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

Configuration/Radiation Overview for Apr 2008

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.

  • APR registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS              MIN     MAX
    ACIS_apr08 6004901      10.49          14.50            0.0     910.0
    
     I2 node 0  262654      8.435661        3.428470        0.0      52.0
     I2 node 1  262654      8.928769        3.890073        0.0     415.0
     I2 node 2  262654      8.779701        3.503321        0.0      73.0
     I2 node 3  262654      8.671449        3.670855        0.0      50.0
    
     I3 node 0  262654      9.004344        3.597929        0.0      48.0
     I3 node 1  262654      9.634636        9.130730        0.0     230.0
     I3 node 2  262654      8.710341        3.461258        0.0      68.0
     I3 node 3  262654      8.627426        3.481283        0.0     179.0
    
     S2 node 0  262654      15.580216       5.557354        0.0     430.0
     S2 node 1  262654      16.295997       7.140119        1.0     111.0
     S2 node 2  262654      18.239269       10.354456       1.0     147.0
     S2 node 3  262654      17.256820       9.839916        0.0     500.0
    
     S3 node 0  262654      18.452976       8.579426        2.0     195.0
     S3 node 1  262654      20.271518       8.832794        0.0     134.0
     S3 node 2  262654      20.295244       10.053046       2.0     129.0
     S3 node 3  262654      19.301482       11.284428       0.0     149.0
    
    

  • Jul 1999 - Apr 2008 registered-photon-map in fits
    

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901    1135.488         1557.78         0.0    68571.0
    
     I2 node 0  262654      853.161053      152.041443      0.0     3775.0
     I2 node 1  262654      902.114994      207.977658      0.0     13589.0
     I2 node 2  262654      917.919926      176.991851      0.0     3647.0
     I2 node 3  262654      920.283881      220.602948      0.0     4306.0
    
     I3 node 0  262654      973.258173      239.248610      0.0     5372.0
     I3 node 1  262654      1008.952732     712.247709      0.0     18963.0
     I3 node 2  262654      895.340855      152.262728      0.0     3759.0
     I3 node 3  262654      883.568542      163.035938      0.0     16417.0
    
     S2 node 0  262654      1341.904121     169.193824      650.0   12836.0
     S2 node 1  262654      1425.425171     290.483146      688.0   7279.0
     S2 node 2  262654      1597.665579     304.631738      891.0   10403.0
     S2 node 3  262654      1545.597473     234.355358      882.0   18558.0
    
     S3 node 0  262654      2436.384513     1265.617355     970.0   10812.0
     S3 node 1  262654      3644.954848     1777.109034     0.0     11738.0
     S3 node 2  262654      2646.482663     802.979836      867.0   5884.0
     S3 node 3  262654      1970.639469     322.254625      1031.0  7944.0
    
    
    

  • APR 2008 dose PNG image
    
  • APR I3 dose PNG image
    
  • APR S3 dose PNG image
    
  • TOTAL JUL 1999 - APR 2008 dose PNG image
    
  • TOTAL I3 dose PNG image
    
  • TOTAL S3 dose PNG image
    
  
  
• Integrated Exposure Maps of Last 12 Months
  

  Jan 2008	Oct 2007	Jul 2007	Apr 2007

  
  
  
• 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: -117.24 C    std dev: 2.15
                 mean width:    0.47 days std dev: 0.50
  

  
  
  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

  
  
  
  
  
  

HRC

DOSE of central 4K pore-pairs



• APR HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_04_2008.fits          16777216   0.024    0.158       0.0        6.0 
  

  
  
• AUG 1999 - APR 2008 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_04_2008.fits  16777216   2.573    3.556       0.0       290.0
  

  
  
• MAR HRC-S dose fits image - no observations
  
• AUG 1999 - APR 2008 HRC-S dose fits image

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_04_2008.fits  16777216  8.834     16.991       0.0      1547.0
  

  
  
• APR HRC-I dose PNG image
  
• AUG 1999 - APR 2008 HRC-I dose PNG image
  
• APR HRC-S dose PNG image
  
• AUG 1999 - APR 2008 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
  

  Jan 2008	Oct 2007	Jul 2007	Apr 2007

  
  
• Integrated Exposure Maps of Last 12 Months: HRCS
  

  Jan 2008	Oct 2007	Jul 2007	Apr 2007

  
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• 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)	1999-2001   green 2002-2004   blue 2005-2006   yellow 2007-2008   orange

  

ACA Trending - Entire Period
MAR Trending - Jan 2008




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).



April 2008 Timing Plots       Entire Mission Timing Plots


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SIM

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 (Jan 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.




