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%
Total Cold Time on I3: 95929
Total Cold Time on S3: 125020
| Stats | TE_007AC | TE_007AE | TE_00B26 |
|---|---|---|---|
| Total Exp. Cold Time (secs) | 141360 | 141360 | 141360 |
| Total Actual Cold Time (secs) | 17297 | 29091 | 78632 |
| Delta From Expected (secs) | -124062 | -112268 | -62727 |
| % of Exp. Cold Total (secs) | 12.24% | 20.58% | 55.63% |
| Stats | TE_007AC | TE_007AE | TE_00B26 |
|---|---|---|---|
| Total Expected Time (secs) | 235600 | 235600 | 235600 |
| Total Actual Time (secs) | 219119 | 197579 | 370801 |
| Delta From Expected (secs) | -16481 | -38021 | 135201 |
| % of Expected Total (secs) | 93.00% | 83.86% | 157.39% |
| SI Mode | Total Number of Obs. | Total Exposure Time (sec) | Average Exposure (sec/obs) |
|---|---|---|---|
| Primary 6 Chip SI Modes | |||
| TE_007AC | 30 | 219119.00 | 7303.97 |
| TE_007AE | 26 | 178145.00 | 6851.73 |
| TE_00B26 | 20 | 143558.00 | 7177.90 |
| 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 | 8 | 75973.00 | 9496.62 |
| TE_00CA8 | 2 | 19434.00 | 9717.00 |
| 4 Chip SI Modes | |||
| TE_00C62 | 7 | 151270.00 | 21610.00 |
| Totals: | 93 | 787499.00 | 8467.73 |
Rule #1: The key time period for balancing SI mode statistics is the 6 month Epoch
By the end of the epoch, the SI mode statistics should match the rules stated below.
Rule #2: Each of the three, default, 6 chip, SI modes (or their 5 chip equivalents) must be used
at least once in each load week.
- If two SI modes are lagging in either cold time or total time, apportion the week's ECS
measurements between the two of them roughly commensurate with the amount they are lagging.
- The 6 month Epoch allows "even" correction of two lagging SI modes. No
need to pile a weeks worth of ECS measurements on one SI mode if two are lagging.
Rule #3: Make certain to spread the amount of COLD ECS time as evenly as possible across all three SI modes
Balance Cold measurement data between the three default 6-chip modes within 10%
of each other on an Epoch basis
Rule #4: Spread the amount of *Total* ECS time as evenly as possible across all three SI modes.
- Balance Total measurement data between the three default 6-chip modes within 10%
of each other on an Epoch basis.
Rule #3 takes precedence over Rule #4.
Rule #5:At least 60% of scheduled ECS measurement time must be -119.2 deg. C
Rule #6: Any ECS measurements during a Perigee Passage that are cold MUST be assigned to the nominal
ECS run SI modes. i.e. Any requested Rawmode runs can be done with a warm focal plane.
All of the TE_00CA8s get counted as TE_007AE
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.
So watchout for TE_00B26 over-representation.