach alert thresholds. No action necessary.
From Shanil Virani: The total ACE fluence, based on the FP6p scaling was 1.2e9 for this orbit. The ACE fluence based on the new P3p data was 9.5e8 p/(cm^2-sr-MeV).

Detrended CTI

From Feb 2004, we report CTIs with a refined data definition. CTIs were computed for the data taken during the focal plane temperature ≤ -119.7 C, and the integration time longer than 7,000 sec. This eliminates a CTI temperature dependency, and the shows CTI degradation with time much more cleanly. Please see new CTI page for detailed explanation. For the next few weeks, both old and new CTI will be shown for comparison.

New CTI Computation
Average of ACIS-I CCDs (MnKa) slope 6.658e-9 CTI/day
Detrended slope 7.108e-9 CTI/day

Old CTI Computation
Average of ACIS-I CCDs (MnKa) slope 7.986e-9 CTI/day
Detrended slope 8.146e-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

For this period, 2 peaks are observed.

SIM Movements

13 TSC moves this period
weekly average time/step 0.00130 s
mission average time/step 0.00137 s

Telemetry

IRUs


Recent Observations

"Prob" means that there was probably bad time data included in the manual runs. This will probably be corrected in future AP processing.

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
4594 HRC-I NONE WGA J000702+7302.9 OK OK
4675 ACIS-S NONE 1SAX J0618.0+2227 OK OK
5181 ACIS-I NONE alpha CrA OK OK
4814 ACIS-S NONE 1RXSJ113155.4-123155 OK OK
5245 ACIS-S NONE 1RXSJ113155.4-123155 OK OK
4791 ACIS-S NONE F1520-3904 OK OK
5302 ACIS-S NONE NGC 4395 OK OK
5139 ACIS-I NONE E0102-72[I3,-120,-0.5,0.5,0] CAL OK
5136 ACIS-S NONE E0102-72[S5,-120,-17.29,0,0] CAL OK
5135 ACIS-S NONE E0102-72[S4,-120,-9.15,0,0] CAL OK
5301 ACIS-S NONE NGC 4395 OK OK
5134 ACIS-S NONE E0102-72[S2,-120,5.15,0,0] CAL OK
5133 ACIS-S NONE E0102-72[S0,-120,21.44,0,0] CAL OK
5132 ACIS-S NONE E0102-72[S1,-120,13.29,0,0] CAL OK
5130 ACIS-S NONE E0102-72[S3,-120,1,0,0] CAL OK
4817 ACIS-S HETG ESO198-G24 OK /Grat OK

Trending

This Week's focus is Sun Angle Correlations.

Trends last reported on Jan 22.

Only the most interesting or representative msids are shown below. For a full listing choose the bulletted link.