ECS Measurement SI Mode Trends



Statistics Run Date: 2017Sep18

  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) 45600 45600 60800
Total Actual Time (secs) 40041 35819 78880
Delta From Expected (secs) -5559.00 -9781.00 18080.23
% of Expected Total (secs) 87.81% 78.55% 129.74%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 27360.0 27360.0 36480.0
Total Actual Cold Time (secs) 29629 9576 64399
Delta From Expected (secs) 2269.16 -17783.68 27919.99
% of Exp. Cold Total (secs) 108.29% 35.00% 176.54%


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 6 40041.00 6673.50
TE_007AE 5 29726.00 5945.20
TE_00B26 6 36458.00 6076.33
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) 83600 76000 98800
Total Actual Time (secs) 72485 64686 114283
Delta From Expected (secs) -11115.00 -11314.00 15483.23
% of Expected Total (secs) 86.70% 85.11% 115.67%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 50160.0 45600.0 59280.0
Total Actual Cold Time (secs) 44194 25707 73925
Delta From Expected (secs) -5965.33 -19892.49 14645.05
% of Exp. Cold Total (secs) 88.11% 56.38% 124.70%


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 11 72485.00 6589.55
TE_007AE 9 58593.00 6510.33
TE_00B26 11 71861.00 6532.82
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) 3503600 3488400 3450400
Total Actual Time (secs) 3835014 3755870 3825060
Delta From Expected (secs) 331414.52 267470.04 374660.65
% of Expected Total (secs) 109.46% 107.67% 110.86%

Cold ECS Time:

ECS Trending Table: Cold Time
Stats TE_007AC TE_007AE TE_00B26
Total Exp. Cold Time (secs) 2102160.0 2093040.0 2070240.0
Total Actual Cold Time (secs) 1913120 1880298 1811803
Delta From Expected (secs) -189039.16 -212741.20 -258436.83
% of Exp. Cold Total (secs) 91.01% 89.84% 87.52%


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 459 3781737.52 8239.08
TE_007AE 457 3740060.04 8183.94
TE_00B26 450 3686878.93 8193.06
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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