- 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 - Focus
5. PCAD
6. Radiation Zone Timing
7. ACIS-S and HRC Celestial Location Monitoring
8. Spacecraft Motions

ACIS

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

    Statistics:
    # IMAGE     NPIX      MEAN          RMS              MIN    MAX
    ACIS_mar03 6004901    10.339         25.633            0.0  33352.0 
    
     I2 node 0  262654  6.225559        4.894030           0.0   179.0
     I2 node 1  262654  7.218082        9.276391           0.0   312.0
     I2 node 2  262654  8.181178        14.106701          0.0   456.0
     I2 node 3  262654  8.948503        18.935318          0.0   550.0
    
     I3 node 0  262654  9.779204        19.173229          0.0   556.0
     I3 node 1  262654  8.918566        14.105662          0.0   428.0
     I3 node 2  262654  7.459624        9.393371           0.0   319.0
     I3 node 3  262654  6.103947        4.914405           0.0   188.0
    
     S2 node 0  262397  15.087665       8.791397           0.0   171.0
     S2 node 1  262397  21.832757       35.719703          0.0   609.0
     S2 node 2  262397  22.244824       24.428112          0.0   517.0
     S2 node 3  262397  15.685313       8.103364           0.0    98.0
    
     S3 node 0  262397  16.545037       11.497709          0.0   204.0
     S3 node 1  262397  17.332317       6.766060           0.0    89.0
     S3 node 2  262397  21.735649       15.120733          1.0   317.0
     S3 node 3  262397  27.594283       31.338165          0.0   350.0
    

  • Jul 1999 - Mar 2003 registered-photon-map in fits
    

    
    Statistics:
     IMAGE        NPIX      MEAN          RMS              MIN    MAX
     ACIS_total 6004901   369.604        661.198           0.0   528946.0
    
     I2 node 0  262654  232.512214      184.099790        63.0  9413.0
     I2 node 1  262654  279.130670      388.841152       158.0  12569.0
     I2 node 2  262654  320.026780      600.382719       186.0  17560.0
     I2 node 3  262654  346.667456      794.010665         0.0  21421.0
    
     I3 node 0  262654  372.663062      792.402598       188.0  21223.0
     I3 node 1  262654  341.505722      592.309591       194.0  16748.0
     I3 node 2  262654  287.219323      382.961829        82.0  12102.0
     I3 node 3  262654  228.855928      168.875914         0.0  6756.0
    
     S2 node 0  262397  445.927804      339.579123       162.0  51563.0
     S2 node 1  262397  569.064925      1434.906949      183.0  27627.0
     S2 node 2  262397  511.271215      325.374653       230.0  157622.0
     S2 node 3  262397  497.130931      109.468582         0.0  1229.0
    
     S3 node 0  262397  919.322740      640.320662       264.0  4828.0
     S3 node 1  262397  1125.121781     735.737810         0.0  69800.0
     S3 node 2  262397  815.149007      189.873274       283.0  27396.0
     S3 node 3  262397  700.287130      164.334793         0.0  4975.0
    

  • MAR 2003 dose PNG image
    
  • MAR I3 dose PNG image
    
  • MAR S3 dose PNG image
    
  • TOTAL JUL 1999 - MAR 2003 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	9.531e-9        1.226e-8        1.273-e8        1.093e-8
  CCD6	1.040e-8        1.154e-8        1.213e-8        1.082e-8
  CCD8	8.618e-9        9.410e-9        8.145e-9        7.964e-9
  CCD9	9.538e-9        1.197e-8        1.147e-8        8.079e-9
  
  AVG	9.426e-9
  
  
  
  Front Side Illuminated I Array
  
  	Node 0		Node 1		Node 2		Node 3
  
  CCD0	8.084e-9        1.076e-8        1.056e-8        8.848e-9
  CCD1	8.630e-9        1.047e-8        1.001e-8        8.036e-9
  CCD2	9.010e-9        1.088e-8        1.070e-8        8.396e-9
  CCD3	8.739e-9        1.043e-8        1.036e-8        9.046e-9
  
  AVG	8.863e-9
  
  Back Side Illuminated S Array (not detrended)
  
  	Node 0		Node 1		Node 2		Node 3
  
  CCD5	3.952e-9       4.308e-9        4.251e-9        2.695e-9
  AVG:	3.598e-9
  
  CCD7	2.434e-9       3.368e-9        3.562e-9        2.350e-9
  AVG	2.985e-9
  
  

• Focal Plane Temperature

    
         The Mean (max) FPT: -116.42      std dev: 2.54
                 mean width:    0.54      std dev: 0.29 
  
  

  
  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
  

  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 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.


• MAR HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_02_2003.fits          16777216  0.02462   0.16376     0.0        5.0
  

• AUG 1999 - MAR 2003 HRC-I dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCI_08_1999_03_2003.fits  16777216  1.52623   3.58476     0.0       465.0
  

  
  
• MAR HRC-S dose fits image

          IMAGE                NPIX      MEAN    STDDEV      MIN       MAX
  HRCS_03_2003.fits          16777216  0.05240   0.24040     0.0       21.0
  

  
  
• AUG 1999 - MAR 2003 HRC-S dose fits image

          IMAGE                NPIX      MEAN     STDDEV      MIN      MAX
  HRCS_08_1999_03_2003.fits  16777216  4.87574   11.53945     0.0      1823.0
  

  
  
• MAR HRC-I dose PNG image
  
• AUG 1999 - MAR 2003 HRC-I dose PNG image
  
• MAR HRC-S dose PNG image
  
• AUG 1999 - MAR 2003 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.

  

• 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.
  
  
  

ACA Trending

Gyro Bias Drift

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).


Mar 2003 Timing Plots       Entire Mission Timing Plots

The following plots are the difference between coordinates obtained from Chandra observations and those obtained from existing catalogs vs time in day of mission. The following steps are taken to generate these plots

* all observations with grating are selected
* observed ra, jan, target ra, jan, nominal ra, jan and a ratio of a target elliptical to psf (psfratio ) are extracted from src fits files.
* the observations with psfratio smaller than 4 are selected
* the differences between observed coordinates and targeted coordinates (if not available nominal coordinates) are computed
* if the differences are larger than 6 arcsec, the points are dropped

MAR03

Motion	Monthly total	Annual Total	Mission Total	Monthly Delta
		Mar02 thru Mar03	Jul99 thru Mar03	current - previous
SIM
SIM FA (STEPS)	50660.0	110016.	361735.	44756.0
SIM TSC (STEPS)	5.95335e+06	6.52463e+07	2.16723e+08	1.42059e+06
SIM TSC (# Moves)	57	634	1999	15
mean SIM TSC at ACIS-I/sdev/# obs	92903.0/ 0.00000/ 17	92903.0/ 0.138662/ 103	92943.4/ 210.287/ 332	0.00000/ 13
mean SIM TSC at ACIS-S/sdev/# obs	75443.5/ 439.833/ 20	75424.3/ 447.382/ 241	75428.9/ 455.297/ 709	-179.867/ 1
mean SIM TSC at HRC-I/sdev/# obs	-50504.0/ 0.00000/ 1	-50504.1/ 0.640312/ 25	-50504.4/ 0.627553/ 112	0.199219/ -4
mean SIM TSC at HRC-S/sdev/# obs	-99615.9/ 0.258199/ 15	-99615.9/ 0.343349/ 155	-99614.9/ 46.2477/ 527	-0.0312500/ 5
GRATINGS
No. HETG insertions	5.00000	92.0000	252.000	5.00000
No. LETG insertions	4.00000	47.0000	142.000	4.00000
mean HETG inserted angles/sdev (A)	12.8625/ 36.3937	11.4948/ 25.4246	11.1402/ 30.2707	***
mean HETG inserted angles/sdev (B)	12.4875/ 34.9172	11.4798/ 26.8114	10.8166/ 30.1116	***
mean LETG inserted angles/sdev (A)	11.1187/ 30.1289	11.7788/ 20.0925	11.7117/ 24.4045	***
mean LETG inserted angles/sdev (B)	13.2750/ 48.1922	12.1969/ 39.0506	10.2310/ 44.4412	***
mean HETG retracted angles/sdev (A)	79.4625/ 0.00000	79.5428/ 0.0242542	80.1958/ 0.639332	0.00000
mean HETG retracted angles/sdev (B)	80.2125/ 0.00000	80.5696/ 0.00653310	80.9362/ 0.450202	0.00000
mean LETG retracted angles/sdev (A)	78.7125/ 0.00000	78.8911/ 0.0368304	79.9434/ 2.15520	0.00000
mean LETG retracted angles/sdev (B)	78.1500/ 0.0703125	78.2661/ 0.0227679	78.8633/ 0.677039	0.187500
Reaction Wheel Rotations		Past 12 Months	Jan00 thru current
AORWDAY1	8.71343e+07	1.07278e+09	3.22767e+09	5.83395e+06
AORWDAY2	7.66049e+07	9.28834e+08	3.02673e+09	8.05329e+06
AORWDAY3	8.32818e+07	1.08348e+09	3.37508e+09	-2.67173e+06
AORWDAY4	8.17244e+07	1.01179e+09	3.16017e+09	-9.93615e+05
AORWDAY5	8.20144e+07	9.48319e+08	3.04556e+09	1.83449e+07
AORWDAY6	7.77791e+07	1.05162e+09	3.34283e+09	-1.19205e+07

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