Orion 3, Raduga 33 bright flashes

From: Ed Cannon (ecannon@mail.utexas.edu)
Date: Tue Oct 31 2000 - 00:02:59 PST

  • Next message: Ed Cannon: "Request for obs"

    One-power flashes, October 31 UTC
    
    99-024A, 25727, Orion 3; 
        0   00:35:59.00
    21.56   00:36:20.56
    32.49   00:36:53.05    -2 (at least) (phase shift?)
    21.85   00:37:14.90    -4 (at least)
    22.07   00:37:36.97
    
    The one at 00:37:14.9 seemed "smeared".  I've noticed this 
    occasionally before with this and other objects.  I wonder, 
    especially for a slowly rotating object, if the specular 
    surface remains well-enough oriented for a half-second, 
    during which the object moves four km, it might cause a 
    "smeared" or "stretched out" appearance to a flash.  Or is
    it just an eye-motion effect?
    
    96-010A, 23794, Raduga 33
        0   2:00:37.20    -1
    17.86   2:00:55.06     0
    17.99   2:01:13.05    +3
    
    Obs. location was UT Austin, 30.286N, 97.739N, 150m.
    
    Also another easy one-power pass of nice flasher 80-087B, 
    12069, FleetSatCom 4 Rk.
    
    "I saw Mir!" -- very nice, four-minute pass.
    "I saw ISS!" -- about two minutes, partly interrupted by 
    12069.
    "I saw ASTRO-D!" -- somewhat unusually bright pass of 22521,
    93-011A (renamed ASCA by the Japanese after launch).  Almost
    seemed like it might have been varying slowly.
    "I saw SERT 2!" -- my first flare of this season of this one 
    (04327, 70-009A) which regularly flared for 10 or 20 seconds 
    or longer last winter to at least +2.
    
    It's a long time until April....  Now that we're on standard 
    time here, with my chosen work-day schedule, I can't get to 
    a good observing site on work nights.  Our colleague Sue 
    Worden, on the other hand, prefers standard time.
    
    Encouragement for city dwellers.  So, being stuck with 
    observing outside of the building where I work, on the Univ. 
    of Texas at Austin campus in the middle of town, without 
    binoculars, last night I saw 14 one-power satellites, including 
    a very nice Iridium flare as well as the above-mentioned, and a 
    few others.  It helps to have several bright passes the same 
    night!
    
    I got home and got my binoculars and made it to the nearby park 
    (which, along with the tennis courts, was unlit) in time to see 
    good old Superbird A (20040, 89-041A) for a few minutes.  Soon 
    after that, it clouded up.
    
    Iridium to be saved?  See the latest news story links on the 
    "Save Iridium" Web site:
    
    http://www.saveiridium.org/
    
    The stories (German: "Boeing rettet Satellitenhandy Iridium" 
    and English: "Bankrupt Iridium set to be saved") are in the 
    Financial Times, dated Oct. 27 and 27, respectively.  I haven't 
    yet seen any other news story about this.  "Flare on"?
    
    Ed Cannon - ecannon@mail.utexas.edu - Austin, Texas, USA
    
    -----------------------------------------------------------------
    Unsubscribe from SeeSat-L by sending a message with 'unsubscribe'
    in the SUBJECT to SeeSat-L-request@lists.satellite.eu.org
    http://www2.satellite.eu.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Tue Oct 31 2000 - 00:07:12 PST