- 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. ACA Trending
   2. Fid light drift
   3. Gyro bias drift
6. Radiation Zone Timing
7. Quarterly Trends
8. Spacecraft Motions

Configuration/Radiation Overview for Dec 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 Sep 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.

  • DEC registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_dec07 6004901      12.6417        21.8462          0.0     876.0
    
     I2 node 0  262654      11.175213       4.168342        0.0      62.0
     I2 node 1  262654      11.769632       4.810436        0.0     626.0
     I2 node 2  262654      11.710331       4.244708        0.0     153.0
     I2 node 3  262654      11.750616       4.626230        0.0      65.0
    
     I3 node 0  262654      11.483728       4.258476        0.0      61.0
     I3 node 1  262654      12.258259       12.191776       0.0     281.0
     I3 node 2  262654      11.142369       4.055214        0.0      94.0
     I3 node 3  262654      11.154667       4.164986        0.0     229.0
    
     S2 node 0  262654      14.061370       4.883097        0.0     580.0
     S2 node 1  262654      14.479326       5.541446        0.0      97.0
     S2 node 2  262654      14.945772       5.122466        0.0     144.0
     S2 node 3  262654      14.379291       4.609726        1.0     516.0
    
     S3 node 0  262654      17.538695       9.521156        1.0     141.0
     S3 node 1  262654      46.413344       37.162242       0.0     293.0
     S3 node 2  262654      40.553864       39.368495       1.0     270.0
     S3 node 3  262654      14.802945       4.301149        1.0      87.0
    
    
    

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

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901   1094.082      1505.062           0.0   65451.0
    
     I2 node 0  262654      812.804901      144.272350      0.0     3523.0
     I2 node 1  262654      858.996501      197.520556      0.0     12388.0
     I2 node 2  262654      875.308697      169.089845      0.0     3456.0
     I2 node 3  262654      878.483135      210.984183      0.0     4100.0
    
     I3 node 0  262654      927.539462      230.272057      0.0     5275.0
     I3 node 1  262654      959.708988      669.699376      0.0     17891.0
     I3 node 2  262654      849.687574      142.761079      0.0     3547.0
     I3 node 3  262654      839.767639      154.357397      0.0     15597.0
    
     S2 node 0  262654      1284.548434     160.901736      620.0   12760.0
     S2 node 1  262654      1366.565799     278.397617      652.0   6912.0
     S2 node 2  262654      1534.990529     298.244513      861.0   9962.0
     S2 node 3  262654      1486.171506     232.771445      847.0   16800.0
    
     S3 node 0  262654      2371.473667     1258.965959     936.0   10732.0
     S3 node 1  262654      3573.425552     1771.510782     0.0     11670.0
     S3 node 2  262654      2577.434340     798.536453      808.0   5609.0
     S3 node 3  262654      1907.574786     318.387091      992.0   7794.0
    
    

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

  Sep 2007	Jun 2007	Mar 2007	Dec 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: -116.07 C    std dev: 3.52
                 mean width:    0.84 days std dev: 0.58
  

  
  
  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

  
  
  
  
  TOP
  

HRC

DOSE of central 4K pore-pairs



• DEC HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_12_2007.fits          16777216   0.024    0.154       0.0       6.0 
  

  
  
• AUG 1999 - DEC 2007 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_12_2007.fits  16777216   2.460    3.473       0.0       289.0
  

  
  
• DEC HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_12_2007.fits          16777216   0.040    0.209       0.0       7.0
  

  
  
• AUG 1999 - DEC 2007 HRC-S dose fits image

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_12_2007.fits  16777216  8.380     16.088       0.0      1535.0
  

  
  
• DEC HRC-I dose PNG image
  
• AUG 1999 - DEC 2007 HRC-I dose PNG image
  
• DEC HRC-S dose PNG image
  
• AUG 1999 - DEC 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
  

  Sep 2007	Jun 2007	Mar 2007	Dec 2006

  
  
• Integrated Exposure Maps of Last 12 Months: HRCS
  

  Mar 2007	Jun 2007	Mar 2007	Dec 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 - Nov 2007


Fid Light Drift

Fid light positions on ACA drift with time. The drift trends of Fid light 2 with ACIS-I and ACIS-S configurations are shown below.

The top panel shows Fid light 2 drift in ACENT I (app. along with -Y axis), and the bottom panel shows that in ACENT J (app. along with Z axis). The unit is a pixel, and one pixel is approximately 0.5 arcsec. The slope listed at the top right corner is the change in a position per year (arcsec/yr). The vertical line on DOM = 1411 (September 1, 2003) indicates a transition date of use of IRU-1 to IRU-2.
See also Tom Aldcroft's updated page: https://cxc.cfa.harvard.edu/mta/ASPECT/fid_drift


Fid 2 (ACIS-I)

Fid 2 (ACIS-S)

Fid 8 (HRC-I)

Fid 12 (HRC-S)


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).



November 2007 Timing Plots       Entire Mission Timing Plots

Quarterly Trends

• DEA/DPA Thermal

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  DEAHK1	16.46	2.92	1.719e+00	2.160e+01	C	DPA Thermistor 1 - BEP PC Board
  DEAHK2	14.71	3.04	1.817e+00	2.501e+01	C	DPA Thermistor 2 - BEP Oscillator
  DEAHK3	16.89	5.87	-6.226e+00	-7.372e+01	C	DPA Thermistor 3 - FEP 0 Mongoose
  DEAHK4	15.28	4.59	-3.370e+00	-3.010e+01	C	DPA Thermistor 4 - FEP 0 PC Board
  DEAHK5	17.21	5.33	-4.839e+00	-5.396e+01	C	DPA Thermistor 5 - FEP 0 ACTEL
  DEAHK6	16.93	4.83	-3.574e+00	-4.336e+01	C	DPA Thermistor 6 - FEP 0 RAM
  DEAHK7	13.66	4.01	-1.336e+00	-1.341e+01	C	DPA Thermistor 7 - FEP 0 Frame Buf.
  DEAHK8	21.39	3.69	-2.566e-01	2.797e+01	C	DPA Thermistor 8 - FEP 1 Mongoose
  DEAHK9	18.30	3.60	-1.619e-02	2.933e+01	C	DPA Thermistor 9 - FEP 1 PC Board
  DEAHK10	21.03	3.68	-1.647e-01	2.265e+01	C	DPA Thermistor 10- FEP 1 ACTEL
  DEAHK11	20.20	3.70	-3.651e-01	2.263e+01	C	DPA Thermistor 11- FEP 1 RAM
  DEAHK12	15.00	3.60	2.883e-01	2.986e+01	C	DPA Thermistor 12- FEP 1 Frame Buf.
  DEAHK16	-119.01	0.87	1.922e+00	-2.155e+01	C	Focal Plane Temp. Board 11

  
  
• EPHIN Temperatures and Voltages

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HKP27I	7.44	0.40	-2.915e+00	-1.255e+01	AMP	HK 27 Volts Rail - Current
  HKP27V	17.66	6.73	7.397e+01	4.875e+02	V	HK 27 Volts Rail - Voltage
  TEIO	311.05	15.59	-3.660e+01	1.992e+02	K	EPHIN ELECTRONICS HOUSING TEMP
  TEPHIN	313.19	3.63	-2.752e+00	-2.475e+01	K	EPHIN SENSOR HOUSING TEMP