The steps we took to compute the dose map are;
Please check more detail plots at Telemetered Photon Dose Trend page.
Statistics: # IMAGE NPIX MEAN RMS MIN MAX ACIS_nov08 6004901 9.129 12.66 0.0 826.0 I2 node 0 262654 7.533611 3.203536 0.0 32.0 I2 node 1 262654 8.030657 3.521326 0.0 176.0 I2 node 2 262654 7.962688 3.269163 0.0 37.0 I2 node 3 262654 7.907738 3.454434 0.0 44.0 I3 node 0 262654 7.663861 3.201097 0.0 37.0 I3 node 1 262654 8.153996 7.598823 0.0 182.0 I3 node 2 262654 7.459794 3.088459 0.0 55.0 I3 node 3 262654 7.426491 3.130643 0.0 113.0 I2 node 0 262654 13.714805 4.904197 0.0 169.0 I2 node 1 262654 13.910399 5.635959 0.0 98.0 I2 node 2 262654 14.527191 5.379210 0.0 114.0 I2 node 3 262654 13.733786 5.053378 0.0 826.0 I3 node 0 262654 18.018375 11.582354 1.0 334.0 I3 node 1 262654 18.547942 6.661727 0.0 104.0 I3 node 2 262654 18.347595 6.205826 0.0 55.0 I3 node 3 262654 17.164212 6.021551 0.0 85.0
Statistics: IMAGE NPIX MEAN RMS MIN MAX ACIS_total 6004901 1202.65 1645.70 0.0 73242.0 I2 node 0 262654 929.059097 166.867604 0.0 4193.0 I2 node 1 262654 982.629960 228.039823 0.0 15650.0 I2 node 2 262654 997.247360 192.397576 0.0 8371.0 I2 node 3 262654 998.758588 244.650123 0.0 27238.0 I3 node 0 262654 1050.962356 254.396910 0.0 5554.0 I3 node 1 262654 1090.911659 785.268128 0.0 20797.0 I3 node 2 262654 970.165171 165.487077 0.0 4166.0 I3 node 3 262654 958.427925 177.781943 0.0 17780.0 I2 node 0 262654 1435.878454 187.391333 707.0 19783.0 I2 node 1 262654 1522.566402 311.689135 735.0 7924.0 I2 node 2 262654 1698.732280 317.927392 957.0 11228.0 I2 node 3 262654 1642.005695 239.141397 937.0 21685.0 I3 node 0 262654 2534.006039 1280.150949 1025.0 10931.0 I3 node 1 262654 3746.325821 1786.510391 0.0 11842.0 I3 node 2 262654 2746.148641 811.364748 910.0 6194.0 I3 node 3 262654 2063.759882 332.889709 1082.0 8178.0
Aug 2008 | May 2008 | Feb 2008 | Nov 2007 |
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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
The Mean (max) FPT: -116.53 C std dev: 2.38 mean width: 0.32 days std dev: 0.22
The following is a plot of focal plane temperature and sun angle, earth angle, and altitude.
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)
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.
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.
IMAGE NPIX MEAN STDDEV MIN MAX HRCI_11_2008.fits 16777216 0.033 0.184 0.0 5.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCI_09_1999_11_2008.fits 16777216 2.694 3.607 0.0 290.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCS_11_2008.fits 16777216 0.296 0.174 0.0 4.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCS_09_1999_11_2008.fits 16777216 9.360 17.587 0.0 1553.0
We display a max dose trend plot corrected for events that "pile-up" in the center of the taps due to bad position information.
Aug 2008 | May 2008 | Feb 2008 | Nov 2007 |
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Aug 2008 | May 2008 | Feb 2008 | Nov 2007 |
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Plot symbol indicates dispersion arm: | Color indicates observation date: |
Minus side = cross (x) |
2002-2004   blue 2005-2006   yellow 2007-2008   orange |
SIM Shift and Twist Trend The following plots show trends of SIM shifts (dy and dz) and twist (dtheta). All quantities are directly taken from pcaf*_asol1.fits files. The units are mm for dy and dz, and degree for dtheta. We fit three lines separated before and after (Days of Mission)= 1400 (May 21, 2003), and 2700 (Jan 11, 2006). The unit of slopes are mm per day or degree per day.
