- 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. Gratings
   1. Resolving Power, E/dE
6. SIM
   1. SIM Twist
   2. SIM Motor Temperature
7. PCAD
   1. ACA Trending
   2. Gyro bias drift
8. Radiation Zone Timing
9. Quarterly Trends
10. Spacecraft Motions

Configuration/Radiation Overview for Sep 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.

  • SEP registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_sep07 6004901      9.1137         14.132           0.0     900.0
    
     I2 node 0  262654      8.476582        3.365336        0.0      46.0
     I2 node 1  262654      9.019337        3.767465        0.0     296.0
     I2 node 2  262654      8.874031        3.459948        0.0     171.0
     I2 node 3  262654      8.801754        3.670185        0.0      48.0
    
     I3 node 0  262654      8.876422        3.472299        0.0      50.0
     I3 node 1  262654      9.375900        8.739286        0.0     228.0
     I3 node 2  262654      8.627705        3.313011        0.0     106.0
     I3 node 3  262654      8.647007        3.405400        0.0     157.0
    
     I2 node 0  262654      14.073970       4.547610        0.0      80.0
     I2 node 1  262654      14.682158       5.486403        1.0     105.0
     I2 node 2  262654      15.162358       5.083282        0.0     142.0
     I2 node 3  262654      14.731865       4.660573        0.0     465.0
    
     I3 node 0  262654      13.618819       5.047756        1.0     102.0
     I3 node 1  262654      15.992075       6.821586        0.0     148.0
     I3 node 2  262654      14.951980       4.684623        1.0      72.0
     I3 node 3  262654      13.440044       3.912408        1.0      71.0
    
    

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

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901   1064.086      1464.086           0.0   63466.0
    
     I2 node 0  262654      781.388355      138.101097      0.0     3336.0
     I2 node 1  262654      825.664795      189.157127      0.0     10769.0
     I2 node 2  262654      842.343777      162.918805      0.0     3280.0
     I2 node 3  262654      845.784757      203.193942      0.0     3953.0
    
     I3 node 0  262654      894.923506      223.403255      0.0     5196.0
     I3 node 1  262654      925.730633      639.107157      0.0     17110.0
     I3 node 2  262654      818.587631      137.207736      0.0     3368.0
     I3 node 3  262654      808.653954      148.168135      0.0     14994.0
    
     I2 node 0  262654      1246.695443     155.796367      600.0   12699.0
     I2 node 1  262654      1327.666499     270.685194      632.0   6685.0
     I2 node 2  262654      1494.927681     295.062671      839.0   9809.0
     I2 node 3  262654      1447.663983     232.608129      826.0   15449.0
    
     I3 node 0  262654      2330.524154     1256.283812     909.0   10675.0
     I3 node 1  262654      3501.288088     1755.817349     0.0     11624.0
     I3 node 2  262654      2511.698200     777.559127      783.0   5387.0
     I3 node 3  262654      1869.327859     316.782261      962.0   7693.0
    
    

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

  Jun 2007	Mar 2007	Dec 2006	Sep 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: -118.65 C    std dev: 0.51
                 mean width:    0.46 days std dev: 0.31
  

  
  
  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

  
  
  
  
  
  TOP
  

HRC

DOSE of central 4K pore-pairs



• SEP HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_09_2007.fits          16777216   0.025    0.172       0.0       14.0
  

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

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_09_2007.fits  16777216   2.394    3.425       0.0       289.0
  

  
  
• SEP HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_09_2007.fits          16777216   0.148    0.449       0.0       15.0
  

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

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_09_2007.fits  16777216  8.237     15.932       0.0      1433.0
  

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

  Jun 2007	Mar 2007	Dec 2006	Sep 2006

  
  
• Integrated Exposure Maps of Last 12 Months: HRCS
  

  Jun 2007	Mar 2007	Dec 2006	Sep 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.
  
  
  

• Gratings Resolving Power
  We plot E/dE vs. E for fits to detected lines with fwhm_error/fwhm less than 0.15 for the plus and minus arms of HEG, MEG, and LEG. Also shown are conservative (dotted line) and optimistic (dashed line) pre-launch resolving power expectations.
  We have selected only calibration observations of Capella, HR1099, and Sigma Gem.
  See MIT technotes for a parallel analysis.
  

  Plot symbol indicates dispersion arm:	Color indicates observation date:
  Plus side = plus (+) Minus side = cross (x)	1999-2000   green 2001-2002   blue 2003-2004   yellow 2005-2007   orange

  

ACA Trending - Entire Period
ACA Trending - Sep 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).



September 2007 Timing Plots       Entire Mission Timing Plots

SIM Shift and Twist Trend The following plots show trends of SIM shifts (dy and dz) and twist (dtheta). All quantities are directly taken from pcaf*_asol1.fits files. The units are mm for dy and dz, and degree for dtheta. We fit three lines separated before and after (Days of Mission)= 1400 (May 21, 2003), and 2700 (Dec 11, 2006). The unit of slopes are mm per day or degree per day.

The sudden shift around DOM = 1400 and 2700 are due to fid light drift (see a memo by Aldcroft fiducial light drift). On the dtheta plot, two tracks are clearly observed. The track around 0.01 is due to HRC-I, and all others are clustered around -0.002. For more detail, please see SIM Shift and Twist Trend page





SIM Motor Temperature
We track the SIM Translation Drive Motor Temperature using msid 3TRMTRAT. Below are plots for the entire mission showing temperature changes during each translation. Solid lines indicate the start temperatures (blue) and stop temperatures (red) smoothed by a factor of 100. Also plotted is spacecraft pitch angle (pt_suncent_ang) for reference. We explore the relationship between delta T and attitude and delta T vs. move distance.

Quarterly Trends

• ACIS Temperatures

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  1CRAT	146.26	1.29	-4.509e+00	-3.309e+01	K	COLD RADIATOR TEMP. A
  1CRBT	147.08	1.43	-3.816e+00	-5.541e+01	K	COLD RADIATOR TEMP. B
  1DACTBT	258.26	1.57	-2.698e-01	-6.776e+01	K	DA COLLIMATOR TEMP. B
  1DEAMZT	283.49	2.25	-7.587e+00	-4.822e+00	K	DEA -Z PANEL TEMP