MTA Monitoring Report 02/18/05 - 02/24/05

Archive of all weekly reports

Archive of monthly reports

A new telemetered photon dose map trend

To monitor accumulative exposure effects on ACIS, we created cumulative exposure map once a month from all observations, including calibrations, using evt1 data of that month. This map is added on all previous exposure maps, and then statistics of the total exposure map is computed.

You can find this at Telemetered Photon Dose Map

A Step by Step Example of Correcting Temperature Dependence of CTI

To show how we correct temperature dependence of CTI, we added a step by step example of the correction. Please see: CTI correction page


Radiation

Quiet.

Detrended CTI

CTI page was updated. The top panel shows an example of detrended CTI measurements from the front illuminated CCD3 Node 0. The top plot is all data points without any temperature dependency correction. The middle plot is data with the focal temperature equal or colder than -119.7 C, and the integration time longer than 7,000 sec. The bottom plot is all data with the temperature correction.

The values quoted below are temperature factor corrected ones.
Average of ACIS-I CCDs (MnKa) slope 4.993e-9 CTI/day
Detrended slope 6.377e-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

17 TSC moves this period
weekly average time/step 0.00130 s
mission average time/step 0.00135 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
6174 ACIS-S HETG M81* OK /Not yet avail. OK
5604 ACIS-S NONE SDSSJ0924+0219 OK OK
5519 ACIS-S NONE PSRB1133+16 OK OK
6229 ACIS-I NONE CygnusA OK OK
5830 ACIS-I NONE CygnusA OK OK
6249 ACIS-S NONE B1152+199 OK Missing
5838 ACIS-I NONE cl0926+1242 OK OK
6250 ACIS-I NONE CygnusA OK OK
5765 ACIS-I NONE cl0853+5759 OK OK
5779 ACIS-I NONE cl0958+4702 OK OK
6226 ACIS-I NONE CygnusA OK OK
5524 ACIS-S NONE RXJ1308.8+2127 OK OK
5833 ACIS-S NONE RXCJ1213.3-2617 OK OK
5662 ACIS-S NONE SDSSJ101627.32-000714.5 OK OK
5630 ACIS-S NONE 2MASS194915-551012 OK OK
6154 ACIS-S NONE PSRJ0437-4715 OK OK
5540 ACIS-I NONE RXJ0806.4-4123 OK OK
5928 HRC-I NONE M31* OK OK
5968 HRC-S NONE VEGA OK OK
5969 HRC-S NONE VEGA OK OK
5967 HRC-S NONE VEGA OK OK
5966 HRC-S NONE VEGA OK OK
5965 HRC-I NONE VEGA OK OK
5958 HRC-I LETG HZ43 OK /OK OK
4850 HRC-I NONE 1ES1239+069 OK OK

Trending

This Week's focus is SPACECRAFT TEMPERATURES/ELECTRONICS.

Trends last reported on December 02.

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