- M&TA MONTHLY REPORT -

May 2011

Back to SOT page


Configuration/Radiation Overview for May 2011


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.

  • May registered-photon-map in fits

  • May Dose Map


    TOTAL


    CCD I3


    CCD S3

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_may11 6004901       7.25          9.65             0.0     459 
    
     I2 node 0  262654      7.310062        3.138602        0.0      70.0
     I2 node 1  262654      7.707961        3.572538        0.0     368.0
     I2 node 2  262654      7.570663        3.227086        0.0      66.0
     I2 node 3  262654      7.640947        3.454227        0.0     224.0
    
     I3 node 0  262654      7.107666        3.163893        0.0      42.0
     I3 node 1  262654      7.573112        7.883562        0.0     201.0
     I3 node 2  262654      6.933404        3.059217        0.0      53.0
     I3 node 3  262654      6.982162        3.133624        0.0      95.0
    
     S2 node 0  262654      8.553071        3.282895        0.0      88.0
     S2 node 1  262654      9.325906        3.991278        0.0      66.0
     S2 node 2  262654      10.785712       4.154916        0.0     157.0
     S2 node 3  262654      10.250305       3.880440        0.0     459.0
    
     S3 node 0  262654      11.632575       5.077668        0.0      89.0
     S3 node 1  262654      12.891706       4.844209        0.0      72.0
     S3 node 2  262654      13.816299       4.481496        0.0      43.0
     S3 node 3  262654      13.028789       4.497403        0.0      40.0
    
    
  • Jul 1999 - May 2011 registered-photon-map in fits
  • Cumulative Dose Map


    TOTAL


    CCD I3


    CCD S3
    
    Statistics:
     IMAGE        NPIX      MEAN             RMS            MIN    MAX
    ACIS_total  6004901    1511.87          2033.65         0.0    91471
    
     I2 node 0  262654      1240.335388     238.446873      0.0     6115.0
     I2 node 1  262654      1308.942848     319.185199      0.0     25078.0
     I2 node 2  262654      1344.359508     291.630738      0.0     8822.0
     I2 node 3  262654      1339.939709     342.170222      0.0     27626.0
    
     I3 node 0  262654      1406.321762     344.365342      0.0     6355.0
     I3 node 1  262654      1474.707085     1106.841261     0.0     28507.0
     I3 node 2  262654      1279.992563     231.531199      0.0     6002.0
     I3 node 3  262654      1266.434280     246.929410      0.0     22735.0
    
     S2 node 0  262654      1807.915686     250.428711      928.0   20097.0
     S2 node 1  262654      1923.060053     411.761688      964.0   10553.0
     S2 node 2  262654      2132.795446     402.476065      1240.0  15069.0
     S2 node 3  262654      2059.887798     296.933815      1197.0  31792.0
    
     S3 node 0  262654      3132.230890     1597.727195     1281.0  12905.0
     S3 node 1  262654      4338.546736     1936.480581     0.0     13405.0
     S3 node 2  262654      3274.092425     898.417254      1217.0  8229.0
     S3 node 3  262654      2511.169526     404.969498      1381.0  9265.0
    
    
  • Integrated Exposure Maps of Last 12 Months
  • Feb 2011 Nov 2010 Aug 2010 May 2010

    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

    May 2011 Focal Temperature

    The Mean (max) FPT:
    -113.92 +/- 4.86 C
    Mean Width:
    0.77 +/- 0.70 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.


    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


    TOP


    HRC

    DOSE of Central 4K Pore-Pairs

    Please refer to Maximum Dose Trends for more details.

  • MAY HRC-I Dose in fits
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_05_2011.fits          16777216   0.016    0.221       0.0       35.0                                 
    
  • AUG 1999 - MAY 2011 HRC-I Dose in fits
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_05_2011.fits  16777216   3.537    4.373       0.0       292.0                                
    
  • MAY HRC-S Dose
  •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX 
    HRCS_05_2011.fits          16777216   0.155    0.482       0.0       18.0                                  
    
  • AUG 1999 - MAY 2011 HRC-S Dose in fits
  •         IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
    HRCS_08_1999_05_2011.fits  16777216  13.594      22.657      0.0      1623.0                                
    

    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
  • Feb 2011 Nov 2010 Aug 2010 May 2010
  • HRC S: Integrated Exposure Maps of Last 12 Months
  • Feb 2011 Nov 2010 Aug 2010 May 2010


    TOP


    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.)



    TOP


    PCAD

    ACA Trending

    ACA Trending - Entire Period

    ACA Trending - MAY 2011


    Gyro Bias Drift


    TOP


    Radiation History

    Radiation Zone Timing

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

    Radiation Count Rates of May 2011


    Sun Spot History

    TOP


    Trending

    Quarterly Trends



    TOP


    Spacecraft Motions

    Reaction Wheel Rotations

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


    TOP


    Links to Past Monthly Reports


    Back to SOT page

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