- M&TA MONTHLY REPORT -

1. Configuration
2. ACIS
   1. Dose
   2. CTI
   3. Focal Plane Temperature
   4. Background
   5. Corner Pixels
   6. Bias Plots
3. HRC - Dose
4. Gratings - Focus
5. PCAD
   1. ACA Trending
   2. Science Instrument Positional Change Monitoring
6. Radiation Zone Timing
7. Quarterly Trends
8. Spacecraft Motions

Configuration/Radiation Overview for August 2006

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.

  • AUG registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_aug06 6004901      13.9390        20.475           0.0    854.0
    
     I2 node 0  262654      11.013302       4.020786        0.0      67.0
     I2 node 1  262654      11.680284       4.485282        0.0     378.0
     I2 node 2  262654      11.588902       4.171487        0.0     110.0
     I2 node 3  262654      11.439790       4.433214        0.0      65.0
    
     I3 node 0  262654      11.806982       5.334141        0.0     124.0
     I3 node 1  262654      12.643921       11.053031       0.0     240.0
     I3 node 2  262654      11.066654       3.957487        0.0      57.0
     I3 node 3  262654      11.062794       4.050853        0.0     206.0
    
     I2 node 0  262654      17.589920       4.986556        0.0      95.0
     I2 node 1  262654      19.727077       7.014971        1.0     125.0
     I2 node 2  262654      22.712140       8.199074        2.0     124.0
     I2 node 3  262654      21.620385       7.374058        3.0     398.0
    
     I3 node 0  262654      26.363423       23.302626       2.0     240.0
     I3 node 1  262654      39.532633       32.813651       0.0     274.0
     I3 node 2  262654      30.273307       25.450552       3.0     263.0
     I3 node 3  262654      23.713850       9.884598        0.0      65.0
    
    

  • Jul 1999 - Aug 2006 registered-photon-map in fits
    

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901   924.243       1298.531           0.0   44493.0
    
     I2 node 0  262654      651.186234      113.658627      0.0     2585.0
     I2 node 1  262654      686.138680      155.223861      0.0     5658.0
     I2 node 2  262654      690.429661      122.951509      0.0     2314.0
     I2 node 3  262654      689.694747      156.136860      0.0     3236.0
    
     I3 node 0  262654      741.242455      180.605215      0.0     4713.0
     I3 node 1  262654      766.394104      513.279901      0.0     13825.0
     I3 node 2  262654      685.295782      112.659232      0.0     2690.0
     I3 node 3  262654      677.892250      122.664017      0.0     12536.0
    
     I2 node 0  262654      1058.830093     131.995403      493.0   12372.0
     I2 node 1  262654      1123.023273     227.045285      522.0   5489.0
     I2 node 2  262654      1280.250000     262.245732      710.0   8857.0
     I2 node 3  262654      1248.762964     213.736189      717.0   9721.0
    
     I3 node 0  262654      2084.259501     1213.713548     767.0   10368.0
     I3 node 1  262654      3257.877210     1742.457388     0.0     11381.0
     I3 node 2  262654      2264.457675     759.015992      639.0   4821.0
     I3 node 3  262654      1646.760578     292.550992      801.0   7025.0
    
    

  • AUG 2006 dose PNG image
    
  • AUG I3 dose PNG image
    
  • AUG S3 dose PNG image
    
  • TOTAL JUL 1999 - AUG 2006 dose PNG image
    
  • TOTAL I3 dose PNG image
    
  • TOTAL S3 dose PNG image
    
  
  
• Integrated Exposure Maps of Last 12 Months
  

  May 2006	Feb 2006	Nov 2005	Aug 2005

  
  
  
• 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 between Sept and Oct was re-calibrated, and the data points are corrected accordingly.

  
  
  
• Focal Plane Temperature

    
         The Mean (max) FPT: -117.28      std dev: 1.75 
                 mean width:    0.84 days std dev: 0.68 
  

  
  
  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.

