Obs 31 March + 1 April + TiPS

From: Mir16609@aol.com
Date: Sat Apr 01 2000 - 22:43:18 PST

  • Next message: Leo Barhorst: "Obs April 1st"

    Hello everyone.
    
    89- 41 A 00-04-01 03:12:05.0 JDG 598.0 0.3  52 11.50  +1.5->inv
    89- 41 A 00-04-02 03:11:55.4 JDG 357.3 0.3  31 11.53  +3.5->inv
    93- 61 A 00-04-01 02:49:01.8 JDG 140.7 0.5   7 20.1   +4.0->inv
    99- 39 B 00-04-02 04:04:45.0 JDG  68.1 0.3  27  2.52  +4.0->inv
    
    Spot 3 produced bright flashes at 01:06:26.75 and 01:06:47.12 UTC, 1 April on 
    the evening's first pass.  The second pass (02:48 UTC, 1 April) produced more 
    regular flashes at 20 second intervals.
    
    Superbird A was true to Rob Marson's predictions.  Peak flashing (phase 
    shift) was apparent at about 03:06 UT, 1 April and 03:08, 2 April.  The 1 
    April (UTC) flashes were particularly bright.  Some were clearly visible at 
    1x - about +1.5 mag.  One double flash was observed on the 1 April (UTC) obs.
    
    Two similar Iridium flares were observed. Iridium 18 flared to a predicted +1 
    mag at 01:26:30 UTC, 1 April and Iridium 39 flared to a predicted +1 mag at 
    01:19:57 UTC, 2 April.  Both flare were at 0az, 15 el.
     
    TiPS was 6 seconds early (01:54:26UTC, 1 April) and 8 seconds early (00:34:44 
    UTC. 2 April) using the following elset.
    
    TiPS             2.5  0.0  0.0  6.3 d
    1 00006U 00000C   00079.65277778 0.00001787  00000 0  20529-2 0 00000
    2 00006  63.4243 143.2686 0130396 359.8269 142.8215 13.65750644148970
    
    TiPS has always been of interest for me.  In my moderately light polluted 
    location I am usually pretty happy just to detect TiPS. Last evening was my 
    first obs with the 6" Dob.  This evening's obs was extraordinary.  When I 
    acquired TiPS with my 6" Dob about 2 deg above gamma Leo (118az, 59el) I was 
    able to observe the tether as well as the other objects (Ralph and Norton) 
    from 00:44:43 until 00:47:00, 2 April.  At times each end would get bright 
    (+6 mag?). During the entire period of observation the 4 km tether was 
    plainly visible ~0.25 deg of arc.  Quite the sight.
    
    Cheers
    Don Gardner  39.1796 N, 76.8419 W, 34m ASL
    Homepage: http://hometown.aol.com/mir16609/
    
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