- M&TA MONTHLY REPORT -

April 2014

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OUTLINE

  1. Configuration
  2. ACIS
  3. HRC - Dose
  4. Gratings - Focus
  5. Resolving Power, E/dE
  6. SIM Twist
  7. PCAD
  8. Radiation History
  9. Quarterly Trending
  10. Trending
  11. Spacecraft Motions
  12. Past Monthly Report

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.

  • Apr registered-photon-map in fits

    • Apr Dose Map


    TOTAL

    CCD I3

    CCD S3 

    Statistics:
# IMAGE     NPIX        MEAN           RMS              MIN     MAX
ACIS_apr14 6004901      6.117          11.690           0.0     1523


I2 node 0  262654   5.042107    3.932449    0.0 1523.0
I2 node 1  262654   5.143035    2.829947    0.0  307.0
I2 node 2  262654   5.015190    2.552085    0.0   40.0
I2 node 3  262654   5.145186    4.013764    0.0 1518.0

I3 node 0  262654   6.228551    2.986787    0.0   34.0
I3 node 1  262654   6.485146    5.311605    0.0  297.0
I3 node 2  262654   5.930261    2.775927    0.0   46.0
I3 node 3  262654   6.002621    2.860615    0.0  204.0

S2 node 0  262654   6.943616    3.004395    0.0   38.0
S2 node 1  262654   7.053754    3.292926    0.0   44.0
S2 node 2  262654   7.405779    5.510373    0.0 1512.0
S2 node 3  262654   7.416354    3.135740    0.0  344.0

S3 node 0  262654   17.358138   29.457278   0.0  293.0
S3 node 1  262654   19.608275   28.835145   0.0  289.0
S3 node 2  262654   9.885689    3.411069    0.0   35.0
S3 node 3  262654   8.335267    3.025413    0.0   25.0
  • Jul 1999 - Apr 2014 registered-photon-map in fits

    • Cumulative Dose Map


    TOTAL

    CCD I3

    CCD S3 
    
Statistics:
 IMAGE        NPIX      MEAN             RMS            MIN    MAX
ACIS_total   6004901    1783.629         2350.005       0.0   104258


I2 node 0  262654   1515.059032 300.253727     0.0   9016.0
I2 node 1  262654   1592.613297 405.399440     0.0  37104.0
I2 node 2  262654   1619.730213 346.761242     0.0   7023.0
I2 node 3  262654   1616.611824 410.758174     0.0   9422.0

I3 node 0  262654   1694.547852 414.022899     0.0   6649.0
I3 node 1  262654   1779.362133 1351.445203    0.0  34321.0
I3 node 2  262654   1554.117459 288.553832     0.0   7837.0
I3 node 3  262654   1540.546818 308.125470     0.0  26537.0

S2 node 0  262654   2138.293911 326.654584  1120.0  28687.0
S2 node 1  262654   2276.924202 501.347859  1166.0  12539.0
S2 node 2  262654   2517.623767 492.247327  1511.0  42315.0
S2 node 3  262654   2453.137763 369.997775  1454.0  41098.0

S3 node 0  262654   3753.998663 1750.148029 1540.0  12848.0
S3 node 1  262654   4829.871919 1941.940450    0.0  13146.0
S3 node 2  262654   3723.413929 928.949175  1509.0   9302.0
S3 node 3  262654   2919.388017 450.205170  1666.0   9474.0
  • Integrated Exposure Maps of Last 12 Months
    • Jan 2014 Oct 2013 Jul 2013 Apr 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 2013 Focal Temperature

    The Mean (max) FPT:
    -117.05 +/- 1.86 C
    Mean Width:
    0.44 +/- 0.48 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.


    TOP

    HRC

    DOSE of Central 4K Pore-Pairs

    Please refer to Maximum Dose Trends for more details.

  • SEP HRC-I dose fits image - no observations

  • Apr HRC-I Dose in fits 
    •   
        IMAGE                NPIX      MEAN    STDDEV      MIN       MAX  
HRCI_04_2014.fits          16777216   0.012    0.3429      0.0       11.0
  • AUG 1999 - Apr 2013 HRC-I Dose in fits
    •         IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
HRCI_08_1999_04_2014.fits  16777216   4.254    4.866       0.0       292.0
  • Apr HRC-S Dose 
    •    
          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX     
HRCS_04_2014.fits          16777216     0.031    0.1796     0.0         6.0
  • AUG 1999 - APR 2014 HRC-S Dose in fits 
    •         IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
HRCS_08_1999_04_2014.fits  16777216  15.425     26.984      0.0      1679.0

    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
    • Jan 2014 Oct 2013 Jul 2013 Apr 2013
  • HRC S: Integrated Exposure Maps of Last 12 Months
    • Jan 2014 Oct 2013 Jul 2013 Apr 2013

    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.


    Gratings Resolving Power

    We plot E/dE vs. E for fits to detected lines with fwhm_error/fwhm less than 0.15 for the plus and minus arms of HEG, MEG, and LEG. Also shown are conservative (dotted line) and optimistic (dashed line) pre-launch resolving power expectations.

    We have selected only calibration observations of Capella, HR1099, and Sigma Gem. See MIT technotes for a parallel analysis.

    Plot symbol indicates dispersion arm: Color indicates observation date:
      Plus side = plus (+)
      Minus side = cross (x)
      1999-2001   green
      A002-2004   blue
      2005-2006   yellow
      2007-2009   orange

    TOP

    PCAD

    ACA Trending

    ACA Trending - Entire Period

    ACA Trending - APR 2014

    Gyro Bias Drift

    TOP

    Radiation History

    Radiation Zone Timing

    Sun Spot History

    TOP

    SIM

    SIM Shift and Twist

    SIM Shift and Twist Trend The following plots show trends of SIM shifts (dy and dz) and twist (dtheta). All quantities are directly taken from pcaf*_asol1.fits files. The units are mm for dy and dz, and degree for dtheta. We fit three lines separated before and after (Days of Mission)= 1400 (May 21, 2003), 2700 (Dec 11, 2006), and 4400 (Aug 07, 2011). The unit of slopes are mm per day or degree per day.

    The sudden shift around DOM = 1400, 2700 and 4400 are due to fid light drift (see a memo by Aldcroft fiducial light drift). On the dtheta plot, two tracks are clearly observed. The track around 0.01 is due to HRC-I, and all others are clustered around -0.002. For more detail, please see SIM Shift and Twist Trend page

    TOP

    Trending

    Quarterly Trends




    Envelope Trending

    SIM Electronics



    SIM Temperature







    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.