Science Run Interruptions
The observations were interrupted due to high radiation on Dec 21, 11:52pm (EST) and again on Dec 23, 6:33am (EST). The total science loss combined was 126.7 ks. Radiation Count Rate Plots for Periods Which Interrupted Science Runs).
(only Dec 22 interruption is shown.)
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_dec14 6004901 6.526 8.959 0.0 2029 I2 node 0 262654 6.650918 3.084143 0.0 34.0 I2 node 1 262654 6.980629 3.374348 0.0 149.0 I2 node 2 262654 6.764765 3.063488 0.0 48.0 I2 node 3 262654 6.855912 6.515018 0.0 2029.0 I3 node 0 262654 7.341841 3.399907 0.0 273.0 I3 node 1 262654 7.529652 6.674622 0.0 146.0 I3 node 2 262654 6.808495 3.019465 0.0 64.0 I3 node 3 262654 7.017077 3.135246 0.0 93.0 S2 node 0 262654 8.160202 3.390117 0.0 80.0 S2 node 1 262654 8.279311 3.820287 0.0 72.0 S2 node 2 262654 8.483360 6.627588 0.0 1500.0 S2 node 3 262654 8.197266 3.512990 0.0 427.0 S3 node 0 262654 11.236837 5.351217 0.0 114.0 S3 node 1 262654 12.740682 4.840870 0.0 94.0 S3 node 2 262654 12.178198 3.998202 0.0 53.0 S3 node 3 262654 11.047378 3.704210 0.0 36.0
Statistics: IMAGE NPIX MEAN RMS MIN MAX ACIS_total 6004901 1849.039 2427.208 0.0 107167 I2 node 0 262654 1551.484757 296.951575 286.0 9068.0 I2 node 1 262654 1635.848170 410.016048 321.0 37313.0 I2 node 2 262654 1665.832005 348.372549 324.0 9187.0 I2 node 3 262654 1663.753308 419.086904 307.0 28002.0 I3 node 0 262654 1747.716161 416.017356 306.0 6869.0 I3 node 1 262654 1834.777875 1389.873352 312.0 35185.0 I3 node 2 262654 1603.410341 287.565322 297.0 8177.0 I3 node 3 262654 1589.067771 308.024704 282.0 27061.0 S2 node 0 262654 2164.945328 315.261695 1141.0 21197.0 S2 node 1 262654 2303.947876 504.204546 1199.0 12751.0 S2 node 2 262654 2538.746745 482.058943 1520.0 19181.0 S2 node 3 262654 2461.013538 341.969991 1421.0 41836.0 S3 node 0 262654 3847.679075 1793.316121 1569.0 13535.0 S3 node 1 262654 5021.525070 2077.902323 0.0 14020.0 S3 node 2 262654 3829.176559 985.755099 1566.0 9332.0 S3 node 3 262654 2968.428712 451.048253 1694.0 10321.0
Sep 2014 | Jun 2014 | Mar 2014 | Dec 0213 |
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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
Dec 2014 Focal Temperature
The Mean (max) FPT: | |
---|---|
-109.24 | +/- 7.39 C |
Mean Width: | |
0.98 | +/- 1.09 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 |
HRC
DOSE of Central 4K Pore-Pairs
Please refer to Maximum Dose Trends for more details.
IMAGE NPIX MEAN STDDEV MIN MAX HRCI_12_2014.fits 16777216 0.005 0.0771 0.0 7.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCI_08_1999_12_2014.fits 16777216 4.304 4.895 0.0 292.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCS_12_2014.fits 16777216 0.030 0.1851 0.0 9.0
IMAGE NPIX MEAN STDDEV MIN MAX HRCS_08_1999_12_2014.fits 16777216 15.588 27.267 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.
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Sep 2014 | Jun 2014 | Mar 2014 | Dec 2013 |
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Sep 2014 | Jun 2014 | Mar 2014 | Dec 2013 |
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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.
PCAD
ACA Trending
Fid Light Drift
Fid light positions on ACA drift with time. The drift trends of Fid light 2 with ACIS-I and ACIS-S configurations are shown below.
The top panel shows Fid light 2 drift in ACENT I (app. along with -Y axis), and the
bottom panel shows that in ACENT J (app. along with Z axis). The unit is a pixel, and
one pixel is approximately 0.5 arcsec. The slope listed at the top right corner is
the change in a position per year (arcsec/yr). The vertical line on DOM = 1411 (Jun 1, 2003)
indicates a transition date of use of IRU-1 to IRU-2.
