Photometric Observations 2010-04-01

From: Bram Dorreman (bram.dorreman@gmail.com)
Date: Fri Apr 02 2010 - 01:42:12 UTC

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    PPAS
    yy-nnncc yy-mm-dd hh:mm:ss.s ooo sss.s s.s nnn ff.fff comments
    85- 94 G 10-04-01 22:03:25.9 BD   78.7 0.8   5 15.7   A; +6.2->inv
    96- 37 A 10-04-01 21:08:45.3 BD   51.2 0.3  25  2.05  F; +3.0->inv; 1)
    99- 28 C 10-04-01 22:39:08.6 BD  118.3 2.5   2 59.3   A,; +6.3->8.0; 2)
    09- 36 D 10-04-01 23:23:30.4 BD   66.1 0.1  20  3.3   A; +6.2->7.8
    10-  9 D 10-04-01 22:46:46.6 BD  144.8 0.2   5 29.0   V; +4.0->inv; 3)
    
    PNAS
    yy-nnncc yy-mm-dd hh:mm:ss.s ooo comments
    84- 84 B 10-04-01 23:04      BD  Kosmos-check; 7)
    91- 76 E 10-04-01 22:26      BD  V; +4.3->6.5; lp
    94- 86 G 10-04-01 23:20      BD  V?; +5.8->6.6
    97- 28 A 10-04-01 21:55      BD  S; +4.5 max near gam Leo
    02- 37 A 10-04-01 22:57      BD  S; +6.7 near rho Leo
    05-  4 A 10-04-01 22:12      BD  flared +3.1; 4)
    05-  4 C 10-04-01 22:12      BD  flared +3.6; 4)
    10-  9 A 10-04-01 22:17      BD  +7.5 S; 5) 6)
    10-  9 B 10-04-01 22:18      BD  +8.3 S?; 5)
    10-  9 C 10-04-01 22:17      BD  +7.3 S; 5) 6)
    
    Notes:
    1) Most flashes were +6.5, last but one flash was +3.
    2) Picked satellite up after culmination point and followed it until
       I realised it went into the wrong direction. I was following a
       Globalstar. Fortunately I found this target object and could just
       time two (half) periods with timings on minima:
       56.63 and 61.71
    3) Brightness varied from flashes in the beginning to round maxima
       with secondary round maxima. (F=>A'a')
    4) Flare location near RA 17h20m dec +57°
    5) Magnitude estiamte soem degrees below Polaris
    6) 2010-009A and -009C can be just within FOV of my 7 x 50 binoculars
    7) If time left I check old Kosmos-rockets hoping to be surprised once
       to find it flashing again.
    
    Site 4160: 51.27931 N, 5.47683 E (WGS84), 35 m
    Bram Dorreman
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