- M&TA MONTHLY REPORT -

December 2014

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Configuration/Radiation Overview for Dec 2014

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;

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

  • Dec registered-photon-map in fits

  • Dec Dose Map


    TOTAL


    CCD I3


    CCD S3

    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
    
  • Jul 1999 - Dec 2014 registered-photon-map in fits
  • Cumulative Dose Map


    TOTAL


    CCD I3


    CCD S3
    
    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
    
  • Integrated Exposure Maps of Last 12 Months
  • Sep 2014 Jun 2014 Mar 2014 Dec 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

    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
    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.

  • Dec HRC-I Dose in fits
  •   
             IMAGE                NPIX      MEAN    STDDEV      MIN       MAX  
     HRCI_12_2014.fits          16777216   0.005    0.0771      0.0       7.0 
     
  • AUG 1999 - DEC 2014 HRC-I Dose in fits
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_12_2014.fits  16777216   4.304    4.895       0.0       292.0                                
    
  • Oct HRC-S dose fits image - no observations

  • Dec HRC-S Dose
  •     
              IMAGE                NPIX      MEAN    STDDEV      MIN       MAX      
    HRCS_12_2014.fits          16777216     0.030    0.1851     0.0        9.0                                  
    
  • AUG 1999 - DEC 2014 HRC-S Dose in fits
  •         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.

  • HRC I: Integrated Exposure Maps of Last 12 Months
  • Sep 2014 Jun 2014 Mar 2014 Dec 2013
  • HRC S: Integrated Exposure Maps of Last 12 Months
  • 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.


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    PCAD

    ACA Trending

    ACA Trending - Entire Period

    ACA Trending - DEC 2014

    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


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    Radiation History

    Radiation Zone Timing

    Sun Spot History


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    Trending

    Critical Trends








    Quarterly Trends



    Envelope Trending

    OBA Forward Bulkhead







    PCAD FTS Grad







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    Spacecraft Motions

    TSC and FA Cummulative Moter Distance

    HETG and LETG Cummulative Insertion Counts

    HETG/LETG Insertion/Retraction Angle

    Reaction Wheel Rotations

    TOP


    Links to Past Monthly Reports


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    If you have any questions about this page, please contact swolk@head.cfa.harvard.edu.