Trajectories for Cosmos 2428 objects

From: Daniel Deak (
Date: Sat Jun 30 2007 - 20:58:10 EDT

  • Next message: David Anderman: "Re: Trajectories for Cosmos 2428 objects"

    By using the latest TLEs available for the 5 objects related to the Cosmos
    2428 launch, I reconstructed their orbits from launch and was able to
    visualise the release of the 3 debris objects into a higher orbit near
    satellite separation by using the SatSpy software. I've created the
    following 5 images that show all five together after launch and then the 3
    debris grouped in a higher orbit. They soon get apart from each other. A
    nice demonstration of orbital mechanics (all views are normal to the orbital
    plane with satellites moving counterclockwise) :
    June 29, 10:12 UTC
    June 29, 10:45 UTC
    June 29, 11:53 UTC
    June 30, 10:00 UTC 
    Same image zoomed on the 3 debris
    Daniel Deak
    Webmestre, site Obsat
    Pompier, municipalite de L'Avenir, Quebec
    COSPAR site 1747 : 45.7275N, 72.3526W, 191 m., UTC-4:00
    Site en francais sur les satellites:
    French-language satellite web site :
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:

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