- M&TA MONTHLY REPORT -

March 2020

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Configuration/Radiation Overview for March 2020

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_mar20 6004901       7.142         9.708           0.0     2543
    
    
    I2 node 0  262654	7.296611	3.328970	0.0	 48.0
    I2 node 1  262654	7.532224	5.708401	0.0	1713.0
    I2 node 2  262654	7.323152	3.274131	0.0	 83.0
    I2 node 3  262654	7.464216	7.745395	0.0	2543.0
    
    I3 node 0  262654	9.908819	4.083133	0.0	261.0
    I3 node 1  262654	9.781789	5.780376	0.0	2177.0
    I3 node 2  262654	9.559493	3.798581	0.0	 99.0
    I3 node 3  262654	9.634651	3.911329	0.0	182.0
    
    S2 node 0  262654	8.887194	6.196716	0.0	2482.0
    S2 node 1  262654	9.093456	4.147710	0.0	313.0
    S2 node 2  262654	9.309099	4.109849	0.0	342.0
    S2 node 3  262654	9.100832	7.922418	0.0	2323.0
    
    S3 node 0  262654	10.433391	3.800233	0.0	 74.0
    S3 node 1  262654	12.099000	5.079450	0.0	1166.0
    S3 node 2  262654	11.773104	3.847790	0.0	 55.0
    S3 node 3  262654	10.670226	3.603211	0.0	 33.0
    
    
  • Jul 1999 - Mar 2020 registered-photon-map in fits
  • Cumulative Dose Map


    TOTAL


    CCD I3


    CCD S3
    
    Statistics:
     IMAGE     NPIX      MEAN        RMS           MIN      MAX
    ACIS_total   6004901       2377.209         3067.182           0.0   132938
    
    
    I2 node 0  262654	2061.199769	411.219717	436.0	11994.0
    I2 node 1  262654	2168.382641	578.798074	450.0	104877.0
    I2 node 2  262654	2196.409851	464.772497	458.0	12278.0
    I2 node 3  262654	2201.788428	567.784627	442.0	28665.0
    
    I3 node 0  262654	2348.902122	578.325274	438.0	10673.0
    I3 node 1  262654	2428.711633	1706.330665	462.0	55444.0
    I3 node 2  262654	2149.702956	400.626259	435.0	12474.0
    I3 node 3  262654	2142.211641	430.932715	396.0	33006.0
    
    S2 node 0  262654	2773.096940	440.349153	1537.0	22031.0
    S2 node 1  262654	2938.847300	658.785431	1707.0	16076.0
    S2 node 2  262654	3248.501340	662.200774	2136.0	27865.0
    S2 node 3  262654	3202.225322	521.525385	1888.0	62806.0
    
    S3 node 0  262654	4892.563342	2332.677194	2148.0	34200.0
    S3 node 1  262654	6121.780692	2296.978943	0.0	30680.0
    S3 node 2  262654	4870.817348	1286.466024	2125.0	25806.0
    S3 node 3  262654	3773.647856	679.815261	2312.0	25227.0
    
    
  • Integrated Exposure Maps of Last 12 Months
  • Dec 2019 Sep 2019 Jun 2019 Mar 2019

    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 2020 Focal Temperature

    The Mean (max) FPT:
    -112.01 +/- 3.44 C
    Mean Width:
    0.8 +/- 0.31 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.


    -->

    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_2020.fits  16777216	0.104 	0.332 	0.000 	14.000 
    
  • AUG 1999 - Mar 2020 HRCI Dose in fits
  • IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_03_2020.fits  16777216	6.264 	5.979 	0.000 	305.000 
    
  • Mar HRCS Dose in fits
  • IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_03_2020.fits  16777216	0.203 	0.551 	0.000 	22.000 
    
  • AUG 1999 - Mar 2020 HRCS Dose in fits
  • IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_08_1999_03_2020.fits  16777216	19.005 	34.199 	0.000 	1750.000 
    
    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 2019 Sep 2019 Jun 2019 Mar 2019
  • HRC S: Integrated Exposure Maps of Last 12 Months
  • Dec 2019 Sep 2019 Jun 2019 Mar 2019

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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 - Entire Period

    ACA Trending - Mar 2020

    Gyro Bias Drift


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    Radiation History

    Radiation Count Rates of Mar 2020


    Sun Spot History


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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

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    Links to Past Monthly Reports


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