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November 1999


 
Table 59.1: GBES Tracking Pass Summary for November 1999
      no % lost Attended Unattended      
pass % good op. total hardware software % recovered % recoverable exp notes
9911010649 47.61   Y 52 52    48       Formatter not setting up properly (during tape drive move), no Telemetry housekeeping data from HALCA
9911011449 99.36   Y                   periods of high niose
9911020806 99.06   Y                   no Telemetry housekeeping data from HALCA at end of pass,HALCA signal late, periods of high niose
9911021619 99.17   Y                   periods of high niose
9911030923 98.89   Y 1                HALCA signal late, phase glitch, periods of high niose
9911041040 99.13   Y                   HALCA signal late, phase glitch
9911050537 0.00 X 100 100          100 Formatter not accepting MCB commands - hung up command file
9911051350 99.39   Y                   periods of high niose
9911060655 98.94   Y 1                HALCA signal late, periods of high niose
9911070812 99.23   Y                   HALCA signal late, periods of high niose
9911080928 98.69   Y 1                HALCA signal late, periods of high niose, signal lost for 34 seconds at 11h05m22
9911091046 99.27   Y                   HALCA signal late, phase glitch
9911100543 97.10   Y 2                HALCA signal late, periods of high niose, signal lost for 22 seconds at 6h18m07
9911110700 98.26   Y 1                HALCA signal late, periods of high niose, signal lost for 24 seconds at 7h43m18 and for 30 seconds at 8h42m31
9911111532 65.75   Y 34 34    60       ACU stopped?
9911120817 99.37   Y                    
9911130935 98.98 X 1                HALCA signal late, signal lost for 24 seconds at 9h37m31
9911141052 99.32   Y                   HALCA signal late, periods of high niose
9911150549 97.72   Y 2                two brief dropouts due to water tower, HALCA signal late, high noise for entire pass
9911151408 98.46   Y 1                HALCA signal late

There was a total of 20 tracking passes in November of 1999 with 2 of these being an unattended tracking passes. Of the 18 attended tracking passes 16 collected the maximum amount of valid data possible. 1 of 2 unattended tracking passes collected the maximum amount of good data. 9 tracking passes lost data due to the link from HALCA not showing up on time. 4 tracking passes lost data due to twenty or thirty second dropouts of the HALCA signal.

18 tracking passes were observed ``remotely'' from the Jansky Operations Center.



$\bullet$ 16 of 18 attended passes had max good data.

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

$\bullet$ A total of 1.86 tracking passes lost data due to hardware problems.

$\bullet$ A total of 0.10 tracking passes lost data due to the signal from HALCA being late.

$\bullet$ 16 of 18 tracking passes observed from the JOC were succesfull.


next up previous
Next: December 1999 Up: No Title Previous: October 1999
Toney Minter
2000-04-09