MTA Monitoring Report 11/23/01 - 11/29/01

Archive of all weekly reports

Archive of Monthly reports

Radiation

SCS107 ran autonomously at 327:0145 UT, recovery at 329:1823
obsids affected: 3389 (about 34 ks short), 3359,3357,2918,3358,3084,2486, 3364,3019,3018,3151,2403,2944

A Radiation violation of P3 (130Kev) was observed by ACE at 2001:328:0530 UT
Observed = 3.84762e+08
(limit = fluence of 3.6e8 particles/cm2-ster-MeV within 2 hours)

ACIS/Radiation Environment correlations

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.336e-8 CTI/day
Detrended slope 1.259e-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 Temperature

For this period, 1 peak was observed.

SIM Movements

11 TSC moves this period
weekly average time/step 0.00143 s
mission average time/step 0.00137 s

Telemetry

11/23 11/23 - 11/25 11/26 11/27 11/28 11/29

Recent Observations


OBSID DETECTOR GRATING TARGET ANALYSIS ACA
2681 HRC-S LETG V1494 AQL OK /Grat OK
1880 HRC-S LETG UV CETI,GLIESE 65 OK /Grat OK
3172 ACIS-I LETG PKS2155-304 CAL / OK
3170 ACIS-I LETG PKS2155-304 CAL / OK
2814 ACIS-S NONE VELA PWN OK OK
3171 ACIS-I LETG PKS2155-304 CAL / OK
3169 ACIS-I LETG PKS2155-304 CAL / OK
3152 ACIS-S NONE PSS0133+0400 OK OK
3257 ACIS-I NONE MACS-J0329.6-0211 OK Problem
2813 ACIS-S NONE VELA PWN OK OK
3389 ACIS-I NONE HDF-N OK Problem

Trending

This Week's focus SIM.
Temperature in degrees C.
Voltage in volts.
Current in amps.

No significant changes since last reported on Sep 13 .
The most interesting trends are indicated with "*".