The sudden shift around DOM = 1400 and 2700 are due to fid light drift (see a memo by Aldcroft
fiducial light drift). On the dtheta plot, two tracks
are clearly observed. The track around 0.01 is due to HRC-I, and all others are clustered around -0.002.
For more detail, please see
SIM Shift and Twist Trend page
ACIS Electronics A | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
1DE28AVO | 28.61 | 0.25 | -2.531e+00 | -1.226e+01 | V | DEA +28V INPUT A |
1DP28AVO | 28.63 | 0.24 | -2.512e+00 | -1.165e+01 | V | DPA +28V INPUT A |
OBA Cone Gradient | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
HCONEGRD39 | 2.22 | 3.168e-02 | -2.992e-01 | 1.782e+00 | K | RT50-RT51: OBA Cone Panel |
HRC Temperature | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
2CEAHVPT | 299.76 | 2.55 | -1.821e+01 | -3.995e+02 | K | CEA RADIATOR TEMPERATURE AT CENTER |
2CHTRPZT | 295.98 | 2.42 | -1.699e+01 | -3.738e+02 | K | CENTRAL ELECTRONICS BOX TEMP |
2DTSTATT | 292.64 | 2.25 | -1.399e+01 | -3.707e+02 | K | DETECTOR HOUSING TEMP 1 |
2FHTRMZT | 294.33 | 2.18 | -1.150e+01 | -3.170e+02 | K | FRONT END ELECTRONICS BOX TEMPERATURE |
2UVLSPXT | 289.13 | 3.07 | -2.042e+01 | -4.199e+02 | K | UV LIGHT SHIELD NEXT TO SNOUT TEMP |
PCAD Temperature | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
AACCCDPT | 253.52 | 0.17 | 2.198e-01 | -9.659e-01 | K | AC CCD TEMP (PRI) |
AAOTASMT | 291.39 | 0.49 | -3.015e-01 | -1.106e+01 | K | AC OPT TEL ASSY SECONDARY MIRROR TEMP |
AAOTH2MT | 291.80 | 0.55 | -1.010e-01 | -1.373e+01 | K | AC OPT TEL ASSY SECONDARY MIRROR TEMP (HRMA) |
SIM Temperature | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
BOXTEMP | 290.53 | 2.30 | -1.247e+01 | -1.407e-12 | K | SEA box temperature |
FAMTRTEMP | 281.89 | 3.33 | -1.755e+01 | 2.541e-12 | K | FA motor temperature |
FLEXATEMP | 278.08 | 3.01 | -1.430e+01 | 7.994e-13 | K | Flexure A temperature (3FAFLAAT) |
PSUTEMP | 318.87 | 1.95 | -1.241e+01 | 1.136e-12 | (3FAPSAT) | SEA power supply temperature |
Spacecraft Main Temperature | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
TAPE1PST | 312.81 | 0.30 | -1.023e+00 | -7.482e+00 | K | PEA-1 POWER SUPPLY TEMP |
TCYLAFT3 | 263.50 | 1.18 | 1.050e+00 | -1.808e+02 | K | CNT CYL TEMP:16-IN FWD OF SC-TS FIT-3 |
TEP_BPAN | 268.32 | 1.03 | -3.736e-01 | -1.598e+02 | K | BATT PNL TEMP OPPOSITE TEP_PPAN |
TSAMYT | 320.02 | 1.13 | 1.474e+01 | -2.118e+00 | K | -Y WING SOLAR ARRAY TEMP |
TSAPYT | 319.53 | 1.11 | 1.489e+01 | -9.461e+00 | K | +Y WING SOLAR ARRAY TEMP |
OBA Heater | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
OOBTHR02 | 283.85 | 9.747e-02 | -4.146e-02 | -6.040e+00 | K | RT 25: HRMA STRUT |
OOBTHR14 | 285.14 | 0.56 | -8.534e-01 | -3.759e+01 | K | RT 37: OBA CONE |
OOBTHR22 | 285.60 | 1.11 | -2.148e+00 | -8.292e+01 | K | RT 44: OBA CONE |
OOBTHR64 | 787.00 | 0.000e+00 | 0.000e+00 | 0.000e+00 | CNT | IP INTERNAL CALIBRATION OBA CH. 63 |
Year | Month | |||||||||||
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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 | ||