- M&TA MONTHLY REPORT -

1. Configuration
2. ACIS
   1. Dose
   2. CTI
   3. Focal Plane Temperature
   4. Bad Pixels
   5. Background
3. HRC - Dose
4. Gratings - Focus
5. PCAD
   1. Gyro bias drift
   2. Science Instrument Positional Change Monitoring
6. Radiation Zone Timing
7. Quarterly Trends
8. Spacecraft Motions

Configuration/Radiation Overview for March 2005

ACIS

• ACIS DOSE registered-photon-map

  We updated ACIS cumulative dose map from this month. The steps we took to compute a new 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 Jul 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.

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

  • MAR registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX      MEAN           RMS               MIN   MAX
    ACIS_mar05 6004901    10.334        15.408             0.0   707.0
    
     I2 node 0  262654  8.218969        6.004786           0.0   223.0
     I2 node 1  262654  9.847503        11.532622          0.0   376.0
     I2 node 2  262654  11.598963       17.498758          0.0   542.0
     I2 node 3  262654  13.420694       23.486225          0.0   707.0
    
     I3 node 0  262654  18.180686       26.964422          0.0   703.0
     I3 node 1  262654  14.067347       19.718800          0.0   595.0
     I3 node 2  262654  11.051581       12.981074          0.0   427.0
     I3 node 3  262654  8.813439        6.442930           0.0   252.0
    
     S2 node 0  262397  13.334070       4.119779           0.0   107.0
     S2 node 1  262397  17.535982       33.172406          0.0   702.0
     S2 node 2  262397  17.558532       6.623921           0.0    89.0
     S2 node 3  262397  14.628174       4.800505           0.0   328.0
    
     S3 node 0  262397  12.678346       14.394226          0.0   240.0
     S3 node 1  262397  20.808367       35.943233          0.0   317.0
     S3 node 2  262397  15.360164       6.652289           0.0   306.0
     S3 node 3  262397  16.473264       8.066246           0.0    53.0
    
    
    

  • July 1999 - March 2005 registered-photon-map in fits
    

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
     ACIS_total 6004901   756.316       1118.562           0.0  436896.0
    
     I2 node 0  262654  439.844320      299.602362        91.0  11822.0
     I2 node 1  262654  520.538278      635.687483       331.0  20562.0
     I2 node 2  262654  597.768673      985.497220       385.0  28718.0
     I2 node 3  262654  653.136004      1307.712703        0.0  35160.0
    
     I3 node 0  262654  713.276154      1326.528027      348.0  35234.0
     I3 node 1  262654  643.686428      991.538912       402.0  27901.0
     I3 node 2  262654  543.450037      642.268819       146.0  20078.0
     I3 node 3  262654  437.846482      285.729297         0.0  11245.0
    
     S2 node 0  262397  824.093522      114.323518       355.0  4059.0
     S2 node 1  262397  1045.122974     2304.963779      356.0  43689.0
     S2 node 2  262397  984.471960      203.090760       502.0  7503.0
     S2 node 3  262397  962.846100      200.815825         0.0  3718.0
    
     S3 node 0  262397  1826.824590     1245.971444      592.0  10583.0
     S3 node 1  262397  2967.237190     1755.901765        0.0  11595.0
     S3 node 2  262397  1955.551447     712.041492       500.0  4588.0
     S3 node 3  262397  1372.001936     306.000160         0.0  6501.0
    
    
    

  • MAR 2005 dose PNG image
    
  • MAR I3 dose PNG image
    
  • MAR S3 dose PNG image
    
  • TOTAL JUL 1999 - MAR 2005 dose PNG image
    
  • TOTAL I3 dose PNG image
    
  • TOTAL S3 dose PNG image
    
  
  
• Integrated Exposure Maps of Last 12 Months
  

  Dec 2004	Sep 2004	Jun 2004	Mar 2004

  
  
  
• The Mean Detrended CTI

  We report CTIs with a refined data definition. CTIs were computed for the temperature dependency corrected data. Please see new 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: -117.20      std dev: 2.34
                 mean width:    0.58 days std dev: 0.42 
  

  
  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.
  

• 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)	Hight(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

  
  
  
  
  
  
• 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:
  • EVTSENT - number of events sent in data record
  • DROP_AMP - number of discarded events due to corrected amplitude
  • DROP_POS - number of discarded events due to CCD position
  • DROP_GRD - number of discarded events due to grade code
  • THR_PIX - number of pixels above respective threshold level
  • BERR_SUM - number of pixel bias errors so far in science run
  
  Note the half-life janay of the CTI source is clearly evidenced in the steady janline of EVTSENT.
  CCD7 CTI Observations
  
  
  CCD7 Science Observations
  
  
  

HRC

DOSE of central 4K pore-pairs


From this month, we trend 10th brightest data points instead of the maximum. This makes the maximum trend values to be about 20% lower than the previous months.




• MAR HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  
  HRCI_03_2005.fits           NO DATA
  

• SEP 1999 - MAR 2005 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_03_2005.fits  16777216  1.8372    3.7629      0.0       282.0
  

  
  
• MAR HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_03_2005.fits          16777216  0.1146    0.3660      0.0       14.0
  

  
  
• SEP 1999 - MAR 2005 HRC-S dose fits image

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_02_2005.fits  16777216  6.0302    13.7722      0.0      1502.0
  

  
  
• MAR HRC-I dose PNG image
  
• SEP 1999 - MAR 2005 HRC-I dose PNG image
  
• MAR HRC-S dose PNG image
  
• SEP 1999 - MAR 2005 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.

  HRC I

  
  
  

  HRC S

  

Integrated Exposure Maps of Last 12 Months: HRCI

Dec 2004	Sep 2004	Jun 2004	Mar 2004

Integrated Exposure Maps of Last 12 Months: HRCS

Dec 2004	Sep 2004	Jun 2004	Mar 2004

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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.
  
  
  

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PCAD

ACA Trending
Gyro Bias Drift

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Radiation Zone Timing

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).



March 2005 Timing Plots       Entire Mission Timing Plots

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Quarterly Trends

• HRMA Struts

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HSTRTGRD1	-2.663e+00	5.660e-02	-4.453e-02	-1.395e+01	K	RT25-RT26: HRMA STRUTS
  HSTRTGRD5	2.899e+00	7.247e-02	6.306e-02	1.627e+01	K	RT29-RT30: HRMA STRUTS

• OBA Cone

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HCONEGRD39	2.216e+00	2.368e-02	1.912e-01	5.911e+00	K	RT50-RT51: OBA Cone Panel

• Forward Buldhead

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HFRDBGRD10	-3.282e+00	8.493e-02	-1.787e-01	-2.684e+01	K	RT707-RT708: OBA Forward Bulkhead

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  Spacecraft Motions

  

  Reaction Wheel Rotations

  
  
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  Previous Months

  Year	Month
  1999							Jul	Aug	Sep	Oct	Nov	Dec
  2000	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  2001	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  2002	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  2003	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  2004	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
  2005	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec

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