Obs April 21/22

From: Leo Barhorst (leobarhorst@zonnet.nl)
Date: Sun Apr 22 2001 - 02:45:53 PDT

  • Next message: David Brierley: "DMB Obs April 20-21"

    A beautiful, clear night, with quite some meteor activity.
    
    The obs started with a low pass of ISS/STS100 of 15 degrees in the
    southwest.
    The sky was still bright with just Sirius visible. ISS was orange, S, -2
    
    
    00-  6 B 01-04-22 02:18:35   LB  312.0 0.2  24 13.00  AA, 3->i, sm, 4 + 6
    Timings of the bright flashes: 13.27 14.10 50.92 53.59 50.92 26.19
    51.16 51.83 sec. Inbetween there were secondary flashes mag 4 and 6, moving
    closer to the primary flash as the sat got more to the east.
    00- 33 D 01-04-22 01:54:01   LB  106.9 0.2  10 10.69  AA, 5->i
    This obs confirms my sighting of yesterdaymorning.
    Timings: 9.58 11.40 10.48 9.81 11.35 9.88 11.22 22.00 11.21 sec.
    00- 33 D 01-04-22 03:30:37   LB  120.7 0.2  11 10.97  AA, 3->i
    Timings: 11.07 10.67 10.76 10.72 33.30 33.58 10.55 sec.
    00- 55 A 01-04-22 02:11      LB                       S, 6
    65- 98 C 01-04-21 22:29      LB                       almost S, 5
    70- 25CD 01-04-22 02:35      LB                       var, 6->i
    71-116 B 01-04-21 21:55:43   LB  183.6 0.2  10 18.36  FF, 4->i, P=12.72+5.64
    Timings: 12.20 6.10 12.09 5.90 12.29 5.84 12.85 5.78 12.53 5.69 12.18 6.17
    13.27 4.98 13.12 5.46 13.42 5.02 13.26 5.45 sec. This gives the combined
    period of 12.72 + 5.64 = 18.36 sec. When there were invisible flashes in
    the long period, the overall period would be 6.12 sec over 30 flashes.; but
    this doesn't fit the obs in PPAS.
    78- 18 B 01-04-21 20:39:02   LB   75.6 0.2  22  3.44  FF, 6->i
    Timings: 6.74 13.83 6.79 13.89 6.90 13.74 13.73 sec
    78- 18 B 01-04-21 22:25:34   LB  124.6 0.2  36  3.46  FF, 4->i
    Timings: 6.81 10.54 6.80 3.48 3.47 3.47 3.44 3.34 17.41 3.48 3.40 3.47
    26.42 8.25 3.43 3.52 3.42 3.46 3.46 3.48 sec
    79- 30 B 01-04-21 20:24      LB                       S, 5
    81- 59 A 01-04-21 20:09:41   LB  191.4 0.2  22  8.70  FF, 4->i, sm, 6
    Timings: 8.71 8.58 8.72 8.77 8.65 8.83 8.68 24.00 6.46 40.79 8.68 8.78 8.82
    10.66 34.75 8.77 8.78 sec. Several primary flashes not seen and some
    secondary flashes timed.
    82- 66 B 01-04-22 03:16      LB                       S, 5
    83- 31 B 01-04-21 20:59      LB                       S, 6
    85- 79 B 01-04-21 20:31:33   LB  103.3 0.2  10 10.33  AA, 4->i, sm, 5
    87- 11 A 01-04-21 21:22      LB                       S, 5
    88- 62 B 01-04-22 02:53:02   LB  109.6 0.5   2 54.8   AA, 5->i, sm, 7
    90-  4 B 01-04-21 22:15      LB                       S, 5
    90- 17 B 01-04-21 21:49:52   LB  123.0 0.5   4 30.7   AA, 4->i
    Timings: 30.35 30.65 61.97 sec
    90-111 B 01-04-21 21:35      LB                       S, 6
    91- 29 B 01-04-21 21:31:18   LB   85.7 0.5   2 42.9   AA, 5->i
    92-  8 B 01-04-21 22:33:44   LB  110.1 0.5   4 27.5   AA, 4->i
    92- 94 A 01-04-21 20:46      LB                       var, 7->i, 1 fl, 2
    93-  1 B 01-04-22 01:59:14   LB  122.4 1.0   1 122    MM, 4->i
    93-  8 B 01-04-21 20:14      LB                       almost S, 5
    95- 12 B 01-04-22 02:32      LB                       S, 5.5
    95- 17 D 01-04-21 20:26:26   LB   28.4 0.5   4  7.1   AA, 7->i
    95- 32 B 01-04-22 01:43:55   LB  156.6 0.5   4 39.2   AA, 4->6
    95- 58 B 01-04-21 22:00      LB                       S, 6
    96- 51 B 01-04-22 02:56      LB                       S, 3
    96- 52 C 01-04-21 21:41:51   LB   83.8 0.2   9  9.31  AA, 5->i
    Timings: 9.59 18.64 18.68 18.50 18.35 sec
    98-  7 D 01-04-21 22:13      LB                       var, 5->6
    98- 43 G 01-04-21 21:20      LB                       S, 3
    98- 55 B 01-04-21 22:04      LB                       almost S, 6
    98- 72 C 01-04-21 21:06      LB                       var, 6->i
    99- 22 C 01-04-22 02:04:16   LB  126.6 0.2  16  7.92  AA, 4->i
    99- 39 B 01-04-21 20:36      LB                       S, 2
    99- 45 B 01-04-22 02:26:19   LB   94.1 1.0   1 94     MM, 4->6
    
    Greetings and clear, dark skies
    Leo Barhorst Medemblik                      244 obs in 2001
    52.767 N  5.09 E  2 m ASL             11259 obs in PPAS
    
    
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    This archive was generated by hypermail 2b29 : Sun Apr 22 2001 - 02:42:44 PDT