  

• 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

  
  
  
  
  
  
  
  
  

HRC

DOSE of central 4K pore-pairs



• JUL HRC-I dose fits image
  
  NO DATA FOR THIS MONTH
  
  
• SEP 1999 - JUL 2006 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_07_2006.fits  16777216  2.130     3.257       0.0       286.0
  

  
  
• JUL HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_07_2006.fits          16777216  0.086     0.372       0.0       21.0
  

  
  
• SEP 1999 - JUL 2006 HRC-S dose fits image

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_07_2006.fits  16777216  7.410     15.077       0.0      1524.0
  

  
  
• JUL HRC-I dose PNG image
  
• SEP 1999 - JUL 2006 HRC-I dose PNG image
  
• JUL HRC-S dose PNG image
  
• SEP 1999 - JUL 2006 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

May 2006	Feb 2006	Nov 2005	Aug 2005

Integrated Exposure Maps of Last 12 Months: HRCS

May 2006	Feb 2006	Nov 2005	Aug 2005

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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 - Entire Period
ACA Trending - Aug 2006





Gyro Bias Drift



Science Instrument Positional Change Monitoring

ACIS-S and HRC Celestial Location Monitoring
The following plots are the difference between coordinates obtained from Chandra observations and those obtained from existing catalogs vs time in day of mission. The following steps are taken to generate these plots

* all observations with grating are selected
* even if the observation is not grating one, if it is a known point source, it is added to the list.
* observed ra, dec, target ra, dec, nominal ra, dec and a ratio of a target elliptical to psf (psfratio ) are extracted from src fits files.
* the observations with psfratio smaller than 4 are selected
* the differences between observed coordinates and targeted coordinates (if not available nominal coordinates) are computed
* if the differences are larger than 6 arcsec, the points are dropped




The large dispersion around DOM ~ 2400 (Dec 2005) are all due to none grating Capella observations. Many observations are off-axis observations (e.g., obsid 6558).

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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).



Aug 2006 Timing Plots       Entire Mission Timing Plots

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Quarterly Trends

• ACIS Thermal

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  1DEAMZT	282.87	1.98	-3.096e+00	1.353e+02	K	DEA -Z PANEL TEMP
  1DPAMYT	285.26	2.46	-4.157e+00	1.745e+02	K	DPA -Y PANEL TEMP
  1DPAMZT	288.41	2.12	-3.298e+00	1.572e+02	K	DPA -Z PANEL TEMP

• Ephin Temperature and Electronics

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HKFBIASLEAKI	0.56	0.52	-1.185e+00	-1.072e+01	uA	EPHIN HOUSEKEEPING F-BIAS: LEAKAGE CURRENT (5EHSE900)
  HKP27I	6.81	0.68	1.044e+00	-1.761e+00	AMP	HK 27 Volts Rail - Current
  HKP27V	21.27	5.96	-1.353e+01	-1.263e+02	V	HK 27 Volts Rail - Voltage

• OBA Cone Gradient

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HCONEGRD39	2.225e+00	2.527e-02	2.425e-01	1.976e+00	K	RT50-RT51: OBA Cone Panel

• TFTE Gradient

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HTFTEGRD2	-2.348e-02	4.791e-03	1.596e-02	4.914e-01	K	RT59-RT60: TFTE Forward Cylinder
  HTFTEGRD3	-1.352e-01	7.704e-03	-4.248e-02	1.123e+00	K	RT60-RT58: TFTE Forward Cylinder

• SIM Temperature

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  BOXTEMP	289.74	1.80	2.165e+00	-9.285e+01	K	SEA box temperature
  FAMTRTEMP	280.73	2.44	2.986e+00	-1.446e+02	K	FA motor temperature
  PSUTEMP	318.61	1.51	2.508e+00	-9.111e+01	(3FAPSAT)	SEA power supply temperature

• Spacecraft Temperature

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  TSAMYT	317.39	0.63	-4.384e+00	7.911e+01	K	-Y WING SOLAR ARRAY TEMP
  TSAPYT	316.76	0.50	-4.224e+00	7.216e+01	K	+Y WING SOLAR ARRAY TEMP

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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
2006	Jan	Feb	Mar	Apr	May	Jun	Jul

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