- M&TA MONTHLY REPORT -

March 2021

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Configuration/Radiation Overview for March 2021

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.

  • March registered-photon-map in fits

  • March Dose Map


    TOTAL


    CCD I3


    CCD S3

    Statistics:
    # IMAGE     NPIX     MEAN        RMS        MIN     MAX
    ACIS_mar21 6004901       5.912         7.666           0.0      393
    
    
    I2 node 0  262654	7.043748	3.257603	0.0	 64.0
    I2 node 1  262654	7.382715	3.464615	0.0	113.0
    I2 node 2  262654	7.253635	3.265505	0.0	 84.0
    I2 node 3  262654	7.171610	3.453183	0.0	339.0
    
    I3 node 0  262654	8.121999	3.572305	0.0	164.0
    I3 node 1  262654	7.662591	3.316669	0.0	109.0
    I3 node 2  262654	7.605500	3.250392	0.0	 87.0
    I3 node 3  262654	7.729460	3.376713	0.0	119.0
    
    S2 node 0  262654	6.013059	2.922271	0.0	 46.0
    S2 node 1  262654	6.053824	3.073399	0.0	171.0
    S2 node 2  262654	6.303098	3.107670	0.0	205.0
    S2 node 3  262654	6.273041	3.083219	0.0	315.0
    
    S3 node 0  262654	9.653359	4.430739	0.0	 87.0
    S3 node 1  262654	11.045518	4.420815	0.0	393.0
    S3 node 2  262654	10.792693	3.782250	0.0	 52.0
    S3 node 3  262654	9.662267	3.508087	0.0	 37.0
    
    
  • Jul 1999 - Mar 2021 registered-photon-map in fits
  • Cumulative Dose Map


    TOTAL


    CCD I3


    CCD S3
    
    Statistics:
     IMAGE     NPIX      MEAN        RMS           MIN      MAX
    ACIS_total   6004901       2472.159         3174.735           0.0   137610
    
    
    I2 node 0  262654	2139.069223	428.518226	458.0	12666.0
    I2 node 1  262654	2249.767729	605.440262	470.0	115815.0
    I2 node 2  262654	2276.204696	481.308617	484.0	13162.0
    I2 node 3  262654	2281.326989	588.354662	460.0	28745.0
    
    I3 node 0  262654	2448.095650	601.920277	450.0	12847.0
    I3 node 1  262654	2525.288195	1715.904758	487.0	55575.0
    I3 node 2  262654	2244.112210	419.310925	456.0	13197.0
    I3 node 3  262654	2236.800250	451.263598	425.0	33904.0
    
    S2 node 0  262654	2885.118777	461.137073	1582.0	22205.0
    S2 node 1  262654	3057.301552	686.662741	1760.0	16663.0
    S2 node 2  262654	3380.020290	681.542389	2183.0	28532.0
    S2 node 3  262654	3345.737911	535.363939	1927.0	67704.0
    
    S3 node 0  262654	5105.144757	2453.316742	2232.0	37134.0
    S3 node 1  262654	6332.688718	2326.379005	0.0	37007.0
    S3 node 2  262654	5067.056943	1292.374004	2275.0	26210.0
    S3 node 3  262654	3941.329540	688.917905	2406.0	25568.0
    
    
  • Integrated Exposure Maps of Last 12 Months
  • Dec 2020 Sep 2020 Jun 2020 Mar 2020

    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

    Mar 2021 Focal Temperature

    The Mean (max) FPT:
    -112.66 +/- 3.07 C
    Mean Width:
    0.72 +/- 0.45 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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    ACIS Rejected Events

    The links below are plots of stat1 quantities, showing on-board rejected events. The average EVTSENT, DROP_AMP, DROP_POS, DROP_GRD, THR_PIX, and maximum BERR_SUM obtained from L1 acis*stat1.fits files are plotted for each observation. CTI observations are plotted separately from regular science observations.

    Column definitions:

    Note the half-life decline of the CTI source is clearly evidenced in the steady janline of EVTSENT.

    CCD3 Observations

    CTIScience

    CCD7 Observations

    CTIScience

    ACIS Gain Trends

    We computed ACIS gain and offset from ACIS event1 files used in CTI computation, following the step described by C. Grant ACIS gain @ -120C page.

    Instead computing gains and offsets from individual observations, we combined all data from each month and computed an monthly averaged gain and offset.

    The following plots show CCD3 and CCD5 gains and offset trends.

    CCD 3
     
    CCD 5

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    HRC

    DOSE of Central 4K Pore-Pairs

    Please refer to Maximum Dose Trends for more details.

  • Mar HRCI Dose in fits
  • IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_03_2021.fits  16777216	0.026 	0.162 	0.000 	6.000 
    
  • AUG 1999 - Mar 2021 HRCI Dose in fits
  • IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_03_2021.fits  16777216	6.793 	6.214 	0.000 	311.000 
    
  • Mar HRCS Dose in fits
  • IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_03_2021.fits  16777216	0.318 	0.735 	0.000 	16.000 
    
  • AUG 1999 - Mar 2021 HRCS Dose in fits
  • IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_08_1999_03_2021.fits  16777216	19.820 	35.247 	0.000 	1755.000 
    
    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
  • Dec 2020 Sep 2020 Jun 2020 Mar 2020
  • HRC S: Integrated Exposure Maps of Last 12 Months
  • Dec 2020 Sep 2020 Jun 2020 Mar 2020

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    Gratings

    Grating Trends/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 Trends pages.


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    PCAD

    ACA Trending

    ACA Trending - May 2020

    ACIS  
     
    HRCI
    HRCI

    Gyro Bias Drift


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    Radiation History

    Radiation Count Rates of Mar 2021


    Sun Spot History (See:NOAA Page)


    TOP


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    Trending

    Critical Trends








    Quarterly Trends




    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.