See also Tom Aldcroft's updated page:
https://cxc.cfa.harvard.edu/mta/ASPECT/fid_drift
Fid 2 (ACIS-I)
Fid 2 (ACIS-S)
Fid 8 (HRC-I)
Fid 12 (HRC-S)
Gyro Bias Drift
Radiation History
Radiation Zone Timing
Sun Spot History
Trending
Critical Trends
ACIS Temperatures - Daily Maximums | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
1PDEAAT | 304.92 | 8.78 | -3.089e-01 | 3.264e+00 | K | PSMC DEA PS A TEMP |
1PIN1AT | 291.78 | 7.86 | -1.034e-01 | 2.775e+00 | K | PSMC TEMP 1A |
HRMA Computed Averages - Daily Maximums | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
OBAAVG | 291.47 | 1.78 | -4.586e+00 | -5.868e+01 | TEMP | OBA/TFTE |
EPHIN Temperatures - Daily Maximums | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
TEIO | 329.19 | 20.85 | 6.859e+00 | -9.822e+00 | K | EPHIN ELECTRONICS HOUSING TEMP |
TEPHIN | 334.09 | 6.72 | 3.888e+00 | -3.198e+01 | K | EPHIN SENSOR HOUSING TEMP |
S/C Main Temperatures - Daily Maximums | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
TCYLFMZM | 306.24 | 25.91 | 2.143e+00 | 2.840e+00 | K | CNT CYL TEMP:-Z SIDE UNDER LAE-1 |
TCYLFMZP | 308.42 | 24.75 | 2.145e+00 | 2.966e+00 | K | CNT CYL TEMP:-Z SIDE UNDER LAE-2 |
S/C Ancillary Temperatures - Daily Maximums | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
TFSSBKT1 | 345.92 | 17.04 | 4.986e-01 | -3.728e+01 | K | FSS BRACKET-1 TEMP (+Y) |
TFSSBKT2 | 340.90 | 24.18 | 3.892e+00 | -6.609e+01 | K | FSS BRACKET-2 TEMP (+Y) |
TSCTSF1 | 302.70 | 3.24 | 2.501e+00 | -1.019e+01 | K | SC-TS FITTING -1 TEMP |
TSCTSF6 | 304.79 | 3.63 | 2.945e+00 | -1.370e+01 | K | SC-TS FITTING -6 TEMP |
MUPS - Daily Maximums | ||||||
---|---|---|---|---|---|---|
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
PM1THV1T | 333.47 | 8.23 | -2.762e-01 | -1.892e+02 | K | MUPS 1 THRUSTER VALVE 01 TEMP |
PLINE02T | 317.64 | 11.13 | 3.347e+00 | 5.826e+00 | K | PROP LINE TEMP 02 |
PLINE03T | 316.64 | 13.64 | 3.278e+00 | 7.846e+00 | K | PROP LINE TEMP 03 |
PLINE04T | 302.24 | 12.73 | 3.233e+00 | 7.055e+00 | K | PROP LINE TEMP 04 |
Quarterly Trends
- Spacecraft Main Temperature
Previous Quarter | ||||||
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
TASPPCM | 292.36 | 3.51 | 1.357e+00 | 1.847e+02 | K | AFT SHEAR PANEL TEMP:-Z PCAD COMP |
TCYLAFT1 | 305.81 | 3.84 | 2.428e+00 | 2.223e+02 | K | CNT CYL TEMP:16-IN FWD OF SC-TS FIT-1 |
TCYLAFT2 | 280.46 | 1.87 | 3.745e+00 | 9.440e+01 | K | CNT CYL TEMP:16-IN FWD OF SC-TS FIT-2 |
TPZLGABM | 210.90 | 1.23 | -1.055e+00 | -7.339e+00 | K | +Z LOW-GAIN ANTENNA BOOM TEMP |
TSAMYT | 321.13 | 0.96 | 1.216e+01 | -5.127e+01 | K | -Y WING SOLAR ARRAY TEMP |
TSAPYT | 320.91 | 0.96 | 1.235e+01 | -3.957e+01 | K | +Y WING SOLAR ARRAY TEMP |
- Spacecraft Anc. Temperature
Previous Quarter | ||||||
MSID | MEAN | RMS | DELTA/YR | DELTA/YR/YR | UNITS | DESCRIPTION |
TSCTSF1 | 303.47 | 3.38 | 1.015e+00 | 9.105e+01 | K | SC-TS FITTING -1 TEMP |
TSCTSF2 | 279.31 | 1.62 | 3.130e+00 | 7.288e+01 | K | SC-TS FITTING -2 TEMP |
TSCTSF3 | 265.06 | 1.27 | 3.610e+00 | 2.521e+01 | K | SC-TS FITTING -3 TEMP |
TSCTSF4 | 268.89 | 1.45 | 2.935e+00 | 4.175e+01 | K | SC-TS FITTING -4 TEMP |
TSCTSF5 | 285.01 | 2.31 | 7.297e-01 | 9.070e+01 | K | SC-TS FITTING -5 TEMP |
TSCTSF6 | 305.71 | 3.94 | -1.610e+00 | 1.111e+01 | K | SC-TS FITTING -6 TEMP |
Envelope Trending
OBA Forward Bulkhead
PCAD FTS Grad
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 | |||||||||||
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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 | 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 | Nov |