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:
NOTICE!!!! We have switched to 6 month epochs!!!
The epochs start on the following Days of the Year: 001, 181
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) | 148959 | 148959 | 148959 |
Total Actual Cold Time (secs) | 101959 | 76193 | 70483 |
Delta From Expected (secs) | -46999 | -72765 | -78475 |
% of Exp. Cold Total (secs) | 68.45% | 51.15% | 47.32% |
Stats | TE_007AC | TE_007AE | TE_00B26 |
---|---|---|---|
Total Expected Time (secs) | 248266 | 248266 | 248266 |
Total Actual Time (secs) | 254512 | 256634 | 191160 |
Delta From Expected (secs) | 6246 | 8368 | -57105 |
% of Expected Total (secs) | 102.52% | 103.37% | 77.00% |
SI Mode | Total Number of Obs. | Total Exposure Time (sec) | Average Exposure (sec/obs) | Primary 6 Chip SI Modes | TE_007AC | 32 | 231072.00 | 7221.00 |
---|---|---|---|
TE_007AE | 28 | 208818.00 | 7457.79 |
TE_00B26 | 25 | 161208.00 | 6448.32 | 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 | 7 | 53393.00 | 7627.57 |
TE_00CA8 | 6 | 47817.00 | 7969.50 | 4 Chip SI Modes | TE_00C62 | 0 | 0.00 | 0.00 | Totals: | 98 | 702308.00 | 7166.41 |
ECS Trend Plots and Tables Since 2012
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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