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March 2000


 
Table 67.1: GBES Tracking Pass Summary for March 2000
      no % lost Attended Unattended      
pass % good op. total hardware software % recovered % recoverable exp notes
0003010143 99.42 X                    
0003020313 97.99 X 2                HALCA signal dropout from 03h46m38 to 03h47m02, phase glitch, short pass
0003030453 98.78   Y 1                HALCA signal dropout from 07h45m49 to 07h46m11, HALCA signal late
0003040733 99.92   Y                    
0003050016 77.24 X 22                HALCA signal late, short pass, high noise levels due to large doppler residual frequency
0003050943 99.83   Y                    
0003060143 98.79 X 1                HALCA signal late, high noise levels due to large doppler residual frequency
0003070310 99.38 X                   high noise levels due to large doppler residual frequency
0003080526 99.79   Y                   phase glitches
0003091031 99.43 X                   high noise levels due to large doppler residual frequency
0003100953 99.80   Y                   phase glitch
0003111218 93.77 X 6                high noise levels due to large doppler residual frequency, HALCA signal ended 30 seconds early - orbit prediction problem near perigee?
0003120536 99.59   Y                   HALCA signal dropout from 6h27m38 to 6h27m58
0003130535 99.95   Y                   Decoder did not set up properly?, high noise levels due to large doppler frequency
0003140733 69.08   Y 30 30    -30       antenna elevation readout developed errors, problem not handled correctly
0003170456 99.85   Y                W068a5 phase glitch
0003180536 99.90   Y                W088b3  
0003220433 99.72   Y                W022a7 HALCA signal ended early
0003230535 99.94   Y                W040a6 high noise levels
0003240903 99.39 X                   HALCA signal dropout from 9h11m25s to 9h11m33s and 9h20m21s 9h20m31s (yellow button fixing problems?)
0003251003 99.81 X                   phase glitch
0003261218 99.79 X                    
0003270418 99.89   Y                W022a6 phase glitch
0003280530 99.94 X                    
0003290712 86.62 X 13 13       13    no link last 30 minutes, ACU problems
0003310358 99.89   Y                W094b6  

There was a total of 25 tracking passes in March of 2000 with 12 of these being unattended tracking passes. Of the 13 attended tracking passes 12 collected the maximum amount of valid data possible. Of the 12 unattended tracking passes 11 collected the maximum amount of valid data possible. One tracking pass lost data due to orbit prediction having a large error. Four tracking passes lost data due to the link from HALCA ending early or arriving late. Another two tracking passes lost data due to antenna ACU problems.

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



$\bullet$ 12 of 13 attended passes had max good data.

$\bullet$ Operators helped increase amount of good data in 0 of 1 ``bad'' attended passes.

$\bullet$ 11 of 12 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 0.43 tracking passes lost data due to hardware problems.

$\bullet$ A total of 0.26 tracking passes lost data due to the signal from HALCA being late or ending early.

$\bullet$ A total of 0.06 tracking passes lost data due to poor orbit predictions.

$\bullet$ 6 of 6 recording passes gathered the maximum amount of valid data.

$\bullet$ 12 of 13 tracking passes observed from the JOC were succesfull.


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