Obs Apr 18

From: Leo Barhorst (leobarhorst@zonnet.nl)
Date: Sat Apr 19 2003 - 06:28:45 EDT

  • Next message: Peter Wakelin: "SATOBS 2003 April 18 (cont)"

    With a strong north-easterly cold wind, the sky was cristal clear.
    No disturbing moon.
    Saw all the 03-9 objects. A and B were on time based on Teds tle's.
    E and F were flashing Irr. Will use Synodic to see if there is a
    pattern. 
    
    01- 23 B 03-04-18 22:01:30   LB   92.8 0.5   2 46.4   MM, 4->i
    Timings: 49.54 43.24 sec.
    Flat maxima, dtm.
    
    01- 56 F 03-04-18 21:39:47   LB  389.7 0.2  80  4.872 FF, 3->7
    Timings: 4.94 5.28 4.08 5.35 5.03 4.70 4.60 5.22 4.79 4.99 4.25
    5.40 4.99 4.94 4.48 5.01 5.07 4.55 4.89 5.02 4.84 4.78 5.17 4.46
    4.94 4.99 4.68 5.02 4.85 4.92 4.79 4.70 4.84 5.16 5.45 3.94 5.31
    4.79 4.63 5.33 4.79 4.97 4.32 5.57 4.96 4.80 4.90 5.31 4.38 5.56
    4.44 4.97 5.24 4.60 4.51 4.37 5.29 4.84 5.63 4.70 5.35 4.47 4.87
    4.94 4.38 4.84 5.66 5.03 4.55 3.96 5.49 4.41 5.40 4.35 5.33 4.27
    4.94 4.75 4.77 4.74 sec.
    At first look P seems to be 9.74 sec; with with some phase
    shifting of the two(?) reflecting surfaces. Will use Synodic to
    get a better determination.
    
    02- 37 D 03-04-18 20:15:04   LB  112.2 0.5   8 14.0   AA, 6->i
    Timings: 16.01 13.39 13.09 26.82 17.75 25.12 sec.
    A bit Irr. Perhaps together with the second pass and Synodic
    a pattern can be established.
    
    02- 37 D 03-04-18 22:19:43   LB                       Irr, AA, 5->i
    Timings: 23.97 20.21 23.46 17.72 sec.
    
    03-  9 A 03-04-18 21:13:13.69LB                       S, 4
    Timed at three positions:
    21:12:28.68 UT RA=12.35 d=+57
    21:12:44.29 UT RA=12.30 d=+60
    21:13:13.69 UT RA=22.00 d=+88
    
    03-  9 B 03-04-18 21:51:47.31LB                       S, 3
    Timed at two positions:
    21:50:43.32 UT RA=07.35 d=+32
    21:51:47.31 UT RA=05.10 d=+45
    
    03-  9 C 03-04-18 20:37:00.47LB                       S, 5
    Position at timing: RA=15h25m d=+30
    
    03-  9 D 03-04-18 20:46:50.98LB                       S, 5
    Followed object F at 1m14.68s; Passed between 45 and 39 Draco,
    RA=18.30 d=+58.
    
    03-  9 E 03-04-18 20:37:27.30LB                       Irr, FF, 3->i
    Followed object C at 26.83 sec.
    Timings: 11.69 4.13 10.30 39.72 6.34 6.84 12.94 18.51 10.03 sec.
    Pattern: A F a A F F a a a. 
    
    03-  9 E 03-04-18 22:11:33   LB                       Irr, FF, 2->i
    Timings: 7.03 12.41 10.93 10.37 23.38 7.98 7.79 14.25 21.79 sec.
    Still an Irr pattern in this westerly pass.
    
    03-  9 F 03-04-18 20:45:36.30LB                       Irr, FF, 4->7
    Passed between 45 and 39 Draco, RA=18.30 d=+58, at timing (last flash)
    Timings: 9.40 14.58 12.56 11.69 12.89 12.81 sec. P=12.8 sec? 
    
    76- 22 A 03-04-18 20:59:01   LB  101.0 0.5   4 25.3   AA, 4->i, ssm, 5
    Timings: 24.79 27.73 23.15 25.34 sec.
    
    78- 18 B 03-04-18 21:19:48   LB   80.4 0.2  22  3.66  FF, 6->i
    Timings: 3.62 3.63 7.37 7.34 3.71 3.58 3.62 3.70 3.63 3.59 7.43
    3.67 3.66 3.57 3.72 7.34 3.62 3.62 sec.
    Some flashes very weak and looking more like a glint than a 
    flash; several maxima not seen.
    
    88-102 A 03-04-18 19:56:56   LB  109.7 1.0   1 110    MM, 5->i
    90- 10 A 03-04-18 20:20      LB                       almost S, 5
    
    92-  8 B 03-04-18 20:54:05   LB  100.8 0.5   7 14.4   AA, 5->i
    Timings: 15.44 13.57 12.39 17.61 14.67 27.15 sec.
    
    92- 76 B 03-04-18 20:28      LB                       S, 3
    94- 24 B 03-04-18 20:18      LB                       S, 4
    94- 45 B 03-04-18 21:07:58   LB   85.9 1.0   1 86     MM, 5->i
    96- 51 B 03-04-18 21:57      LB                       almost S, 5
    
    97- 64 A 03-04-18 19:46      LB                       almost S, 3
    Used Skymap to ID this UNID as Lacrosse 3.
    
    2003: 162 obs
    PPAS: 12554 obs
    
    Greetings and clear, dark skies
    Leo Barhorst Medemblik
    52.76350 N  5.09114 E  2 m ASL
    http://www.home.zonnet.nl/leobarhorst/index.html
    
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