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Quarterly Trends

• PCAD Gyro Rates

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  AI1AX1X	-3.88	5.305e-03	-1.395e-02	2.266e-02	RATE	IRU-1 AXIS 1X ANALOG
  AI1AX1Y	-3.92	3.389e-03	-1.073e-02	4.291e-02	RATE	IRU-1 AXIS 1Y ANALOG
  AI1AX2X	-3.89	4.011e-03	-9.397e-03	2.262e-02	RATE	IRU-1 AXIS 2X ANALOG
  AI1AX2Y	-3.92	3.473e-03	-4.683e-03	2.904e-03	RATE	IRU-1 AXIS 2Y ANALOG
  AI2AX1X	-2.902e-03	3.982e-03	-4.158e-04	1.515e-03	RATE	IRU-2 AXIS 1X ANALOG
  AI2AX1Y	-1.698e-03	5.736e-03	5.352e-03	1.302e-02	RATE	IRU-2 AXIS 1Y ANALOG
  AI2AX2X	-2.876e-03	5.662e-03	2.912e-03	-3.136e-02	RATE	IRU-2 AXIS 2X ANALOG
  AI2AX2Y	-2.448e-03	1.752e-03	6.847e-04	-3.926e-03	RATE	IRU-2 AXIS 2Y ANALOG
  AOALPANG	-15.08	25.21	1.310e+01	3.637e+02	DEG	FSS ALPHA ANGLE MEAS

• MUPS

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  PCM01T	313.77	1.77	-5.839e-01	1.853e+00	K	PCM TEMP 01
  PCM02T	312.81	1.90	2.236e-01	-9.459e+00	K	PCM TEMP 02
  PCM03T	309.72	3.32	4.160e+00	-1.151e+02	K	PCM TEMP 03
  PCM04T	310.10	3.53	3.417e+00	-8.889e+01	K	PCM TEMP 04
  PFDM101T	288.81	1.78	-3.387e-01	1.346e+01	K	FDM1 TEMP 01
  PFDM102T	287.91	2.73	-9.770e-01	2.413e+01	K	FDM1 TEMP 02
  PFDM201T	289.42	2.15	4.797e-01	-8.754e-01	K	FDM2 TEMP 01
  PFDM202T	288.34	1.41	1.373e-01	-2.535e+00	K	FDM2 TEMP 02
  PFFP01T	289.00	5.08	4.878e+00	-1.834e+02	K	FFP TEMP 1
  PFTANK1T	297.07	1.45	1.938e-01	-4.364e+01	K	FUEL TANK TEMP 01
  PFTANK2T	296.11	0.72	8.920e-01	-5.541e+01	K	FUEL TANK TEMP 02
  PFTANKIP	1.955e+03	4.74	5.742e+00	-1.897e+02	PSIA	FUEL TANK INLET PRESSURE
  PFTANKOP	1.927e+03	5.70	5.613e+00	-3.013e+02	PSIA	FUEL TANK OUTLET PRESSURE
  PHETANKP	629.61	0.000e+00	0.000e+00	0.000e+00	PSIA	HE TANK PRESSURE
  PHETANKT	295.85	3.29	6.126e+00	-1.803e+02	K	HE TANK OUTLET TEMP
  PHOFP1T	290.76	4.87	6.298e-01	2.767e+01	K	HE/OX FILL PANEL TEMP 1
  PLINE01T	288.27	1.76	2.880e-02	-2.352e+01	K	PROP LINE TEMP 01
  PLINE02T	308.04	7.95	1.005e+01	-2.269e+02	K	PROP LINE TEMP 02
  PLINE03T	308.31	9.16	9.163e+00	-3.115e+02	K	PROP LINE TEMP 03
  PLINE04T	293.29	8.07	1.000e+01	-2.291e+02	K	PROP LINE TEMP 04
  PLINE05T	292.75	5.37	7.008e+00	-1.753e+02	K	PROP LINE TEMP 05
  PLINE06T	286.68	3.57	3.073e+00	-7.321e+01	K	PROP LINE TEMP 06
  PLINE07T	291.55	4.26	2.170e+00	-6.512e+01	K	PROP LINE TEMP 07
  PLINE08T	292.00	3.35	-5.611e-03	9.845e+00	K	PROP LINE TEMP 08
  PLINE09T	305.11	4.44	1.889e+00	-6.717e+01	p008	PROP LINE TEMP 09 K
  PLINE10T	303.54	3.10	-8.387e-01	1.905e+01	K	PROP LINE TEMP 10
  PLINE11T	292.81	1.30	2.194e+00	-6.044e+01	K	PROP LINE TEMP 11
  PLINE12T	290.05	1.79	1.994e+00	-2.056e+01	K	PROP LINE TEMP 12
  PLINE13T	286.88	1.70	1.223e+00	-7.046e-01	K	PROP LINE TEMP 13
  PLINE14T	290.26	2.30	-3.942e-01	1.084e+01	K	PROP LINE TEMP 14
  PLINE15T	291.01	2.36	-9.659e-01	4.188e+01	K	PROP LINE TEMP 15
  PLINE16T	297.16	2.76	2.071e+00	-4.957e+01	16	PROP LINE TEMP
  PXDM01T	288.94	2.13	-2.282e-01	3.205e+01	K	ODM TEMP 01
  PXDM02T	292.10	3.03	2.244e-01	3.140e+01	K	ODM TEMP 02
  PXTANK1T	294.47	1.02	5.007e-01	-5.961e+00	K	OX TANK TEMP 01
  PXTANK2T	297.07	1.74	-4.265e-01	4.898e+00	K	OX TANK TEMP 02
  PXTANKIP	1.897e+03	5.93	-5.695e-01	1.510e+02	PSIA	OX TANK INLET PRESSURE
  PXTANKOP	1.912e+03	6.00	-2.052e+00	1.431e+02	PSIA	OX TANK OUTLET PRESSURE




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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	Sep	Oct	Nov	Dec
2007	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	Jan	Feb	Mar

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