Re: LES 8 not observed

From: Stephen D Lalumondiere (Stephen.D.LaLumondiere@aero.org)
Date: Fri Sep 09 2005 - 21:23:22 EDT

  • Next message: Steve Newcomb: "8539 obs of 24680"

    Hi All,
    
    I saw LES 8 last night after nearly missing it on the 7th (local; UTC-7) 
    when Ed timed four flashes.  BTW, my timings for the four flashes Ed timed 
    were:  128.13, 124.19, 124.12 and 124.43.  That would give the same flash 
    period that Ed posted in his PPAS obs.  However, I have noticed that those 
    last few flashes seem to have a shorter period than the preceding (see 
    flash timings).
    
    76-023 A 05-09-07 05:24      SDL       0.5  36 128.9  dT=4639.6
    
    76-023 A 05-09-08 05:18      SDL       0.5  26 127.5  dT=3314.4
    
    Timings:
    127.99, 127.81, 127.66, 127.84, 127.83, 128.12, 127.75, 128.18, 127.95, 
    127.22, 127.50, 127.86, 128.14, 127.96, 127.87, 128.22, 128.00, 127.64, 
    127.77, 127.99, 128.05, 128.18, 128.13, 124.19, 124.12, 124.43
    
    Last night I started looking considerably earlier, and saw flashes around 
    3:40 UTC.  I did not time all of the flashes, and only a few might have 
    made it to 1X this time. 
     
    76-023 A 05-09-09 04:31      SDL       0.5  24 127.2  dT=3052.8
    
    Timings:
    127.28, 127.22, 127.28, 127.22, 127.21, 127.39, 127.23, 127.41, 127.35, 
    126.82, 127.37, 126.76, 126.93, 126.69, 127.15, 127.40, 127.35, 127.43, 
    127.34, 127.23, 127.22, 127.26, 127.12, 127.17
    
    Finally, one PPAS on UNID 90007:
    00-653 A 05-08-30 07:40      SDL 971.8 0.3  11 88.35  Ff (F 42.8 f 45.6)
    
    Timings:
    42.69, 45.55, 42.68, 45.67, 42.76, 45.67, 42.72, 45.50, 42.75, 45.50, 
    42.89, 45.50, 42.93, 45.38, 42.83, 45.57, 42.69, 45.60, 42.93, 45.58, 
    42.61, 45.76
    
    What these numbers mean: 
    http://www.satobs.org/tumble/flashpm.html#PPASformat
    
    Steve LaLumondiere -- 33.820, -118.316
    
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