Launch observed

From: Daniel Deak (dan.deak@sympatico.ca)
Date: Mon Dec 10 2007 - 22:40:41 UTC

  • Next message: Kevin Fetter: "fuel dump seen through cloud, can't say where the rocket was are other data"

    Hi all,
    
    I observed the trajectory of the Atlas 5 rocket from the roof here. I first
    spotted it while scanning the sky at around 22:12 UTC with 12x60 binoculars.
    Not many stars were visible but I saw TWO objects and not just one. They
    were about 0,2 degree apart with the brightest one lower and farther behind.
    It was around mag 2.5 and steady. The higher object was leading but flashing
    with maxima around mag 2 at the brightest. These maxima were not regular.
    
    I quit my binos to watch the time, it was 22:14 but when I came back to look
    for the objects I momentarily lost them. I regained contact with the steady
    object a while later but by then, the flashing one had disappeared. I
    followed the steady one without interruption until it was lost in shadow (I
    presume) at 22:15:14 ± 1,5 sec. Elevation was around 9 degrees at the
    beginning at an estimated azimuth of 173 degrees. I lost the object at about
    17 degree elevation (too uncertain about the azimuth).
    
    Both object were orang in color. I had a bit of trouble with my eyes because
    of my contact lenses that were moving making my vision blurred a few times
    during the first minute of the obs.
    
    It was a nice sight but no cloud or rocket engine manœuvres were seen. I was
    lucky the sky cleared suddenly at the end of the afternoon.
    
    I will try later for the second pass after its first orbit.
    
    
    Daniel Deak
    Webmestre, site Obsat
    Pompier, municipalite de L'Avenir, Quebec
     
    COSPAR site 1747 : 45.7275°N, 72.3526°W, 191 m., UTC-4:00
     
    Site en francais sur les satellites:
    French-language satellite web site : http://www.obsat.com
    
    -------------------------------------------------------------------------
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:  
    http://www.satobs.org/seesat/seesatindex.html
    



    This archive was generated by hypermail 2b29 : Mon Dec 10 2007 - 22:41:27 UTC