- M&TA MONTHLY REPORT -

OUTLINE

1. ACIS
   1. Dose
   2. CTI
   3. Focal Plane Temperature
   4. Bad Pixels
   5. Background
2. HRC -Dose
3. Gratings
   1. Focus
   2. Resolving Power
4. PCAD
5. Radiation Zone Timing
6. Spacecraft Motions

• Configuration/Radiation Overview for Aug 2002
  

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• ACIS

  • ACIS DOSE registered-photon-map
    • AUG registered-photon-map in fits
      

      Statistics:
      # IMAGE     NPIX      MEAN          RMS              MIN    MAX
      ACIS_aug02 6004901    7.669         18.028            0.0    26298.0
      
       I2 node 0  262654  2.896602        3.263056           0.0   118.0
       I2 node 1  262654  3.626075        6.192134           0.0   215.0
       I2 node 2  262654  4.368698        9.323460           0.0   287.0
       I2 node 3  262654  4.888153        12.249333          0.0   366.0
      
       I3 node 0  262654  7.501317        15.109357          0.0   446.0
       I3 node 1  262654  7.127685        11.370466          0.0   348.0
       I3 node 2  262654  5.791718        7.628613           0.0   256.0
       I3 node 3  262654  4.122355        3.688754           0.0   143.0
      
       S2 node 0  262397  6.761987        2.996480           0.0    54.0
       S2 node 1  262397  9.332031        26.915648          0.0   540.0
       S2 node 2  262397  8.340282        4.013367           0.0  1021.0
       S2 node 3  262397  10.005736       3.849446           0.0    43.0
      
       S3 node 0  262397  24.009360       13.333723          0.0   266.0
       S3 node 1  262397  40.606120       27.778924          0.0   336.0
       S3 node 2  262397  19.601947       51.983208          0.0  26298.0
       S3 node 3  262397  11.061106       4.282070           0.0   222.0
      
      

    • Jul 1999 - Aug 2002 registered-photon-map in fits
      

      
      Statistics:
       IMAGE        NPIX      MEAN          RMS              MIN    MAX
       ACIS_total 6004901   319.11         576.00            0.0   466098.0
      
       I2 node 0  262654  196.577128      156.342943        55.0  9370.0
       I2 node 1  262654  235.903893      329.511818       132.0  10651.0
       I2 node 2  262654  270.458497      509.411946       160.0  14888.0
       I2 node 3  262654  292.565082      672.886014         0.0  18194.0
      
       I3 node 0  262654  313.942384      666.504787       167.0  17831.0
       I3 node 1  262654  287.860573      498.343652       163.0  14132.0
       I3 node 2  262654  242.087518      322.096129        65.0  10310.0
       I3 node 3  262654  192.985784      141.720223         0.0  5707.0
      
       S2 node 0  262397  379.428580      337.726777       133.0  51496.0
       S2 node 1  262397  481.067386      1229.457565      152.0  23742.0
       S2 node 2  262397  431.639981      310.437891       184.0  152547.0
       S2 node 3  262397  423.492426      88.906482          0.0   940.0
      
       S3 node 0  262397  824.621192      623.481272       222.0  4689.0
       S3 node 1  262397  1017.116122     706.694935         0.0  69693.0
       S3 node 2  262397  714.497929      182.269418       230.0  27282.0
       S3 node 3  262397  601.344657      146.214005         0.0  4324.0
      
      

    • AUG 2002 dose PNG image
      
    • AUG I3 dose PNG image
      
    • AUG S3 dose PNG image
      
    • TOTAL JUL 1999 - AUG 2002 dose PNG image
      
    • TOTAL I3 dose PNG image
      
    • TOTAL S3 dose PNG image
      
    
    
  • The Mean Detrended CTI

    Observations with cold radiator temperature deviation larger than 0.5 C
    from the nominal value of -127.92905 C are dropped (after DOM 200).
    
