- M&TA MONTHLY REPORT -

OUTLINE

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

• Configuration/Radiation Overview for Sep 2002
  

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• ACIS

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

      Statistics:
      # IMAGE     NPIX      MEAN          RMS              MIN    MAX
      ACIS_sep02 6004901    8.775         14.024            0.0   8625.0 
      
       I2 node 0  262654  5.570005        7.444376           0.0  3058.0
       I2 node 1  262654  6.828790        8.558143           0.0   298.0
       I2 node 2  262654  7.710852        12.730696          0.0   375.0
       I2 node 3  262654  8.122564        16.211485          0.0   464.0
      
       I3 node 0  262654  9.761241        19.535801          0.0   547.0
       I3 node 1  262654  9.199951        15.123150          0.0   466.0
       I3 node 2  262654  7.832822        9.850652           0.0   346.0
       I3 node 3  262654  6.188290        4.754566           0.0   189.0
      
       S2 node 0  262397  11.578383       9.978624           0.0  4721.0
       S2 node 1  262397  14.194286       34.369783          0.0   696.0
       S2 node 2  262397  12.259637       5.798850           0.0  2147.0
       S2 node 3  262397  11.573574       3.850599           0.0    33.0
      
       S3 node 0  262397  18.129220       5.386962           1.0   150.0
       S3 node 1  262397  22.318456       13.267715          0.0   423.0
       S3 node 2  262397  18.985350       4.516520           3.0    44.0
       S3 node 3  262397  17.969847       4.815526           0.0   153.0
      
      

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

      
      Statistics:
       IMAGE        NPIX      MEAN          RMS              MIN    MAX
       ACIS_total 6004901   327.886        588.43            0.0   474514.0
      
       I2 node 0  262654  202.147133      160.175920        57.0  9376.0
       I2 node 1  262654  242.732683      337.628076       136.0  10911.0
       I2 node 2  262654  278.169348      521.803027       163.0  15242.0
       I2 node 3  262654  300.687646      688.831855         0.0  18614.0
      
       I3 node 0  262654  323.703625      685.762410       170.0  18338.0
       I3 node 1  262654  297.060524      513.122579       169.0  14537.0
       I3 node 2  262654  249.920340      331.506843        68.0  10603.0
       I3 node 3  262654  199.174073      145.728551         0.0  5860.0
      
       S2 node 0  262397  391.006963      338.145673       134.0  51509.0
       S2 node 1  262397  495.261672      1263.560787      158.0  24361.0
       S2 node 2  262397  443.899618      314.776939       186.0  154694.0
       S2 node 3  262397  435.065999      89.727792          0.0   972.0
      
       S3 node 0  262397  842.750413      623.766667       230.0  4711.0
       S3 node 1  262397  1039.434578     713.492267         0.0  69714.0
       S3 node 2  262397  733.483279      182.973282       242.0  27308.0
       S3 node 3  262397  619.314504      147.606531         0.0  4477.0
      
      

    • SEP 2002 dose PNG image
      
    • SEP I3 dose PNG image
      
    • SEP S3 dose PNG image
      
    • TOTAL JUL 1999 - SEP 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	9.185e-9        1.193e-8        1.287-e8        1.089e-8
    CCD6	1.068e-8        1.253e-8        1.251e-8        1.120e-8
    CCD8	8.875e-9        9.783e-9        8.477e-9        8.157e-9
    CCD9	9.518e-9        1.219e-8        1.167e-8        8.0623-9
    
    AVG	9.924e-9
    
    
    
    Front Side Illuminated I Array
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD0	8.788e-9        1.167e-8        1.136e-8        9.307e-9
    CCD1	8.892e-9        1.090e-8        1.053e-8        8.432e-9
    CCD2	9.448e-9        1.159e-8        1.171e-8        8.380e-9
    CCD3	8.788e-9        1.081e-8        1.069e-8        9.443e-9
    
    AVG	9.237e-9
    
    Back Side Illuminated S Array (not detrended)
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD5	4.784e-9      5.336e-9        5.082e-9         3.230e-9
    AVG:	4.407e-9
    
    CCD7	2.715e-9       4.088e-9        4.131e-9        2.813e-9
    AVG	3.498e-9
    
    

  • Focal Plane Temperature

      
           The Mean (max) FPT: -116.67      std dev: 1.28
                   mean width:    0.49      std dev: 0.13 
    
    

    DOY	Focal Temp	S.D.
    244.80	-119.06	0.82
    245.96	-116.32	0.51
    248.65	-115.51	0.50
    251.27	-114.22	0.40
    253.88	-117.28	0.34
    256.58	-115.67	0.54
    259.20	-117.28	0.48
    261.88	-117.61	0.37
    264.67	-118.09	0.62
    267.14	-115.35	0.36
    269.81	-116.96	0.42
    272.48	-116.64	0.46

    
    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
  

  • ACIS Rejected Events

    
    The average EVTSENT, DROP_AMP, DROP_POS, DROP_GRD, THR_PIX, and maximum BERR_SUM are plotted for each observation. CTI observations are plotted separately from regular science observations. For Clarity, only S3 is shown.
    Notes:
    1. The half-life decay of the CTI source is clearly evidenced in the steady decline of EVTSENT.
    2. The slope of the averaged dropped events and THR_PIX changes around DOM 380. This may be a seasonal effect due to solar activity and changes in background rates. A full explanation and fit method are being determined.

