- M&TA MONTHLY REPORT -

AUGUST 2010

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Configuration/Radiation Overview for Aug 2010


ACIS

ACIS DOSE Registered-Photon-Map

The steps we took to compute the dose map are;

Please check more detail plots at Telemetered Photon Dose Trend page.

  • AUGUST registered-photon-map in fits

  • Jul Dose Map


    TOTAL


    CCD I3


    CCD S3

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_aug10 6004901      10.06          16.41            0.0     553.0                           
    
     I2 node 0  262654      9.186569        3.751784        0.0      69.0
     I2 node 1  262654      9.718545        4.272606        0.0     242.0
     I2 node 2  262654      9.555527        3.783987        0.0      66.0
     I2 node 3  262654      9.503065        4.039667        0.0      65.0
    
     I3 node 0  262654      9.224819        3.746087        0.0      48.0
     I3 node 1  262654      9.894375        9.706160        0.0     242.0
     I3 node 2  262654      9.000798        3.593159        0.0      64.0
     I3 node 3  262654      8.982185        3.643234        0.0     150.0
    
     S2 node 0  262654      11.872622       4.624929        0.0     302.0
     S2 node 1  262654      12.756898       5.771269        0.0      97.0
     S2 node 2  262654      15.720772       10.518414       0.0     128.0
     S2 node 3  262654      16.848410       15.718104       0.0     552.0
    
     S3 node 0  262654      23.967823       35.699889       0.0     418.0
     S3 node 1  262654      21.087807       19.510205       0.0     221.0
     S3 node 2  262654      18.823510       15.901260       0.0     206.0
     S3 node 3  262654      16.022378       11.329552       0.0     127.0
    
    
    
  • Jul 1999 - Aug 2010 registered-photon-map in fits
  • Cumulative Dose Map


    TOTAL


    CCD I3


    CCD S3
    
    Statistics:
     IMAGE        NPIX      MEAN             RMS            MIN    MAX
    ACIS_total  6004901    1425.96          1919.44         0.0    86746.0
    
     I2 node 0  262654      1162.103733     221.436981      0.0     5590.0
     I2 node 1  262654      1224.882282     295.557512      0.0     22041.0
     I2 node 2  262654      1262.169357     274.260435      0.0     8736.0
     I2 node 3  262654      1257.554292     320.127878      0.0     27550.0
    
     I3 node 0  262654      1320.182001     323.087823      0.0     6179.0
     I3 node 1  262654      1384.542492     1024.045997     0.0     26487.0
     I3 node 2  262654      1198.854353     213.888753      0.0     5517.0
     I3 node 3  262654      1186.922955     229.773551      0.0     21493.0
    
     S2 node 0  262654      1711.899265     234.043729      868.0   20016.0
     S2 node 1  262654      1821.386570     385.661081      895.0   9853.0
     S2 node 2  262654      2022.645301     384.466580      1151.0  13994.0
     S2 node 3  262654      1948.407046     282.581809      1128.0  28951.0
    
     S3 node 0  262654      2886.485589     1382.721123     1197.0  11523.0
     S3 node 1  262654      4134.631637     1841.336228     0.0     12209.0
     S3 node 2  262654      3119.929603     865.997126      1124.0  7771.0
     S3 node 3  262654      2391.754314     395.339761      1283.0  8961.0
    
    
  • Integrated Exposure Maps of Last 12 Months
  • May 2010 Feb 2010 Nov 2009 Aug 2009

    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


    Focal Plane Temperature

    Aug 2010 Focal Temperature

    The Mean (max) FPT:
    -116.79 +/- 3.00 C
    Mean Width:
    0.55 +/- 0.40 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 and Sun Angle, Earth Engle, 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
    Hardest10.00   Beyond 10 keV
    This page shows scientific instrument background data based on Acis observations. A source region file is generated using get_srcregions and then the input event file is filtered using the regions in that file to remove the sources.



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    HRC

    DOSE of Central 4K Pore-Pairs

    Please refer to Maximum Dose Trends for more details.

  • JUL HRC-I Dose in fits
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_2010.fits          16777216   0.084    0.031       0.0       13.0                                 
    
  • AUG 1999 - AUG 2010 HRC-I Dose in fits
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_08_2010.fits  16777216   3.329    4.137       0.0       292.0                                
    
  • JUL HRC-S Dose in fits
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_08_2010.fits          16777216   0.001    0.038       0.0       2.0                                  
    
  • AUG 1999 - JUL 2010 HRC-S Dose in fits
  •         IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
    HRCS_08_1999_08_2010.fits  16777216  13.092      22.009      0.0      1620.0                                
    

    Max dose trend plots corrected for events that "pile-up" in the center of the taps due to bad position information.

  • HRC I: Integrated Exposure Maps of Last 12 Months
  • May 2010 Feb 2010 Nov 2009 Aug 2009
  • HRC S: Integrated Exposure Maps of Last 12 Months
  • May 2010 Feb 2010 Nov 2009 Aug 2009


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    HRMA Focus

    Plots below show various characteristics of detected imaging sources. Standard level 2 data products (*src2.fits) are used. Only observations with focus (sim_x) within 0.01 mm of nominal value for given SI configuration are used. Sources are also filtered for strength (SNR > 15).

    For individual detectors, please go to MTA SRC2 Monitoring page.


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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. (NOTE: the figures are not updated from Mar 2009 due to a system problem.)



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    PCAD

    ACA Trending

    ACA Trending - Entire Period

    ACA Trending - Jul 2010


    Gyro Bias Drift


    ACIS-S and HRC Celestial Location Monitoring

    Science Instrument Positional Change Monitoring

    The following plots are the difference between coordinates obtained from Chandra observations and those obtained from existing catalogs vs time in day of mission.

    The following steps are taken to generate these plots.

    The large dispersion around DOM ~ 2400 (Jan 2005) are all due to none grating Capella observations. Many observations are off-axis observations (e.g., obsid 6558).


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    Radiation History

    Radiation Zone Timing

    Plotted below are radiation zone timing plots based on the following definitions of radiation zone:

    Radiation Count Rates of Aug 2010

    Sun Spot History


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    Trending

    Quarterly Trends


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    Spacecraft Motions

    Reaction Wheel Rotations

    Note: From Feb 2010, the computation of reaction wheel rotations are slightly modified.


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    Links to Past Monthly Reports


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