    
    Mean CTI observed when FPT~ -119 C and no testing modes (Squeegy, cuckoo, etc.) (average of 4 nodes per chip).
    CTI's are computed for Mn K alpha, and defined as slope/intercept x10^4 of row # vs ADU.
    Data file here
    

    
    
    CTI Slope (after DOM 200)

    
    CTI slopes were computed for data point after DOM 200 and inside of 1 sigma deviation.
    Using only data point in 1 sigma range, we drop high temperature observations, squeegy
    observations, and other outliers. A independent variable is date, and a dependent 
    variable is CTI.
    
    Note: Unit is cti/day from this month report. 
    
    Front Side Illuminated S Array
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD4	1.134e-8        1.366e-8        1.544-e8        1.315e-8
    CCD6	1.294e-8        1.443e-8        1.480e-8        1.337e-8
    CCD8	1.055e-8        1.193e-8        1.015e-8        9.780e-9
    CCD9	1.120e-8        1.371e-8        1.324e-8        9.235e-9
    
    AVG	1.161e-8
    
    
    Front Side Illuminated I Array
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD0	1.012e-8        1.270e-8        1.285e-8        1.051e-8
    CCD1	1.028e-8        1.221e-8        1.173e-8        9.638e-9
    CCD2	1.074e-8        1.293e-8        1.332e-8        9.652e-9
    CCD3	1.040e-8        1.218e-8        1.222e-8        1.103e-8
    
    AVG	1.058e-8
    
    Back Side Illuminated S Array (not detrended)
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD5	4.615e-9      5.270e-9        4.933e-9         3.115e-9
    AVG:	4.355e-9
    
    CCD7	2.753e-9       4.016e-9        4.113e-9        2.728e-9
    AVG	3.470e-9
    
    

  • Focal Plane Temperature

      
           The Mean (max) FPT: -115.26      std dev: 0.96
                   mean width:    0.49      std dev: 0.10 
    
    

    DOY	Focal Temp	S.D.
    214.22	-115.02	0.48
    216.86	-113.57	0.64
    219.49	-114.38	0.37
    222.13	-114.22	0.51
    224.82	-115.83	0.42
    230.08	-114.70	0.56
    232.73	-116.48	0.55
    235.40	-115.99	0.48
    238.02	-115.83	0.49
    240.71	-116.80	0.28
    243.31	-115.02	0.59

    
    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.
    

  • Bad Pixels
    Many of the S1 and S3 "bad pixels" are not bad at all. The bias frames have a lot of real structure in them and since the hot pixel finder is comparing pixels to a global average across the CCD, the extremes of the bias structure are getting picked up. - Catherine Grant

    Warm pixels consistently showed a bias level more than 5 sigma away the chip's mean level during this period.

    

    Hot Pixels - About five new hot pixels observed this month.
    Previously reported:
    We define a hot pixel as a pixel with the count rate 1000 counts above the average

    Bad Pixel Report Page
    

  • Acis Count Rate Plot
    This monitors the ACIS count Rate vs. EPHIN count Rate.
    No sources are removed. For daily updates see: Ephin/Acis Info
  
  

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• HRC

  DOSE of central 4K pore-pairs
  DOSE is now calculated in RAW coordinates instead of DET.
  • AUG HRC-I dose fits image
    

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_2002.fits          16777216  0.01378   0.118970    0.0        3.0
    

    
    
  • SEP 1999 - AUG 2002 HRC-I dose fits image
    

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_08_2002.fits  16777216  1.40393   3.41675     0.0       465.0
    

    
    
  • AUG HRC-S dose fits image
    

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_08_2002.fits          16777216  0.06948   0.29044     0.0       22.0
    

    
    
  • SEP 1999 - AUG 2002 HRC-S dose fits image
    

            IMAGE                NPIX      MEAN     STDDEV      MIN      MAX
    HRCS_09_1999_08_2002.fits  16777216  4.59430   11.13113     0.0      1820.0
    
    

  • AUG HRC-I dose PNG image
    
  • AUG 1999 - AUG 2002 HRC-I dose PNG image
    
  • AUG HRC-S dose PNG image
    
  • SEP 1999 - AUG 2002 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.

