RE: 3 upcoming iss orbit boost's.

From: David Tiller (dtiller@captechconsulting.com)
Date: Tue May 15 2012 - 11:55:20 UTC

  • Next message: Bill Bard: "Re: 3 upcoming iss orbit boost's."

    I don't know if this has been covered already - if it has I apologize.
    
    Regarding the ISS boosts:
    
    After a fair amount of rooting around on the internet I found that the engines on Zvezda use N2O4/UDMH as the oxidizer and fuel, respectively, and according to this link (http://yarchive.net/space/rocket/exhaust_color.html) that combination burns with a nearly invisible flame. 
    
    Given that, is the burn visible from the Earth, either during a sunlit or a non-sunlit pass?
    
    --
    David Tiller
    Lead Consultant/Architect | CapTech
    (804) 304-0638 | dtiller@captechconsulting.com
    
    ________________________________________
    From: seesat-l-bounces+dtiller=captechconsulting.com@satobs.org [seesat-l-bounces+dtiller=captechconsulting.com@satobs.org] on behalf of Bob Christy [bob@zarya.info]
    Sent: Tuesday, May 15, 2012 5:40 AM
    To: seesat-l@satobs.org
    Subject: Re: 3 upcoming iss orbit boost's.
    
    Only the third one on May 24 is a genuine orbit boost. The other two are
    markers for 'disturbances in the Force' caused by docking and berthing
    operations when the Soyuz TMA-04M and Dragon COTS 2+ vehicles arrive.
    
    The first one is timed at 138/04:38:29.000 (ie March 17), one second
    after TsUP's target docking time for Soyuz.
    
    Bob Christy
    
    
    On 15/05/2012 04:50, Kevin Fetter wrote:
    > http://spaceflight1.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/orbit/ISS/SVPOST.html
    >
    > Kevin
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