- M&TA MONTHLY REPORT -

1. Configuration
2. ACIS
   1. Dose
   2. CTI
   3. Focal Plane Temperature
   4. Background
3. HRC - Dose
4. Gratings
   1. Focus
   2. Resolving Power, E/dE
5. PCAD
   1. ACA Trending
   2. Gyro bias drift
6. Radiation Zone Timing
7. Quarterly Trends
8. Spacecraft Motions

Configuration/Radiation Overview for April 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.

  • APRIL registered-photon-map in fits
    

    Statistics:
    # IMAGE     NPIX        MEAN           RMS               MIN   MAX
    ACIS_apr06 6004901      10.764         17.588            0.0   846.0
    
     I2 node 0  262654      10.079323       3.818178        0.0     56.0
     I2 node 1  262654      10.613932       4.214370        0.0     335.0
     I2 node 2  262654      10.482430       3.850981        0.0     67.0
     I2 node 3  262654      10.361433       4.129934        0.0     60.0
    
     I3 node 0  262654      10.089584       3.835100        0.0     50.0
     I3 node 1  262654      10.714630       9.407903        0.0     270.0
     I3 node 2  262654      9.699943        3.610534        0.0     62.0
     I3 node 3  262654      9.702515        3.727548        0.0     165.0
    
     S2 node 0  262654      13.670734       4.528894        0.0     361.0
     S2 node 1  262654      13.826082       5.184523        0.0     86.0
     S2 node 2  262654      14.398235       4.774225        0.0     115.0
     S2 node 3  262654      13.832392       4.355547        0.0     357.0
    
     S3 node 0  262654      15.565966       6.213949        0.0     142.0
     S3 node 1  262654      33.400023       38.641797       0.0     289.0
     S3 node 2  262654      24.620362       16.211296       1.0     130.0
     S3 node 3  262654      15.169024       4.302921        0.0     65.0
    

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

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
    ACIS_total  6004901   872.674       1231.998           0.0   51518.0
    
     I2 node 0  262654      611.843945 	106.176126 	0.0 	2361.0
     I2 node 1  262654      644.348331 	145.676736 	0.0 	4260.0
     I2 node 2  262654      648.631287 	115.306750 	0.0 	2094.0
     I2 node 3  262654      648.792682 	146.768062 	0.0 	3023.0
    
     I3 node 0  262654      700.659308 	171.833859 	0.0 	3353.0
     I3 node 1  262654      723.367611 	477.366628 	0.0 	13019.0
     I3 node 2  262654      646.499345 	105.860851 	0.0 	2494.0
     I3 node 3  262654      639.063847 	115.035356 	0.0 	11767.0
    
     S2 node 0  262654      997.026233 	122.359907 	460.0 	3376.0
     S2 node 1  262654      1055.558777 	212.018379 	487.0 	5101.0
     S2 node 2  262654      1200.853577 	244.652446 	648.0 	8493.0
     S2 node 3  262654      1169.945188 	197.571534 	646.0 	7568.0
    
     S3 node 0  262654      1964.012489 	1152.874250 	695.0 	10294.0
     S3 node 1  262654      3103.024066 	1699.063777 	0.0 	11278.0
     S3 node 2  262654      2146.090575 	721.511733 	599.0 	4747.0
     S3 node 3  262654      1557.671156 	271.355825 	732.0 	3735.0
    
    

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

  Jan 2006	Oct 2005	Jul 2005	Apr 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: -114.94      std dev: 2.29
                 mean width:    0.49 days std dev: 0.28 
  

  
  
  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


From this month, we trend 10th brightest data points instead of the maximum. This makes the maximum trend values to be about 20% lower than the previous months.




• APR HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  
  HRCI_04_2006.fits          N/A
  

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

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_03_2006.fits  16777216  2.1015    3.2454      0.0       286.0
  

  
  
• APR HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_04_2006.fits          16777216  0.0040    0.0631      0.0       2.0
  

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

          IMAGE                NPIX     MEAN      STDDEV      MIN      MAX
  HRCS_08_1999_04_2006.fits  16777216  7.2275    14.8459      0.0      1519.0
  

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

Integrated Exposure Maps of Last 12 Months: HRCI

Jan 2006	Oct 2005	Jul 2005	Apr 2005

Integrated Exposure Maps of Last 12 Months: HRCS

Jan 2006	Oct 2005	Jul 2005	Apr 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.
  
