MTA Monitoring Report 09/28/01 - 10/04/01

Archive of all weekly reports

Archive of Monthly reports

Radiation

Continued from last week:


This week:

ACIS/Radiation Environment correlations

CTI Trend

Average of ACIS-I CCDs (MnKa) slope 1.365e-8 CTI/day
Detrended slope 1.324e-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.
For more information see the link above and MTA monthly reports.

ACIS Focal Temperature

For this period, 4 peaks were observed.

MTA Problem Tracking

Note: Problem Tracking system is currently not working properly. Many problems reported are not listed on the table.

SIM Movements

4 TSC moves this period
weekly average time/step 0.00131 s
mission average time/step 0.00136 s

Telemetry

9/28 - 9/29 9/30 10/01 10/02 10/03 10/04

Recent Observations

The ACA Problem is in the specified handling of guide star positional errors.
This issue in not significant to the final product and so is being worked at low priority.
OBSID DETECTOR GRATING TARGET ANALYSIS ACA
3402 HRC-S LETG CAL 83 OK /Not yet aval. OK
1981 ACIS-S NONE SGR 1627-41 OK OK
2037 ACIS-S NONE IRAS 23128-5919 OK OK
1950 ACIS-S NONE PUPPIS A SHOCK FRONT OK Problem

Trending

This Week's focus S/C Sub Systems
Temperatures in degrees K. Current in Amps. Voltage in Volts.

Most msids are keeping the same trends from the previous reporting period ( 07/13/01 - 07/19/01 weekly).
Interesting trends are indicated with "*".