    
  
  

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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 0.1 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.

  Plot symbol indicates dispersion arm:	Color indicates observation date:
  Plus side = plus (+) Minus side = cross (x)	1999   green 2000   blue 2001   yellow 2002   red

  
  
  

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• PCAD

  ACA Trending
  
  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).
  
  
  Aug 2002 Timing Plots       Entire Mission Timing Plots
  

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• Spacecraft Motions

  AUG02

  Motion	Monthly total	Annual Total	Mission Total	Monthly Delta
  		Sep01 thru Aug02	Jul99 thru Aug02	current - previous
  SIM
  SIM FA (STEPS)	4744.00	62810.0	275859.	18.0000
  SIM TSC (STEPS)	5.60099e+06	6.02986e+07	1.79485e+08	8068.00
  SIM TSC (# Moves)	48	571	1648	-15
  mean SIM TSC at ACIS-I/sdev/# obs	92903.0/ 0.00000/ 6	92903.0/ 0.104257/ 92	92950.9/ 228.671/ 279	0.00000/ -3
  mean SIM TSC at ACIS-S/sdev/# obs	75350.6/ 514.562/ 22	75397.0/ 484.721/ 212	75411.7/ 472.784/ 578	142.516/ -4
  mean SIM TSC at HRC-I/sdev/# obs	-50504.0/ 0.00000/ 1	-50504.2/ 0.587040/ 26	-50504.4/ 0.621770/ 97	0.500000/ -1
  mean SIM TSC at HRC-S/sdev/# obs	-99615.8/ 0.425815/ 14	-99615.9/ 0.325781/ 142	-99614.7/ 50.8527/ 436	0.0546875/ 1
  GRATINGS
  No. HETG insertions	4.00000	49.0000	142.000	-5.00000
  No. LETG insertions	1.00000	22.0000	81.0000	-1.00000
  mean HETG inserted angles/sdev (A)	6.18750/ 0.0421875	6.32219/ 0.00562022	6.59631/ 0.335471	-0.150001
  mean HETG inserted angles/sdev (B)	5.96250/ 0.00000	6.54000/ 3.70337	6.41618/ 0.118547	-0.234375
  mean LETG inserted angles/sdev (A)	7.08750/ 0.00000	7.08750/ 0.00000	8.35256/ 5.62401	0.00000
  mean LETG inserted angles/sdev (B)	4.46250/ 0.00000	4.46250/ 0.00000	4.55046/ 0.0466581	0.00000
  mean HETG retracted angles/sdev (A)	79.4625/ 0.00000	79.6997/ 0.0333626	80.2733/ 0.643558	0.00000
  mean HETG retracted angles/sdev (B)	80.5875/ 0.00000	80.5875/ 0.00000	80.9783/ 0.479064	0.0416641
  mean LETG retracted angles/sdev (A)	78.7125/ 0.00000	79.0705/ 0.00639205	80.1060/ 2.22621	-0.187500
  mean LETG retracted angles/sdev (B)	77.9625/ 0.00000	78.3375/ 0.00000	78.9532/ 0.697180	-0.375000
  Reaction Wheel Rotations		Past 12 Months	Jan00 thru current
  AORWDAY1	8.85942e+07	9.79112e+08	2.59396e+09	3.57790e+05
  AORWDAY2	8.01729e+07	9.23226e+08	2.48871e+09	-3.29532e+06
  AORWDAY3	9.51185e+07	1.02393e+09	2.74579e+09	6.10979e+06
  AORWDAY4	8.70430e+07	9.33571e+08	2.55875e+09	-2.20490e+06
  AORWDAY5	7.80317e+07	9.43828e+08	2.50130e+09	-4.42534e+06
  AORWDAY6	9.52068e+07	1.00522e+09	2.72659e+09	5.29080e+06

  
  

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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

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