- M&TA MONTHLY REPORTS -

1. ACIS
   1. DOSE
   2. CTI
   3. Focal Plane Temperature
   4. Bad Pixels
   5. Background
2. HRC -DOSE
3. GRATINGS - FOCUS
4. PCAD
5. Spacecraft Motions

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

      Statistics:
      #                IMAGE        NPIX      MEAN          RMS              MIN    MAX
        ACIS_jan02_total.fits     6004901    4.598         8.5899            0.0    13144.0
      
       ACIS_jan02_total I2 Node 0  262654  3.876031        2.975968          0.0    100.0
       ACIS_jan02_total I2 Node 1  262654  4.413639        4.835803           0.0   162.0
       ACIS_jan02_total I2 Node 2  262654  4.904764        6.959165           0.0   232.0
       ACIS_jan02_total I2 Node 3  262654  5.384887        9.173664           0.0   265.0
      
       ACIS_jan02_total I3 Node 0  262654  5.462277        8.730965           0.0   261.0
       ACIS_jan02_total I3 Node 1  262654  4.902804        6.614133           0.0   207.0
       ACIS_jan02_total I3 Node 2  262654  4.337642        4.589853           0.0   148.0
       ACIS_jan02_total I3 Node 3  262654  3.686458        2.706013           0.0    83.0
      
       ACIS_jan02_total S2 Node 0  262397  5.648616        2.576728           0.0    41.0
       ACIS_jan02_total S2 Node 1  262397  6.430577        11.359793          0.0   256.0
       ACIS_jan02_total S2 Node 2  262397  5.808085        8.660591           0.0  4211.0
       ACIS_jan02_total S2 Node 3  262397  5.688041        2.645374           0.0    39.0
      
       ACIS_jan02_total S3 Node 0  262397  9.765043        3.216447           0.0    32.0
       ACIS_jan02_total S3 Node 1  262397  10.437490       3.933245           0.0    52.0
       ACIS_jan02_total S3 Node 2  262397  10.038327       3.286107           0.0    62.0
       ACIS_jan02_total S3 Node 3  262397  9.498195        3.325460           0.0   212.0
      
      

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

      
      Statistics:
      #                IMAGE        NPIX      MEAN          RMS              MIN    MAX
       ACIS_total.fits            6004901   266.32         491.36            0.0   416576.0
      
       ACIS_total.fits I2 node 0  262654  161.556409      128.563513        42.0  9336.0
       ACIS_total.fits I2 node 1  262654  192.893651      269.484591       106.0  8717.0
       ACIS_total.fits I2 node 2  262654  220.320818      415.700854       115.0  12190.0
       ACIS_total.fits I2 node 3  262654  238.063098      550.402288         0.0  14975.0
      
       ACIS_total.fits I3 node 0  262654  255.158143      543.408642       136.0  14655.0
       ACIS_total.fits I3 node 1  262654  234.034570      404.977517       130.0  11562.0
       ACIS_total.fits I3 node 2  262654  197.297814      261.967215        49.0  8404.0
       ACIS_total.fits I3 node 3  262654  158.607579      115.428282         0.0  4665.0
      
       ACIS_total.fits S2 node 0  262397  319.197716      336.041980       110.0  51440.0
       ACIS_total.fits S2 node 1  262397  403.442227      1027.264112      123.0  20018.0
       ACIS_total.fits S2 node 2  262397  363.452250      274.274834       147.0  135008.0
       ACIS_total.fits S2 node 3  262397  354.540959      76.170210          0.0   767.0
      
       ACIS_total.fits S3 node 0  262397  710.125257      613.354274       182.0  4596.0
       ACIS_total.fits S3 node 1  262397  852.346342      676.492274         0.0  69435.0
       ACIS_total.fits S3 node 2  262397  582.152692      140.748090       180.0  3230.0
       ACIS_total.fits S3 node 3  262397  514.805642      135.474915         0.0  2990.0
      
      

    • JAN 2002 dose GIF image
      
    • JAN I3 dose GIF image
      
    • JAN S3 dose GIF image
      
    • TOTAL JUL 1999 - JAN 2002 dose GIF image
      
    • TOTAL I3 dose GIF image
      
    • TOTAL S3 dose GIF image
      
    
    
  • The Mean 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	1.220e-8        1.615e-8        1.763e-8        1.492e-8
    CCD6	1.295e-8        1.585e-8        1.482e-8        1.380e-8
    CCD8	1.164e-8        1.255e-8        1.157e-8        1.102e-8
    CCD9	1.222e-8        1.538e-8        1.434e-8        1.053e-8
    
    AVG	1.195e-8
    
    
    Front Side Illuminated I Array
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD0	1.164e-8        1.561e-8        1.565e-8        1.248e-8
    CCD1	1.233e-8        1.407e-8        1.482e-8        1.129e-8
    CCD2	1.235e-8        1.472e-8        1.444e-8        1.095e-8
    CCD3	1.168e-8        1.314e-8        1.347e-8        1.229e-8
    
    AVG	1.198e-8
    Detrended AVG 1.121e-8
    
    Back Side Illuminated S Array
    
    	Node 0		Node 1		Node 2		Node 3
    
    CCD5	5.289e-9      6.234e-9        6.175e-9         3.031e-9
    AVG:	4.885e-9
    
    CCD7	3.227e-9       4.703e-9        4.728e-9        3.094e-9
    AVG	3.987e-9
    
    

