ACIS
ACIS DOSE Registered-Photon-Map
The steps we took to compute the dose map are;
- Level 1 Event files for a specified month are obtained from archive.
- Image data including I2, I3, S2, S3 CCDs are extracted from all event files.
- All the extracted image data were merged to create a month long exposure map for the month.
- The exposure map is opened with ds9, and check a distribution of count rates against energy. From this, estimate the upper threshold value. Any events beyond this upper threshold are assumed erroneous events such as bad pixels.
- Using this upper threshold, the data is filtered, and create a cleaned exposure map for the month.
- The exposure map from each month from the Sep 1999 is added up to create a cumulative exposure map for each month.
- Using fimgstatistic, we compute count rate statistics for each CCDs.
- For observations with high data drop rates (e.g., Crab nebula, Cas A), we corrected the observations by adding events.
Please check more detail plots at Telemetered Photon Dose Trend page.
Statistics: # IMAGE NPIX MEAN RMS MIN MAX ACIS_nov14 6004901 7.334 13.651 0.0 4936 I2 node 0 262654 7.838173 3.422585 0.0 40.0 I2 node 1 262654 8.157084 7.286667 0.0 3162.0 I2 node 2 262654 7.917984 3.386410 0.0 69.0 I2 node 3 262654 7.987921 12.731027 0.0 3168.0 I3 node 0 262654 9.787671 4.178950 0.0 271.0 I3 node 1 262654 10.018648 13.375961 0.0 4936.0 I3 node 2 262654 9.154207 3.687668 0.0 74.0 I3 node 3 262654 9.352709 10.617905 0.0 4742.0 S2 node 0 262654 7.398974 6.309869 0.0 2001.0 S2 node 1 262654 7.458695 3.442224 0.0 50.0 S2 node 2 262654 7.563308 3.412700 0.0 286.0 S2 node 3 262654 7.495942 3.215145 0.0 367.0 S3 node 0 262654 21.173820 36.496277 0.0 296.0 S3 node 1 262654 13.226906 14.962594 0.0 234.0 S3 node 2 262654 9.936895 3.390196 0.0 42.0 S3 node 3 262654 9.037095 3.208054 0.0 30.0
Statistics: IMAGE NPIX MEAN RMS MIN MAX ACIS_total 6004901 1842.513 2419.260 0.0 106804 I2 node 0 262654 1544.833839 295.524969 286.0 9057.0 I2 node 1 262654 1628.867541 408.111980 321.0 37164.0 I2 node 2 262654 1659.067239 347.039197 324.0 9179.0 I2 node 3 262654 1656.897396 417.333505 305.0 27992.0 I3 node 0 262654 1740.374321 414.357064 305.0 6837.0 I3 node 1 262654 1827.248223 1383.88558 1 310.0 35044.0 I3 node 2 262654 1596.601847 286.276987 296.0 8116.0 I3 node 3 262654 1582.050693 306.637684 277.0 26968.0 S2 node 0 262654 2156.785126 313.887298 1134.0 21184.0 S2 node 1 262654 2295.668565 502.178271 1197.0 12679.0 S2 node 2 262654 2530.263385 480.859291 1516.0 19072.0 S2 node 3 262654 2452.816272 341.752070 1418.0 41558.0 S3 node 0 262654 3836.442237 1792.503110 1562.0 13526.0 S3 node 1 262654 5008.784388 2076.813679 0.0 14008.0 S3 node 2 262654 3816.998361 985.538953 1558.0 9302.0 S3 node 3 262654 2957.381334 450.997970 1689.0 10300.0
Aug 2014 | May 2014 | Feb 2014 | Nov 0213 |
---|
The Mean Detrended CTI
We report CTIs with a refined data definition. CTIs were computed for the temperature dependency corrected data. Please see CTI page for detailed explanation. CTI's are computed for Mn K alpha, and defined as slope/intercept x10^4 of row # vs ADU. Data file: here
Imaging CCDs
Spectral CCDs
Backside CCDs
Focal Plane Temperature
Nov 2014 Focal Temperature
The Mean (max) FPT: | |
---|---|
-111.09 | +/- 6.25 C |
Mean Width: | |
1.55 | +/- 1.49 days |
Averaged Focal Plane Temperature
We are using 10 period moving averages to show trends of peak temperatures and peak widths. Note, the gaps in the width plot are due to missing/corrupted data.
Focal Plane Temperature, Sun Angle and Altitude
Bad Pixels
The plots below were generated with a new warm pixel finding script. Please see Acis Bad Pixel Page for details.
