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.
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Statistics: # IMAGE NPIX MEAN RMS MIN MAX ACIS_may16 6004901 7.214 12.499 0.0 4541 I2 node 0 262654 7.094816 3.175953 0.0 52.0 I2 node 1 262654 7.435549 3.938164 0.0 947.0 I2 node 2 262654 7.437003 3.303973 0.0 74.0 I2 node 3 262654 7.585659 12.776205 0.0 4126.0 I3 node 0 262654 9.025751 3.850523 0.0 105.0 I3 node 1 262654 9.194995 8.890417 0.0 204.0 I3 node 2 262654 8.333582 3.462162 0.0 81.0 I3 node 3 262654 8.669100 8.009322 0.0 2443.0 S2 node 0 262654 8.797292 7.901148 0.0 2162.0 S2 node 1 262654 9.104700 7.254103 0.0 778.0 S2 node 2 262654 9.510225 9.398308 0.0 2244.0 S2 node 3 262654 9.119405 11.655304 0.0 4541.0 S3 node 0 262654 12.612416 25.077644 0.0 1015.0 S3 node 1 262654 12.051097 5.929839 0.0 274.0 S3 node 2 262654 11.910501 5.920318 0.0 227.0 S3 node 3 262654 10.908306 5.913009 0.0 248.0
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Statistics: IMAGE NPIX MEAN RMS MIN MAX ACIS_total 6004901 2010.185 2622.268 0.0 115117 I2 node 0 262654 1711.136872 329.346853 349.0 9302.0 I2 node 1 262654 1802.435258 454.860572 365.0 49316.0 I2 node 2 262654 7.437003 3.303973 0.0 74.0 I2 node 3 262654 1833.358653 462.969381 355.0 28231.0 I3 node 0 262654 1931.745725 462.752975 342.0 7533.0 I3 node 1 262654 2022.701405 1528.490580 349.0 38093.0 I3 node 2 262654 1769.879275 319.771560 337.0 9501.0 I3 node 3 262654 8.669100 8.009322 0.0 2443.0 S2 node 0 262654 2346.584808 343.113646 1257.0 21427.0 S2 node 1 262654 9.104700 7.254103 0.0 778.0 S2 node 2 262654 2750.200486 525.547767 1673.0 27378.0 S2 node 3 262654 2686.208187 380.632171 1564.0 47051.0 S3 node 0 262654 4174.425364 1853.560751 1726.0 13877.0 S3 node 1 262654 5364.022456 2140.692580 0.0 14336.0 S3 node 2 262654 4139.181476 1047.565798 1720.0 9976.0 S3 node 3 262654 3202.226377 485.303071 1834.0 10788.0
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| Feb 2016 | Nov 2015 | Aug 2015 | May 2015 |
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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
Apr 2016 Focal Temperature
| The Mean (max) FPT: | |
|---|---|
| -114.62 | +/- 1.73 C |
| Mean Width: | |
| 0.89 | +/- 0.32 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
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HRC
DOSE of Central 4K Pore-Pairs
Please refer to Maximum Dose Trends for more details.
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IMAGE NPIX MEAN STDDEV MIN MAX
HRCI_05_2016.fits 16777216 0.021 0.1479 0.0 4.0
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IMAGE NPIX MEAN STDDEV MIN MAX
HRCI_08_1999_05_2016.fits 16777216 4.420 4.988 0.0 292.0
No Data
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IMAGE NPIX MEAN STDDEV MIN MAX
HRCS_08_1999_05_2016.fits 16777216 15.966 28.515 0.0 1700.0
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Max dose trend plots corrected for events that "pile-up"
in the center of the taps due to bad position information.
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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.
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PCAD
ACA Trending
Gyro Bias Drift
Radiation History
Radiation Zone Timing
Plotted below are radiation zone timing plots based on the following definitions of radiation zone:
- RADZONE - Ephin levels (in any of the E1300,P4GM,P41GM channels) are more than 1/3 of RADMON safing thresholds.
- RADMON - Radmon is disabled for radiation zone (as commanded based on OFLS model, for comparison with actual radiation levels).