  • CTI Obs
    

    Sci Obs
    CTI Obs
    Sci Obs
    
    

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• HRC

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

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_09_2002.fits          16777216  0.01741   0.157460    0.0       15.0
    

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

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_09_2002.fits  16777216  1.42135   3.45826     0.0       465.0
    

    
    
  • SEP HRC-S dose fits image
    

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_08_2002.fits          16777216  0.01307   0.11500     0.0        3.0
    

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

            IMAGE                NPIX      MEAN     STDDEV      MIN      MAX
    HRCS_08_1999_09_2002.fits  16777216  4.60737   11.13811     0.0      1821.0
    
    

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

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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).
    
    
    Sep 2002 Timing Plots       Entire Mission Timing Plots
    

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  • Spacecraft Motions

    SEP02

    Motion	Monthly total	Annual Total	Mission Total	Monthly Delta
    		Sep01 thru Sep02	Jul99 thru Sep02	current - previous
    SIM
    SIM FA (STEPS)	5782.00	64364.0	281475.	1204.00
    SIM TSC (STEPS)	5.35366e+06	6.13921e+07	1.84821e+08	-230049.
    SIM TSC (# Moves)	54	590	1701	7
    mean SIM TSC at ACIS-I/sdev/# obs	92903.0/ 0.00000/ 7	92903.0/ 0.103142/ 94	92949.7/ 225.964/ 286	0.00000/ 1
    mean SIM TSC at ACIS-S/sdev/# obs	75414.6/ 464.993/ 23	75395.3/ 485.371/ 221	75411.4/ 472.422/ 600	77.0781/ 2
    mean SIM TSC at HRC-I/sdev/# obs	-50503.8/ 0.500000/ 4	-50504.1/ 0.580894/ 29	-50504.4/ 0.628057/ 101	0.250000/ 3
    mean SIM TSC at HRC-S/sdev/# obs	-99615.7/ 0.467099/ 11	-99615.9/ 0.349093/ 142	-99614.8/ 50.2219/ 447	0.0625000/ -3
    GRATINGS
    No. HETG insertions	3.00000	49.0000	145.000	-1.00000
    No. LETG insertions	0.00000	22.0000	81.0000	-1.00000
    mean HETG inserted angles/sdev (A)	6.21250/ 0.0468750	6.31454/ 0.00825096	6.58837/ 0.332138	0.0250001
    mean HETG inserted angles/sdev (B)	5.96250/ 0.00000	6.24566/ 0.0265466	6.40686/ 0.120265	0.00000
    mean LETG inserted angles/sdev (A)	0.00000/ 0.00000	7.08750/ 0.00000	8.35256/ 5.62401	***
    mean LETG inserted angles/sdev (B)	0.00000/ 0.00000	4.46250/ 0.00000	4.55046/ 0.0466581	***
    mean HETG retracted angles/sdev (A)	79.4625/ 0.00000	79.6768/ 0.0351562	80.2565/ 0.643561	0.00000
    mean HETG retracted angles/sdev (B)	80.4625/ 0.0468750	80.5875/ 0.00000	80.9703/ 0.472247	-0.125000
    mean LETG retracted angles/sdev (A)	78.7125/ 0.00000	79.0705/ 0.00639205	80.1060/ 2.22621	0.00000
    mean LETG retracted angles/sdev (B)	77.9625/ 0.00000	78.3375/ 0.00000	78.9532/ 0.697180	0.00000
    Reaction Wheel Rotations		Past 12 Months	Jan00 thru current
    AORWDAY1	8.15030e+07	9.83535e+08	2.67546e+09	-7.09116e+06
    AORWDAY2	8.73462e+07	9.31432e+08	2.57605e+09	7.17325e+06
    AORWDAY3	8.50135e+07	1.02979e+09	2.83080e+09	-1.01050e+07
    AORWDAY4	8.11031e+07	9.34663e+08	2.63985e+09	-5.93983e+06
    AORWDAY5	8.38861e+07	9.51507e+08	2.58518e+09	5.85444e+06
    AORWDAY6	8.61683e+07	1.00940e+09	2.81276e+09	-9.03852e+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	Aug

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