- M&TA MONTHLY REPORT -

1. Configuration
2. ACIS
   1. Dose
   2. CTI
   3. Focal Plane Temperature
   4. Background
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 September 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.

  • SEP registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_sep06 6004901      10.11          14.52            0.0    748.0
    
     I2 node 0  262654      11.071449       3.952794        0.0      68.0
     I2 node 1  262654      11.704272       4.570230        0.0     664.0
     I2 node 2  262654      11.940804       4.285308        0.0      97.0
     I2 node 3  262654      12.696642       5.108628        0.0      66.0
    
     I3 node 0  262654      12.515714       5.785240        0.0     157.0
     I3 node 1  262654      12.108315       10.533375       0.0     286.0
     I3 node 2  262654      10.969165       3.867952        0.0      62.0
     I3 node 3  262654      10.925827       3.974567        0.0     193.0
    
     S2 node 0  262654      12.884995       4.242401        0.0     206.0
     S2 node 1  262654      13.293503       5.327363        0.0      87.0
     S2 node 2  262654      13.538163       4.579324        0.0      87.0
     S2 node 3  262654      13.054586       4.159353        0.0     295.0
    
     S3 node 0  262654      16.619600       4.573270        1.0      57.0
     S3 node 1  262654      18.044297       5.284352        0.0      77.0
     S3 node 2  262654      17.882812       4.694499        0.0     158.0
     S3 node 3  262654      16.564935       4.406212        1.0     150.0
    
    

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

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901   934.36        1310.45            0.0   55150.0
    
     I2 node 0  262654      662.257683      115.616479      0.0     2653.0
     I2 node 1  262654      697.842952      157.895100      0.0     6322.0
     I2 node 2  262654      702.370464      125.275459      0.0     2336.0
     I2 node 3  262654      702.391388      159.401976      0.0     3284.0
    
     I3 node 0  262654      753.758169      184.199544      0.0     4755.0
     I3 node 1  262654      778.502419      523.078855      0.0     14111.0
     I3 node 2  262654      696.264947      114.473109      0.0     2752.0
     I3 node 3  262654      688.818077      124.728246      0.0     12729.0
    
     S2 node 0  262654      1071.715089     133.412397      498.0   12395.0
     S2 node 1  262654      1136.316776     229.083522      528.0   5576.0
     S2 node 2  262654      1293.788162     262.615938      715.0   8921.0
     S2 node 3  262654      1261.817549     213.152328      725.0   10016.0
    
     S3 node 0  262654      2100.879102     1213.903642     775.0   10384.0
     S3 node 1  262654      3275.925926     1742.685062     0.0     11393.0
     S3 node 2  262654      2282.340487     758.915897      646.0   4838.0
     S3 node 3  262654      1663.327050     292.231950      811.0   7056.0
    
    

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

  Jun 2006	Mar 2006	Dec 2005	Sep 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

    
         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



• SEP HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_09_2006.fits          16777216  0.027     0.173       0.0       11.0
  

  
  
• SEP 1999 - SEP 2006 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_09_2006.fits  16777216  2.157     3.274       0.0       288.0
  

  
  
• SEP HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_09_2006.fits          16777216  0.094     0.324       0.0       10.0
  

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

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_09_2006.fits  16777216  7.504     15.140       0.0      1526.0
  

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

Jun 2006	Mar 2006	Dec 2005	Sep 2005

Integrated Exposure Maps of Last 12 Months: HRCS

Jun 2006	Mar 2006	Dec 2005	Sep 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 - Sep 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).



Sep 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
  1CRAT	146.13	1.20	-3.525e+00	1.600e+01	K	COLD RADIATOR TEMP. A
  1CRBT	146.89	1.36	-1.311e+00	-1.900e+01	K	COLD RADIATOR TEMP. B
  1DACTBT	258.57	1.62	6.872e+00	8.015e+01	K	DA COLLIMATOR TEMP. B
  1DEAMZT	282.96	1.91	-3.189e+00	-1.023e+01	K	DEA -Z PANEL TEMP
  1DPAMYT	285.15	2.41	-4.675e+00	-8.672e+00	K	DPA -Y PANEL TEMP
  1DPAMZT	288.30	2.07	-4.133e+00	8.632e+00	K	DPA -Z PANEL TEMP
  1OAHAT	244.92	1.11	3.294e+00	6.301e+01	K	OPEN ACTUATOR HOUSING TEMP. A
  1OAHBT	241.48	1.02	2.888e+00	6.598e+01	K	OPEN ACTUATOR HOUSING TEMP. B
  1PDEAAT	308.93	6.53	2.841e+01	1.628e+02	K	PSMC DEA PS A TEMP
  1PDEABT	299.96	6.53	3.111e+01	1.569e+02	K	PSMC DEA PS B TEMP
  1PIN1AT	294.54	5.99	2.909e+01	1.331e+02	K	PSMC TEMP 1A

  
  
• EPHIN temperatures and voltages

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HKP27I	7.21	0.50	1.083e+00	-3.820e-01	AMP	HK 27 Volts Rail - Current
  HKP27V	16.51	5.02	-1.400e+01	1.282e+02	V	HK 27 Volts Rail - Voltage
  HKP6I	140.83	5.07	-1.077e+01	8.515e+01	AMP	HK 6 Volts Rail - Current
  HKP6V	5.80	2.007e-02	3.314e-02	-5.413e-01	V	HK 6 Volts Rail - Voltage
  TEIO	312.89	15.15	2.068e+01	9.471e+01	K	EPHIN ELECTRONICS HOUSING TEMP
  TEPHIN	309.66	4.02	1.058e+01	5.311e+00	K	EPHIN SENSOR HOUSING TEMP

  
  
• OBA Heaters

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  OOBTHR04	288.73	0.21	7.517e-01	-1.262e-01	K	RT 27: HRMA STRUT
  OOBTHR05	289.08	0.22	7.148e-01	-3.601e-01	K	RT 28: HRMA STRUT
  OOBTHR31	286.54	3.48	1.016e+01	1.537e+02	K	RT 53: OBA AFT BULKHEAD
  OOBTHR45	289.06	0.59	3.617e-01	-9.274e+00	K	RT 67: TFTE COVER
  OOBTHR52	287.96	0.86	2.711e+00	9.726e+00	K	RT 78: S/C STRUT
  OOBTHR57	287.88	3.28	9.577e+00	1.036e+02	K	RT 150: OBA CONE

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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	Aug

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