- M&TA MONTHLY REPORT -

1. Configuration
2. ACIS
   1. Dose
   2. CTI
   3. Focal Plane Temperature
   4. Bad Pixels
   5. Background
   6. Acis Histogram
3. HRC - Dose
4. Gratings
   1. Focus
   2. Resolving Power, E/dE
5. PCAD
   1. ACA Trending
   2. Fid light drift
   3. Gyro bias drift
6. Radiation Zone Timing
7. Quarterly Trends
8. Spacecraft Motions

Configuration/Radiation Overview for May 2007

ACIS

• ACIS DOSE registered-photon-map

  The steps we took to compute the dose map are;

  • Level 1 Event files for a specified month are obtained from archive.
  • Image data including I2, I3, S2, S3 CCDs are extracted from all event files.
  • All the extracted image data were merged to create a month long exposure map for the month.
  • The exposure map is opened with ds9, and check a distribution of count rates against energy. From this, estimate the upper threshold value. Any events beyond this upper threshold are assumed erroneous events such as bad pixels.
  • Using this upper threshold, the data is filtered, and create a cleaned exposure map for the month.
  • The exposure map from each month from the Aug 1999 is added up to create a cumulative exposure map for each month.
  • Using fimgstatistic, we compute count rate statistics for each CCDs.
  • For observations with high data drop rates (e.g., Crab nebula, Cas A), we corrected the observations by adding events.
  Note: Counts and RMS's of Cumulative maps are lower than the previous months. This is because we excluded extreme outliers.

  Please check more detail plots at Telemetered Photon Dose Trend page.

  • MAY registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_may07 6004901      12.382         18.681           0.0     999.0
    
     I2 node 0  262654      10.670906       3.996928        0.0      56.0
     I2 node 1  262654      11.272256       4.469184        0.0     294.0
     I2 node 2  262654      11.178818       4.097612        0.0     168.0
     I2 node 3  262654      11.028580       4.360546        0.0      62.0
    
     I3 node 0  262654      10.708698       4.197866        0.0      52.0
     I3 node 1  262654      12.261917       11.431446       0.0     250.0
     I3 node 2  262654      10.275511       3.857631        0.0      54.0
     I3 node 3  262654      10.202271       3.916435        0.0     184.0
    
     I2 node 0  262654      16.211638       5.251092        1.0     479.0
     I2 node 1  262654      16.769939       6.349094        1.0     120.0
     I2 node 2  262654      18.733525       6.561900        1.0     154.0
     I2 node 3  262654      18.109644       5.532618        1.0     583.0
    
     I3 node 0  262654      25.457698       40.143965       0.0     829.0
     I3 node 1  262654      17.633077       6.862328        0.0      80.0
     I3 node 2  262654      18.899835       7.030900        0.0     156.0
     I3 node 3  262654      17.869250       7.839711        0.0      97.0
    
    

  • Jul 1999 - May 2007 registered-photon-map in fits
    

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901   1008.28       1394.54            0.0   59710.0
    
     I2 node 0  262654      740.461987      130.736026      0.0     3082.0
     I2 node 1  262654      782.399747      179.093186      0.0     9457.0
     I2 node 2  262654      799.657101      155.384223      0.0     2997.0
     I2 node 3  262654      803.401394      193.654541      0.0     3755.0
    
     I3 node 0  262654      851.828160      215.355378      0.0     5053.0
     I3 node 1  262654      880.067650      599.539726      0.0     16038.0
     I3 node 2  262654      777.228310      130.286842      0.0     3180.0
     I3 node 3  262654      767.271107      140.357967      0.0     14228.0
    
     I2 node 0  262654      1185.393329     148.034334      560.0   12600.0
     I2 node 1  262654      1258.809333     255.204986      593.0   6253.0
     I2 node 2  262654      1424.536324     283.319219      784.0   9522.0
     I2 node 3  262654      1380.988852     221.876353      790.0   13650.0
    
     I3 node 0  262654      2260.441525     1241.353548     864.0   10556.0
     I3 node 1  262654      3418.850817     1749.213692     0.0     11538.0
     I3 node 2  262654      2423.927374     769.373059      730.0   4989.0
     I3 node 3  262654      1793.040710     304.700439      908.0   7444.0
    
    
    

  • MAY 2007 dose PNG image
    
  • MAY I3 dose PNG image
    
  • MAY S3 dose PNG image
    
  • TOTAL JUL 1999 - MAY 2007 dose PNG image
    
  • TOTAL I3 dose PNG image
    
  • TOTAL S3 dose PNG image
    
  
  
• Integrated Exposure Maps of Last 12 Months
  

  Feb 2007	Nov 2006	Aug 2006	May 2006

  
  
  
• 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

    
         The Mean (max) FPT: -116.28 C    std dev: 2.49
                 mean width:    1.05 days std dev: 0.65
  

  
  
  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.
  
  
  

  The following is a plot of focal plane temperature and sun angle, earth 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)
  

• Acis Count Rate Plot This monitors the ACIS count Rate vs. EPHIN count Rate.
  No sources or CTI observations are removed. For daily updates see: Ephin/Acis Info




• Science instrument background rates
  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.
  
  

  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
  Hardest	10.00		Beyond 10 keV

  
  
  
  
  

  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

  
  

HRC

DOSE of central 4K pore-pairs



• MAY HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_05_2007.fits          16777216   0.013    0.115       0.0       5.0 
  

  
  
• SEP 1999 - MAY 2007 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_05_2007.fits  16777216   2.350    3.419       0.0       289.0
  

  
  
• MAY HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_05_2007.fits          16777216   0.026    0.162       0.0       4.0 
  

  
  
• SEP 1999 - MAY 2007 HRC-S dose fits image

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_05_2007.fits  16777216  7.812     15.592       0.0      1533.0
  

  
  
• MAY HRC-I dose PNG image
  
• SEP 1999 - MAY 2007 HRC-I dose PNG image
  
• MAY HRC-S dose PNG image
  
• SEP 1999 - MAY 2007 HRC-S dose PNG image
  
  
  See Maximum Dose Trends
  

  We display a max dose trend plot corrected for events that "pile-up" in the center of the taps due to bad position information.

  
  
• Integrated Exposure Maps of Last 12 Months: HRCI
  

  Feb 2007	Nov 2006	Aug 2006	May 2006

  
  
• Integrated Exposure Maps of Last 12 Months: HRCS
  

  Feb 2007	Nov 2006	Aug 2006	May 2006

  
  TOP

• 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.
  
  
  

ACA Trending - Entire Period
ACA Trending - May 2007


Gyro Bias Drift

Plotted below are radiation zone timing plots based on the following definitions of radiation zone:
RADZONE - Ephin levels (in any of the E1300,P4GM,P41GM channels) are more than 1/3 of RADMON safing thresholds.
RADMON - Radmon is disabled for radiation zone (as commanded based on OFLS model, for comparison with actual radiation levels).
PERIGEE - Time of closest earth approach (for comparison).



May 2007 Timing Plots       Entire Mission Timing Plots

Quarterly Trends

• ACIS Electronics Side A

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  1DE28AVO	28.77	0.20	2.154e+00	3.184e-01	V	DEA +28V INPUT A
  1DP28AVO	28.80	0.20	2.148e+00	7.130e-01	V	DPA +28V INPUT A