Front Side CCDs
Back Side CCD (CCD5)
Science Instrument Background Rates
Name | Low (keV) | High(KeV) | Description |
---|---|---|---|
SSoft | 0.00 | 0.50 | Super soft photons |
Soft | 0.50 | 1.00 | Soft photons |
Med | 1.00 | 3.00 | Moderate energy photons |
Hard | 3.00 | 5.00 | Hard Photons |
Harder | 5.00 | 10.00 | Very Hard photons |
Hardest | 10.00 | Beyond 10 keV |
The following three plots show trends of SIB from year 2000. CCDs shown here are CCD3, CCD5, and CCD7. Fitted lines are linear fit after eliminating extreme outliers. For >10 keV plots, 2 lines are fit. One is with a 13 keV filter, and another without.
CCD 3
CCD 5
CCD 7
ACIS Histogram Mode Trends
We collected data from acis histogram mode data, and created trend plots of peak portions and peak widths against time (DOM). The peaks were estimated by fitting a simple Gaussian on three peaks (Al, Ti, and Mn), and the widths were estimated by a width at the half max from the peak.
All histogram data are taken under TIMED and GRADED_HIST mode, SIM position is at an external calibration source position, the focal temperature is around -119.7 C, and parameter settings in aciselec, acistemp are set to about same for all.
CCD 3, Peak Position
CCD 3, Peak Widths
CCD 3, Count Rates
HRC
DOSE of Central 4K Pore-Pairs
Please refer to Maximum Dose Trends for more details.
IMAGE NPIX MEAN STDDEV MIN MAX HRCI_11_2014.fits 16777216 0.007 0.0860 0.0 2.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCI_08_1999_11_2014.fits 16777216 4.300 4.889 0.0 292.0
No Data
IMAGE NPIX MEAN STDDEV MIN MAX HRCS_08_1999_11_2014.fits 16777216 15.525 27.207 0.0 1681.0
Max dose trend plots corrected for events that "pile-up"
in the center of the taps due to bad position information.
|
Aug 2014 | May 2014 | Feb 2014 | Nov 2013 |
---|
Aug 2014 | May 2014 | Feb 2014 | Nov 2013 |
---|
Gratings
Focus
We plot the width of the zero order streak of ACIS/HETG observations and the width of the zero order image for HRC/LETG observations of point sources. No significant defocusing trend is seen at this time. See Gratings Focus pages.
PCAD
ACA Trending
Gyro Bias Drift
Radiation History
Radiation Zone Timing
Sun Spot History
Trending
Quarterly Trends
- SIM Temperature
Previous Quarter | ||||||
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
3FLCABPT | 284.22 | 4.26 | 1.418e+01 | 2.681e-12 | K | FLCA BASEPLATE (+X) |
3TSMXCET | 236.75 | 31.36 | 1.046e+02 | -2.887e-12 | K | -X TURTLE SHELL NR HRC CEA |
3TSMXSPT | 277.92 | 29.00 | 9.698e+01 | -2.590e-11 | K | -X TURTLE SHELL NR ACIS SS |
3TSPZSPT | 275.89 | 8.35 | 2.487e+01 | 1.040e-11 | K | +Z TURTLE SHELL NR ACIS SS |
BOXTEMP | 282.18 | 1.34 | -3.658e+00 | -1.885e-13 | K | SEA box temperature (3FASEAAT) |
PSUTEMP | 311.27 | 1.13 | -5.101e+00 | 4.182e-13 | K | SEA power supply temperature (3FAPSAT) |
- SIM Electronics
Previous Quarter | ||||||
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
AGRNDADC | 2.712e-04 | 2.006e-04 | 4.531e-04 | 1.446e-02 | V | Analog ground A/D convert reading |
FATABADC | 5.00 | 2.422e-03 | 7.297e-03 | 2.416e-01 | Converter | FA Tab Position Sensor A/D |
N15VADC | -15.01 | 4.645e-04 | 8.000e-04 | 4.374e-02 | Reading | -15V Power Supply A/D Converter |
P15VADC | 14.96 | 5.372e-04 | 2.345e-03 | 6.420e-02 | Reading | +15V Power Supply A/D Converter |
P5VADC | 5.00 | 2.425e-02 | 7.025e-02 | 2.519e+00 | Reading | +5V Power Supply A/D Converter |
TSCTABADC | 5.00 | 4.362e-03 | 9.688e-03 | 3.331e-01 | converter | TSC Tab Position Sensor A/D |
Envelope Trending
OBA Grad
OBA Heaters
Spacecraft Motions
TSC and FA Cummulative Moter Distance
HETG and LETG Cummulative Insertion Counts
HETG/LETG Insertion/Retraction Angle
Reaction Wheel Rotations
Links to Past Monthly Reports
Year | Month | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
1999 | Jul | Aug | Sep | Oct | Nov | Dec | ||||||
2000 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2001 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2002 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2003 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2004 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2005 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2006 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2007 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2008 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2009 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2010 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2011 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2012 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2013 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
2014 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct |