ECS Measurement SI Mode Trends



Statistics Run Date: 2017Sep11

  1. Introduction
  2. Rolling Monthly
  3. Since Start of Current Epoch
  4. Since Mid 2012
  5. Important Notes

I. Intro

This web page will help you track ECS measurement performance with regard to
total time on each of the three SI modes as well as the amount of the total time that
was cold (i.e. temperatures <= -118.7 degress C).


The present targets for the Total and Cold times are:

    Total time per SI Mode per measurement: 7600.0 seconds
    Fraction of total time the measurement should be cold: 60.0%
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II. Rolling Monthly

Total ECS Time:

ECS Trending Table: Total Time
Stats TE_007AC TE_007AE TE_00B26
Total Expected Time (secs) 53200 53200 68400
Total Actual Time (secs) 44362 44851 86616
Delta From Expected (secs) -8838.00 -8349.00 18216.23
% of Expected Total (secs) 83.39% 84.31% 126.63%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 31920.0 31920.0 41040.0
Total Actual Cold Time (secs) 25190 11157 27298
Delta From Expected (secs) -6729.09 -20762.11 -13741.17
% of Exp. Cold Total (secs) 78.92% 34.96% 66.52%


ECS Trending Table: SI Mode Stats
SI Mode Total Number of Obs. Total Exposure Time (sec) Average Exposure (sec/obs)
Primary 6 Chip SI Modes
TE_007AC 7 44362.00 6337.43
TE_007AE 6 38758.00 6459.67
TE_00B26 7 44194.00 6313.43
Old 6 Chip SI Modes
TE_00216 0 0.00 0.00
TE_0021C 0 0.00 0.00
TE_008EA 0 0.00 0.00
5 Chip SI Modes
TE_00C60 1 7532.00 7532.00
TE_00CA8 1 6093.00 6093.00
4 Chip SI Modes
TE_00C62 1 34890.23 34890.23


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III. Statistics Since the Start of the Current Epoch

Total ECS Time:

ECS Trending Table: Total Time
Stats TE_007AC TE_007AE TE_00B26
Total Expected Time (secs) 76000 68400 91200
Total Actual Time (secs) 63873 59465 109566
Delta From Expected (secs) -12127.00 -8935.00 18366.23
% of Expected Total (secs) 84.04% 86.94% 120.14%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 45600.0 41040.0 54720.0
Total Actual Cold Time (secs) 39756 25707 31964
Delta From Expected (secs) -5843.58 -15332.49 -22755.89
% of Exp. Cold Total (secs) 87.19% 62.64% 58.41%


ECS Trending Table: SI Mode Stats
SI Mode Total Number of Obs. Total Exposure Time (sec) Average Exposure (sec/obs)
Primary 6 Chip SI Modes
TE_007AC 10 63873.00 6387.30
TE_007AE 8 53372.00 6671.50
TE_00B26 10 67144.00 6714.40
Old 6 Chip SI Modes
TE_00216 0 0.00 0.00
TE_0021C 0 0.00 0.00
TE_008EA 0 0.00 0.00
5 Chip SI Modes
TE_00C60 1 7532.00 7532.00
TE_00CA8 1 6093.00 6093.00
4 Chip SI Modes
TE_00C62 1 34890.23 34890.23


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IV. Statistics Since Mid 2012

Total ECS Time:

ECS Trending Table: Total Time
Stats TE_007AC TE_007AE TE_00B26
Total Expected Time (secs) 3496000 3480800 3442800
Total Actual Time (secs) 3826402 3750649 3820343
Delta From Expected (secs) 330402.52 269849.04 377543.65
% of Expected Total (secs) 109.45% 107.75% 110.97%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 2097600.0 2088480.0 2065680.0
Total Actual Cold Time (secs) 1908682 1880298 1769842
Delta From Expected (secs) -188917.41 -208181.20 -295837.77
% of Exp. Cold Total (secs) 90.99% 90.03% 85.68%


ECS Trending Table: SI Mode Stats
SI Mode Total Number of Obs. Total Exposure Time (sec) Average Exposure (sec/obs)
Primary 6 Chip SI Modes
TE_007AC 458 3773125.52 8238.27
TE_007AE 456 3734839.04 8190.44
TE_00B26 449 3682161.93 8200.81
Old 6 Chip SI Modes
TE_00216 5 478338.25 95667.65
TE_0021C 0 0.00 0.00
TE_008EA 0 0.00 0.00
5 Chip SI Modes
TE_00C60 3 23932.00 7977.33
TE_00CA8 2 15810.00 7905.00
4 Chip SI Modes
TE_00C62 3 167526.73 55842.24


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Important Notes:

A word about the TOTAL Time stats:

    - The Total Expected Time values in the table below is calculated by taking the number of actual observations for each SI Mode and multiplying it by 7600.0.
    - Total Actual Time is the sum of all actual ECS measurement time for each of the three SI Modes.
    - % Expected Total is the fraction of the expected that we actually achieved, or:

         (Total Actual Time / Total Expected Time) * 100.0 A word about the COLD Time stats:

    - The Total Expected Cold Time value in the table below is 60.0% of the Total Expected Time (see Table above).
    - Total Actual Cold Time is the sum of all time during each measurement where the temperature was <= -118.7 degrees C
    - % of Expected Total is the fraction of the Total Expected Time achieved

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