  • Focal Plane Temperature

      
           The Mean (max) FPT: -118.07      std dev: 1.01
                   mean width:    0.50      std dev: 0.22 
    
    

    DOY	Focal Temp	S.D.
    2.25	-119.22	0.21
    4.78	-118.74	0.43
    10.18	-117.93	0.65
    13.03	-116.96	0.95
    15.37	-118.09	0.94
    18.18	-118.58	0.52
    20.93	-118.25	0.38
    23.53	-115.35	0.32
    26.26	-117.93	0.37
    28.85	-118.74	0.38
    29.72	-119.06	0.48
    31.49	-117.93	0.40

    
    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 - No new hot pixels observed this month.
    Previously reported:
    Pixel 1022,166 of Quad 4 CCD 5. 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
  
  
• HRC
  DOSE of central 4K pore-pairs
  DOSE is now calculated in RAW coordinates instead of DET.
  • JAN HRC-I dose fits image
    

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_01_2002.fits          16777216  0.05612   0.29513     0.0        20.0
    

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

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCI_08_1999_01_2002.fits  16777216  1.29270   3.28482     0.0        464.0
    

    
    
  • :JAN HRC-S dose fits image
    

            IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
    HRCS_01_2002.fits          16777216  0.23522   0.68339     0.0        34.0
    

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

            IMAGE                NPIX      MEAN     STDDEV      MIN      MAX
    HRCS_08_1999_01_2002.fits  16777216  4.39039   10.75958     0.0      1819.0
    
    

  • JAN HRC-I dose PNG image
    
  • AUG 1999 - JAN 2002 HRC-I dose PNG image
    
  • JAN HRC-S dose PNG image
    
  • AUG 1999 - JAN 2002 HRC-S dose PNG image
    
    
    See Maximum Dose Trends
  
  
• 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.
  
  

  
  
  
  
• PCAD

  ACA Trending
  
  Gyro Bias Drift
  
  

  
  
• Spacecraft Motions

  JAN02

  Motion	Monthly total	Annual Total	Mission Total	Monthly Delta
  		Jan01 thru Jan02	Jul99 thru Jan02	current - previous
  SIM
  SIM FA (STEPS)	6939.00	62356.0	241251.	1798.00
  SIM TSC (STEPS)	4.74701e+06	5.74537e+07	1.42173e+08	31461.0
  SIM TSC (# Moves)	48	478	1272	7
  mean SIM TSC at ACIS-I/sdev/# obs	92903.0/ 0.00000/ 8	92903.0/ 0.00000/ 71	92964.5/ 258.376/ 216	0.00000/ 3
  mean SIM TSC at ACIS-S/sdev/# obs	75481.7/ 580.898/ 17	75405.2/ 482.607/ 165	75431.0/ 461.068/ 437	18.3047/ 2
  mean SIM TSC at HRC-I/sdev/# obs	-50504.5/ 0.577350/ 4	-50504.3/ 0.637022/ 24	-50504.5/ 0.613380/ 81	0.00000/ 2
  mean SIM TSC at HRC-S/sdev/# obs	-99615.9/ 0.301511/ 11	-99621.4/ 46.3686/ 142	-99614.4/ 56.8508/ 349	-0.0859375/ 0
  GRATINGS
  No. HETG insertions	2.00000	35.0000	102.000	0.00000
  No. LETG insertions	4.00000	23.0000	68.0000	1.00000
  mean HETG inserted angles/sdev (A)	6.33750/ 0.00000	6.34791/ 0.00390625	6.70515/ 0.423212	0.00000
  mean HETG inserted angles/sdev (B)	6.33750/ 0.00000	6.33750/ 0.00000	6.47949/ 0.140946	0.00000
  mean LETG inserted angles/sdev (A)	7.08750/ 0.00000	7.15568/ 0.0219156	8.60924/ 6.38555	0.00000
  mean LETG inserted angles/sdev (B)	4.46250/ 0.00000	4.46250/ 0.00000	4.56884/ 0.0545708	0.00000
  mean HETG retracted angles/sdev (A)	79.8375/ 0.00000	79.8375/ 0.00000	80.5102/ 0.683181	0.00000
  mean HETG retracted angles/sdev (B)	80.5875/ 0.00000	80.5982/ 0.00401786	81.1299/ 0.583810	0.00000
  mean LETG retracted angles/sdev (A)	79.0875/ 0.00000	79.2179/ 0.0333498	80.3062/ 2.40269	0.00000
  mean LETG retracted angles/sdev (B)	78.3375/ 0.00000	78.4027/ 0.0211215	79.0709/ 0.744824	0.00000
  Reaction Wheel Rotations		Past 12 Months	Jan00 thru current
  AORWDAY1	6.50341e+07	9.65357e+08	1.83934e+09	-1.73500e+07
  AORWDAY2	7.60810e+07	9.53524e+08	1.80955e+09	-1.27631e+07
  AORWDAY3	5.79744e+07	1.03597e+09	1.96097e+09	-4.40048e+07
  AORWDAY4	7.00865e+07	9.72498e+08	1.85409e+09	-8.72968e+06
  AORWDAY5	7.10277e+07	9.46432e+08	1.79712e+09	-2.13856e+07
  AORWDAY6	6.29508e+07	1.04169e+09	1.96460e+09	-3.53428e+07

  
  

  ---

  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

Back to SOT page