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%
II. Statistics Since the Start of the Current Epoch
Cold Time Statistics:
The epochs start on the following Days of the Year: 32, 121, 213, 305
WARNING!!!! Cold Time Statistics SERIOUSLY Out Of Balance!
(See the Rule Set at the bottom of the page)
Stats | TE_007AC | TE_007AE | TE_00B26 |
---|---|---|---|
Total Exp. Cold Time (secs) | 89679 | 89679 | 89679 |
Total Actual Cold Time (secs) | 63099 | 43246 | 61122 |
Delta From Expected (secs) | -26579 | -46432 | -28556 |
% of Exp. Cold Total (secs) | 70.36% | 48.22% | 68.16% |
Stats | TE_007AC | TE_007AE | TE_00B26 |
---|---|---|---|
Total Expected Time (secs) | 149466 | 149466 | 149466 |
Total Actual Time (secs) | 159275 | 121422 | 129835 |
Delta From Expected (secs) | 9809 | -28043 | -19630 |
% of Expected Total (secs) | 106.56% | 81.24% | 86.87% |
SI Mode | Total Number of Obs. | Total Exposure Time (sec) | Average Exposure (sec/obs) | Primary 6 Chip SI Modes | TE_007AC | 22 | 154559.00 | 7025.41 |
---|---|---|---|
TE_007AE | 13 | 87440.00 | 6726.15 |
TE_00B26 | 18 | 120119.00 | 6673.28 | 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 | 2 | 14434.00 | 7217.00 |
TE_00CA8 | 4 | 33982.00 | 8495.50 | 4 Chip SI Modes | TE_00C62 | 0 | 0.00 | 0.00 | Totals: | 59 | 410534.00 | 6958.20 |
All of the TE_00CA8s get counted as TE_007AE So watchout for TE_00B26 over-representation. A word about the Total Time stats:
- The Total Expected Time values for each SI mode in the table is calculated by:
# of ECS runs executed in this epoch so far * 10,000.0 * 0.76 / 3.0
Where:
10,000.0 seconds is the maximum possible time for ECS runs
We exepct only 7600.0 seconds on average - hence multiply by 0.76
We divide by three because we want the time evenly distributed across all three aggregate SI modes
A word about the COLD Time stats:
Cold Time is defiined by focal plane temperatures <= -118.7 degrees C:
The Total Expected Cold Time value is 60.0% of the Total Expected Time (see above).
SI Mode Mapping between 6,5 and 4 chip modes:
The 6 chip SI Modes consist of three distinct modes. But there are only 2, 5 chip SI Modes and only one 4 chip SI mode. To make tracking feasible, the 4 and 5 chip modes were mapped into the 6 chip modes in the following manner:
6 chip 5 chip 4 chip
TE_007AC -> TE_00C60 TE_00C62
TE_00B26 -> TE_00C60 TE_00C62
TE_007AE -> TE_00CA8
Half of the TE_00C60s get counted towards TE_007AC and the other half get counted with the TE_00B26s
Half of the TE_00C62s get counted towards TE_007AC and the other half get counted with the TE_00B26s.
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