no | % lost | Attended | Unattended | ||||||
pass | % good | op. | total | hardware | software | % recovered | % recoverable | exp | notes |
9709011434 | 99.64 | X | |||||||
9709021642 | 99.93 | ||||||||
9709032032 | 0.00 | 100 | No signal from HALCA | ||||||
9709051342 | 97.35 | 2 | 2 | VT820 | Azimuth jumps | ||||
9709061457 | 99.93 | VT821 | |||||||
9709071733 | 99.51 | X | |||||||
9709082118 | 0.00 | 100 | ? | ? | Costas never locked | ||||
9709092005 | 99.54 | HALCA signal late | |||||||
9709101344 | 90.47 | 9 | 9 | 90 | Decoder got stuck | ||||
9709111508 | 0.00 | 100 | 100 | TWT problem | |||||
9709121830 | 99.81 | ||||||||
9709132156 | 99.75 | X | |||||||
9709142027 | 93.18 | 6 | 6 | 93 | V047r | ACU problem - ant. not moving | |||
9709151419 | 99.29 | X | |||||||
9709152032 | 99.04 | V047k | |||||||
9709161533 | 99.17 | Azimuth jumps | |||||||
9709171652 | 90.92 | 9 | 9 | V041d | Azimuth jumps | ||||
9709182227 | 96.33 | 3 | 3 | Azimuth, Elevation jumps | |||||
9709191303 | 97.99 | 2 | 2 | Azimuth jumps | |||||
9709201418 | 97.57 | Azimuth jumps, HALCA ant wrap | |||||||
9709202049 | 29.60 | 70 | 65 | 5 | 29 | ACU stopped, HALCA Ku ant. wrap | |||
9709211659 | 37.31 | 62 | 62 | 37 | Demodulator problems | ||||
9709230000 | 97.43 | X | Very short pass | ||||||
9709232028 | 96.06 | 3 | 1 | 2 | 96 | Computer hung-up, Azimuth jumps | |||
9709251439 | 95.21 | 4 | 4 | V022c | Azimuth jumps | ||||
9709261732 | 99.79 | Azimuth jumps | |||||||
9709272112 | 99.69 | ||||||||
9709282038 | 99.56 | X | Azimuth jumps | ||||||
9709302222 | 0.00 | 100 | HALCA not commanded |
There was a total of 29 tracking passes in September of 1997 with 6 of these being unattended tracking passes. There were 2 tracking passes that lost data due to problems with HALCA or the schedule file (SRT file). Of the 23 attended tracking passes 11 collected the maximum amount of valid data possible. Software problems resulted in the loss of data on 4 attended tracking passes while hardware problems resulted in the loss of data on 9 of the attended tracking passes. Two passes lost data due to both hardware and software problems. The operators were able to increase the amount of valid data collected in 5 of the 12 passes were data was lost due to hardware or software problems. Of the unattended tracking passes 6 of 6 obtained the maximum amount of valid data.
Of the 6 recording passes, 2 collected the maximum amount of good data while the other recording passes lost 2%, 6%, 9% and 4% of the data during the passes.
11 of 23 attended passes had max good data.
Operators helped increase amount of good data in 5 of 12 ``bad'' attended passes.
6 of 6 unattended passes had max good data.
A total of 0.22 tracking passes lost data due to software problems.
A total of 2.48 tracking passes lost data due to hardware problems.
A total of 1.00 tracking passes lost data due to problems with HALCA.
2 of 6 recording passes were completely successful.
A total of 0.21 recording passes lost data.