- PERIGEE - Time of closest earth approach (for comparison)
Radiation Count Rates of May 2016
Sun Spot History
Trending
Quarterly Trends
- EPHIN Temperature and Voltage
| Previous Quarter | ||||||
| MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
| 5EIOT | 352.76 | 18.66 | -9.305e+00 | -9.050e+01 | K | EIO TEMP |
| 5EPHINT | 334.03 | 5.49 | -2.249e+01 | -4.574e+01 | K | EPHIN TEMP |
| HKEBOXTEMP | 339.15 | 5.70 | -2.314e+01 | -7.292e+01 | K | EPHIN HOUSEKEEPING EBOX: TEMPERATURE (5EHSE300) |
| HKN6I | 73.20 | 0.33 | 1.486e+00 | 2.540e+01 | AMP | HK 6 Volts Rail - Current |
| HKN6V | -5.97 | 1.111e-02 | -3.264e-02 | -2.692e-01 | V | HK -6 Volts Rail - Voltage |
| HKP27I | 7.01 | 8.166e-02 | 2.652e-01 | 2.817e+00 | AMP | HK 27 Volts Rail - Current |
| HKP27V | 26.88 | 5.087e-02 | -1.469e-01 | -1.175e+00 | V | HK 27 Volts Rail - Voltage |
| HKP5I | 48.42 | 1.62 | 1.724e+00 | -1.286e+02 | AMP | HK 5 Volts Rail - Current |
| HKP5V | 5.08 | 6.157e-03 | 1.416e-02 | 3.013e-01 | V | HK 5 Volts Rail - Voltage |
| HKP6I | 137.48 | 0.65 | -2.437e+00 | -8.384e+00 | AMP | HK 6 Volts Rail - Current |
| HKP6V | 5.77 | 1.360e-02 | 2.631e-02 | -5.013e-02 | V | HK 6 Volts Rail - Voltage |
| TEIO | 326.46 | 19.93 | -1.205e+01 | -1.995e+02 | K | EPHIN ELECTRONICS HOUSING TEMP |
| TEPHIN | 334.13 | 5.71 | -2.222e+01 | -5.862e+01 | K | EPHIN SENSOR HOUSING TEMP |
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- HRC Temperature
| Previous Quarter | ||||||
| MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
| 2CEAHVPT | 298.39 | 1.89 | -9.455e-01 | -9.797e+01 | K | CEA RADIATOR TEMPERATURE AT CENTER |
| 2CHTRPZT | 294.89 | 1.87 | -5.013e-01 | -9.786e+01 | K | CENTRAL ELECTRONICS BOX TEMP |
| 2CONDMXT | 291.80 | 2.07 | 3.463e-01 | -1.600e+02 | K | CONDUIT -X FACE TEMPERATURE |
| 2DCENTRT | 290.58 | 1.66 | 5.932e-01 | -1.052e+02 | K | DETECTOR HOUSING TEMP 2 |
| 2DTSTATT | 291.62 | 1.73 | 1.326e+00 | -1.368e+02 | K | DETECTOR HOUSING TEMP 1 |
| 2FHTRMZT | 294.03 | 2.00 | 1.989e+00 | -1.684e+02 | K | FRONT END ELECTRONICS BOX TEMPERATURE |
| 2FRADPYT | 289.94 | 2.08 | 2.143e+00 | -1.653e+02 | K | FRONT END ASSEMBLY +Y AT RADIATOR CENTER TEMP |
| 2PMT1T | 292.14 | 2.20 | 2.214e+00 | -1.919e+02 | K | PMT 1 TEMPERATURE |
| 2PMT2T | 294.57 | 2.44 | 2.721e+00 | -2.283e+02 | K | PMT 2 TEMPERATURE |
| 2UVLSPXT | 286.28 | 1.93 | 1.496e-02 | -7.683e+01 | K | UV LIGHT SHIELD NEXT TO SNOUT TEMP |
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- HRC HK
| Previous Quarter | ||||||
| MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
| FE00ATM | 20.93 | 1.57 | 1.694e+00 | -1.302e+02 | C | Front end temperature (2FE00ATM) |
| FEPRATM | 23.42 | 1.81 | 1.917e+00 | -1.480e+02 | C | FE temp card temperature (2FEPRATM) |
| IMHVATM | 30.21 | 1.59 | 8.098e-01 | -8.544e+01 | (2IMHVATM)C | Imaging det HVPS temperature |
| IMINATM | 17.00 | 1.63 | 7.844e-01 | -8.759e+01 | C | Imaging det temperature (2IMINATM) |
| LVPLATM | 26.64 | 1.42 | -9.847e-02 | -7.541e+01 | C | LVPS plate temperature (2LVPLATM) |
| PRBSCR | 1.58 | 2.786e-02 | -5.638e-02 | 1.764e+00 | AMP | Primary bus current (2PRBSCR) |
| PRBSVL | 27.52 | 0.18 | 2.166e+00 | 2.958e+00 | V | Primary bus voltage (2PRBSVL) |
| SMTRATM | 5.66 | 5.412e-02 | -3.894e-02 | 3.700e+00 | C | Selected motor temperature (2SMTRATM) |
| SPHVATM | 30.58 | 1.62 | -2.978e+00 | -5.515e+01 | C | Spect det HVPS temperature (2SPHVATM) |
| SPINATM | 18.33 | 1.60 | 2.689e-01 | -8.984e+01 | C | Spect det temperature (2SPINATM) |
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Envelope Trending
SIM Electronics
SIM Temperature
Spacecraft Electronics
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 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | Jan | Feb | Mar | Apr | ||||||||
| 2015 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 2014 | 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 |
| 2012 | 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 |
| 2010 | 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 |
| 2008 | 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 |
| 2006 | 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 |
| 2004 | 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 |
| 2002 | 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 |
| 2000 | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
| 1999 | Jul | Aug | Sep | Oct | Nov | Dec | ||||||