- M&TA MONTHLY REPORT -

July 2021

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Configuration/Radiation Overview for July 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.

  • July registered-photon-map in fits

  • July Dose Map


    TOTAL


    CCD I3


    CCD S3

    Statistics:
    # IMAGE     NPIX     MEAN        RMS        MIN     MAX
    ACIS_jul21 6004901       5.820         7.665           0.0      640
    
    
    I2 node 0  262654	4.738598	2.581450	0.0	 45.0
    I2 node 1  262654	4.939428	2.713611	0.0	 41.0
    I2 node 2  262654	4.871847	2.578757	0.0	 41.0
    I2 node 3  262654	4.771231	2.706987	0.0	230.0
    
    I3 node 0  262654	5.309656	2.748037	0.0	 66.0
    I3 node 1  262654	5.353569	2.964531	0.0	 84.0
    I3 node 2  262654	5.094764	2.599349	0.0	 49.0
    I3 node 3  262654	5.082035	2.622333	0.0	 75.0
    
    S2 node 0  262654	6.296251	3.126355	0.0	203.0
    S2 node 1  262654	6.739500	3.661391	0.0	149.0
    S2 node 2  262654	7.465215	4.643520	0.0	166.0
    S2 node 3  262654	7.844293	6.493576	0.0	423.0
    
    S3 node 0  262654	13.078117	10.862231	0.0	198.0
    S3 node 1  262654	14.157217	7.669165	0.0	379.0
    S3 node 2  262654	13.918199	6.733856	0.0	194.0
    S3 node 3  262654	12.178731	5.391261	0.0	183.0
    
    
  • Jul 1999 - Jul 2021 registered-photon-map in fits
  • Cumulative Dose Map


    TOTAL


    CCD I3


    CCD S3
    
    Statistics:
     IMAGE     NPIX      MEAN        RMS           MIN      MAX
    ACIS_total   6004901       2505.038         3225.475           0.0   138692
    
    
    I2 node 0  262654	2163.689155	434.062815	464.0	12884.0
    I2 node 1  262654	2275.437350	615.578743	478.0	121530.0
    I2 node 2  262654	2301.819796	487.057202	493.0	13399.0
    I2 node 3  262654	2307.426669	595.958428	467.0	28772.0
    
    I3 node 0  262654	2478.606828	609.390740	458.0	13343.0
    I3 node 1  262654	2556.004300	1722.196874	493.0	55651.0
    I3 node 2  262654	2271.883849	424.844870	463.0	13461.0
    I3 node 3  262654	2264.222511	457.020180	430.0	34168.0
    
    S2 node 0  262654	2920.156078	472.888310	1592.0	22242.0
    S2 node 1  262654	3096.467242	702.570183	1772.0	16798.0
    S2 node 2  262654	3428.487328	709.115810	2192.0	28883.0
    S2 node 3  262654	3391.271565	564.941346	1933.0	68731.0
    
    S3 node 0  262654	5208.718815	2876.083269	2252.0	53092.0
    S3 node 1  262654	6396.794740	2346.120560	0.0	37995.0
    S3 node 2  262654	5136.552528	1333.881723	2305.0	27026.0
    S3 node 3  262654	4009.778708	748.332241	2427.0	26298.0
    
    
  • Integrated Exposure Maps of Last 12 Months
  • Apr 2021 Jan 2021 Oct 2020 Jul 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

    Jul 2021 Focal Temperature

    The Mean (max) FPT:
    -109.79 +/- 6.04 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.


    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 Corner Pixels

    We plot the average corner pixel centroid slope and mean for ACIS observations. Separate plots are shown for FAINT MODE (3X3) and VFAINT MODE (5X5) observations. Metric is the centroid of a Gaussian fit to the histogram of corner pixel PHA values of detected events. Plus signs are FAINT observations, diamonds are VFAINT observations, and boxes are VFAINT observations with centroids computed using only the corner pixels of a 3X3 event island (referred to as AFAINT). We see a very small upward trend.

    CCD: I3

    CCD: S3


    ACIS Bias Trends

    The bias plus overclock level was calculated as follows:

    CCDS 0, 2 and 8 are the most extreme.

    An example of Overclock values as reported in FITS file header:

    An example of mean bias minus overclock value:


    TOP

    HRC

    DOSE of Central 4K Pore-Pairs

    Please refer to Maximum Dose Trends for more details.

  • Jul HRCI Dose in fits
  • IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_07_2021.fits  16777216	0.201 	0.453 	0.000 	5.000 
    
  • AUG 1999 - Jul 2021 HRCI Dose in fits
  • IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_07_2021.fits  16777216	7.231 	6.451 	0.000 	313.000 
    
  • Jul HRCS Dose in fits
  • IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_07_2021.fits  16777216	0.173 	1.023 	0.000 	119.000 
    
  • AUG 1999 - Jul 2021 HRCS Dose in fits
  • IMAGE                       NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_08_1999_07_2021.fits  16777216	20.318 	36.255 	0.000 	1765.000 
    
    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
  • Apr 2021 Jan 2021 Oct 2020 Jul 2020
  • HRC S: Integrated Exposure Maps of Last 12 Months
  • Apr 2021 Jan 2021 Oct 2020 Jul 2020

    TOP


    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.


    TOP


    PCAD

    ACA Trending

    ACA Trending - July 2020

    ACIS  
     
    HRCI
    HRCI

    ACIS-1


    ACIS-6


    HRC-I-1


    HRC-S-1



    Gyro Bias Drift


    Radiation History

    Radiation Count Rates of Jul 2021


    Sun Spot History (See:NOAA Page)


    TOP


    Trending

    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.