LB obs 2007 Apr 30

From: Leo Barhorst (leo.barhorst@tele2.nl)
Date: Tue May 01 2007 - 15:25:31 EDT

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    Nice and clear evening. Dry air from the east helped to keep the
    sky transparant, despite a near full moon.
    The day before aircraft contrails were blown apart and made the
    sky almost completely covered with thin cirrus. 
    
    Saw a UNID while waiting for 07-12 K and B near Nu and Zeta Leo Minor.
    It was S, 6 and moved towardsUMA. Passed over Gamma UMA at 23:41:03.33 UT.
    Not the 07-12 objects as it was on a bit more westerly track.
    
    02- 36 C 07-04-30 20:52:23   LB  147.0 0.5  10 14.70  Aa, 4(5)->i
    Timings: 14.61 14.32 14.52 14.52 14.93 29.57 14.83 14.49 15.21 sec.
    
    02- 54 C 07-04-30 20:27:41   LB  116.6 0.5  25  4.66  AA, 4->i
    Timings:  4.97 4.43 4.42 4.76 4.57 4.36 4.69 4.78 4.67 4.70 4.66
    4.89 4.47 4.85 4.31 4.84 4.74 4.79 4.75 4.94 4.32 4.82 4.17 5.36 
    4.32 sec.
    
    03- 37 C 07-04-30 21:59:47   LB  117.7 0.5  10 11.77  AA, 4->i
    Timings: 11.08 12.20 11.75 11.99 11.35 12.14 11.27 12.28 23.63 sec.
    
    04- 28 B 07-04-30 22:23:59   LB  103.9 0.5  10 10.39  Aa, 4(5)->i
    Timings: 9.83 10.76 10.84 10.04 9.19 11.30 10.24 10.96 9.84 10.89 sec.
    
    07- 10 B 07-04-30 21:08:38   LB  170.8 0.5  12 14.24  AA, 3->i
    Timings: 13.61 15.32 13.77 14.94 14.05 14.98 10.89 15.82 12.73 
    16.68 11.53 16.50 sec.
    Possible combined period of 28.5 sec.
    Nice naked eye flasher.
    
    07- 12 G 07-04-30 21:02:06   LB  212.4 0.5  11 19.31  AA, 4->i
    Timings: 8.10 10.43 10.67 8.77 11.18 7.80 11.54 9.51 9.56 9.93
    9.46 9.43 8.92 7.65 9.22 10.46 9.45 9.15 11.37 9.24 9.98 10.96 sec.
    Irregular flash pattern
    
    87- 60 A 07-04-30 20:05:12   LB  156.4 0.5  12 13.03  AA, 4->6
    Timings: 16.07 12.34 9.56 14.03 12.02 12.31 13.22 11.64 14.70
    9.72 18.47 12.29 sec.
    Irregular pattern.
    
    87- 74 G 07-04-30 20:43:04   LB   72.0 1.0   2 36.0   MM, 5->7
    Timings: 36.24 35.76 sec.
    
    92- 36 B 07-04-30 22:16      LB                       S, 6
    93- 56 B 07-04-30 21:52:15   LB   80.0 0.2   8 10.00  FF, 6->i
    Timings: 10.16 19.57 10.15 9.97 30.17 sec.
    Difficult to time, partly due to bright moonlight.
    
    97- 82 B 07-04-30 21:19:07   LB   83.0 0.5   5 16.6   AA, 5->i, some F, 3
    Timings: 11.73 5.77 1.77 8.37 8.24 9.01 8.40 16.88 4.80 8.06 sec.
    Irregular combined period.
    
    2007: 190 obs
    PPAS: 14901 obs
    
    Greetings and clear skies
    Leo Barhorst - Medemblik - The Netherlands
    N 52.677 E 5.09
    Webpage: www.satlist.nl
    
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