  
  

• 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 2005-2006   orange

  

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PCAD

ACA Trending - Entire Period
ACA Trending - Apr 2006





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).



Apr 2006 Timing Plots       Entire Mission Timing Plots

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Quarterly Trends

• EPHIN Temperatures and Electronics

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  HKP27I	7.15	0.53	-0.65	10.18	AMP	HK 27 Volts Rail - Current
  HKP27V	17.45	5.36	14.34	25.87	V	HK 27 Volts Rail - Voltage
  TEIO	311.57	16.39	-13.40	223.97	K	EPHIN ELECTRONICS HOUSING TEMP
  TEPHIN	309.08	4.11	-8.40	57.30	K	EPHIN SENSOR HOUSING TEMP

  
  
• HRC Electronics

  HRC not in use Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  2DETART	255.01	0.11	0.16	0.72		2DETART
  2DETBRT	6.348e+03	4.500e+02	-1710.12	39746.04		2DETBRT
  CBHUAST	223.53	6.860e+01	200.34	5983.91		CBHUAST
  CBHVAST	181.60	7.987e+01	357.96	-5154.88		CBHVAST
  CBLUAST	12.00	26.16	-76.27	-2281.89		CBLUAST
  CBLVAST	18.18	29.18	185.36	-3675.15		CBLVAST
  HVPSSTAT	0.65	0.48	-2.04	-22.36		HVPSSTAT
  IMBPAST	18.99	26.19	118.60	2703.32		IMBPAST
  IMHBLV	119.27	10.74	-48.99	-1260.94	(2IMHBLV)	Imaging bot and top MCP HV monitor
  IMHVLV	117.13	13.64	-61.61	-1455.40	(2IMHVLV)	Imaging bot MCP HV monitor
  IMTPAST	15.13	20.99	95.87	2371.51		IMTPAST
  S2HVLV	101.74	21.73	4.94	-1538.47	(2S2HVLV)	Shield PMT 2 HV monitor
  S2HVST	4.59	3.95	-0.88	280.56		S2HVST
  SPBPAST	37.64	29.56	-117.20	-1479.27		SPBPAST
  SPHBLV	111.38	12.68	48.62	686.53	(2SPHBLV)	Spect bot and top MCP HV monitor
  SPHVLV	107.16	15.59	61.83	785.14	(2SPHVLV)	Spec bot MCP HV monitor
  SPTPAST	30.44	24.60	-94.61	-1302.20		SPTPAST

  
  
• PCAD Temperatures and Electronics

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  AIRU2BT	309.39	0.16	0.49	1.58	K	IRU-2 BASE TEMP
  AIRU2G1I	102.93	0.31	2.32	10.73	MAMP	IRU-2 GYRO #1 CURRENT
  AIRU2G2I	98.92	0.55	-1.21	13.07	MAMP	IRU-2 GYRO #2 CURRENT

  
  
• SIM Actuator Use

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  PWMLEVEL	0.31	0.25	0.03	6.36	(3MRMMXMV)	maximum motor volrtage PWM level most recent move
  TSCEDGE	72.87	10.52	-0.35	25.30	-	TSC Tab Edge Detection Flags
  TSCPOS	43.51	2.104e+02	86.57	11262.67	mm	TSC position (3TSCPOS)
  TSCTABWID	776.87	2.557e+02	-95.05	-783.14	-	Most recently detected TSC tab width

  
  
• OBA Heaters

  Previous Quarter
  MSID	MEAN	RMS	DELTA/YR	DELTA/YR/YR	UNITS	DESCRIPTION
  OOBTHR04	2.887e+02	1.977e-01	-4.352e-01	3.751e+00	K	RT 27: HRMA STRUT
  OOBTHR31	2.868e+02	3.521e+00	-5.275e+00	5.244e+01	K	RT 53: OBA AFT BULKHEAD
  OOBTHR45	2.889e+02	5.528e-01	-1.935e-01	-3.175e+00	K	RT 67: TFTE COVER
  OOBTHR52	2.879e+02	8.583e-01	-1.827e+00	1.369e+01	K	RT 78: S/C STRUT
  OOBTHR57	2.881e+02	3.310e+00	-4.897e+00	4.000e+01	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

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