MTA Monitoring Report 04/26/02 - 05/02/02

Archive of all weekly reports

Archive of monthly reports

Radiation

Quiet

ACIS/Radiation Environment correlations

Detrended CTI

CTI analysis is now computed with "detrending" derived from reject counters for all imaging CCDs

Average of ACIS-I CCDs (MnKa) slope 1.100e-8 CTI/day
Detrended slope 1.034e-8 CTI/day

ACIS Warm Pixels


The following pixels consistently showed a bias level more than 5 sigma away the chip's mean level during this period.
We suspect some of the recurring bad pixels may be due to biases which are taken just after perigee, when the focal plane is somewhat warm. For more information see the link above and MTA monthly reports.



ACIS Focal Plane Temperature

For this period, 3 peaks were observed

SIM Movements

13 TSC moves this period
weekly average time/step 0.00133 s
mission average time/step 0.00137 s

Telemetry

04/26 04/27 04/28 04/29 04/30 05/01 05/02

IRUs


Recent Observations

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

OBSID DETECTOR GRATING TARGET ANALYSIS ACA
3347 ACIS-I NONE LH-NW-8 OK OK
3159 ACIS-S NONE PSS1347+4956 OK OK
3073 ACIS-S NONE HS 1237+4756 OK OK
3292 HRC-I NONE COMA CAL OK
3344 ACIS-I NONE LH-NW-7 OK OK
3138 ACIS-S NONE 3C321 OK Prob
3346 ACIS-I NONE LH-NW-5 OK OK
2583 ACIS-S HETG CAPELLA CAL /Grat OK
2916 ACIS-S NONE IC 342 X-1 OK OK
3345 ACIS-I NONE LH-NW-4 OK Missing
2960 ACIS-S NONE PKS2201+044 OK OK
3122 ACIS-S NONE 1655+077 OK OK
3082 ACIS-S NONE HS 2251+2941 OK OK
3491 ACIS-S HETG SPEEDY MIC OK /Grat OK
2696 ACIS-S NONE 1739-304 CC OK
2744 ACIS-S HETG GX 1+4 CC /Grat OK
2536 ACIS-S HETG SPEEDY MIC OK /Grat Missing
2984 ACIS-S NONE 3C 265 OK OK
3095 ACIS-S NONE FTM1012+2825 OK OK
2721 HRC-I NONE GRS 1758-258 OK OK
3451 HRC-I NONE VELA REMNANT CAL OK

Trending

This Week's focus SIM.

Trends last reported on Feb 14.