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May 1998


 
Table 23.1: GBES Tracking Pass Summary for May 1998
      no % lost Attended Unattended      
pass % good op. total hardware software % recovered % recoverable exp notes
9805010954 99.59                   V012a phase jumps
9805021112 97.32    2 2? 2? 97    V029a3 phase jump
9805031403 99.83                        
9805040745 99.65                      phase jumps
9805041533 95.47    4 4             pht jumps, twt locked up at start
9805050846 98.96                   V008c phase jumps
9805061004 0.00    100             V008c HALCA downlink pointing problem
9805062038 92.28                      phase jumps, HALCA ant. wrap
9805071346 0.00    100             V032a HALCA Ku ADP not working
9805081255 58.63    41             V097a HALCA late on GB
9805090738 99.17 X                     
9805090932 87.14 X 12 12?       12?    no downlink first 10 min, ant. motor?
9805101203 50.84    49 49    49       antenna stuck in limit, oscillations, motor
9805140749 99.45                        
9805141612 99.61                   VS01v   
9805150907 99.44                      phase jumps
9805151858 99.82                   VT838   
9805180641 96.24    3                HALCA commanded to GB 3 min. late
9805180911 99.87                        
9805191026 88.33    11 11             antenna pointing problem
9805200917 99.48                      phase glitches
9805211035 99.40                      phase glitches
9805220616 83.93    16 16? 16?          no lock 1st 30 min, costas lock bit?
9805230651 99.63                      phase glitch
9805240810 99.54                   V085u phase glitch, heavy rain
9805250927 99.12                   V019b phase glitches
9805261045 97.66    2    2          late on src (test software, wrong cmd)
9805290820 0.00    100             V123a2 HALCA not commanded

There was a total of 28 tracking passes in May of 1998 with 2 of these being unattended tracking passes. Of the 26 attended tracking passes 20 collected the maximum amount of valid data possible. Of the 2 unattended tracking passes one collected the maximum amount of good data. There were 5 tracking passes that lost data due to problems on HALCA.

Of the 11 recording passes, 10 collected the maximum amount of good data while the other recording pass lost 2% of the data during the pass.



$\bullet$ 20 of 26 attended passes had max good data.

$\bullet$ Operators helped increase amount of good data in 2 of 6 ``bad'' attended passes.

$\bullet$ 1 of 2 unattended passes had max good data.

$\bullet$ Operators would have increased amount of good data in 1 of 1 ``bad'' unatt ended passes.

$\bullet$ A total of 3.44 tracking passes lost data due to problems with HALCA.

$\bullet$ A total of 0.02 tracking passes lost data due to software problems.

$\bullet$ A total of 0.60 tracking passes lost data due to hardware problems.

$\bullet$ 10 of 11 recording passes were completely successful.

$\bullet$ A total of 0.02 recording passes lost data.


next up previous
Next: June 1998 Up: No Title Previous: April 1998
Toney Minter
2000-04-09