Re: blackout period

From: Antonín Vítek (avitek@lib.cas.cz)
Date: Sat Mar 23 2002 - 01:56:57 EST

  • Next message: Alan Pickup: "Decay watch: 2002 March 23"

    Jonathan T Wojack wrote:
    
    > > "High solar angles" means that the Sun is near the orbit plane
    > > normal, so
    > > the satellite is in sunlight along the entire orbit (or just too
    > > long).
    > >
    > > This total illumination occurs approximately every 60 days, but only
    > > during
    > > summer and winter.
    > >
    > > In May 2002 this is on days 26-29.
    >
    > Do the exterior surfaces of the Space Shuttle and the ISS explain why the
    > Shuttle cannot withstand this blackout period, but the ISS can?
    
    I think (I read this elsewhere), the problem is with shuttle's radiators.
    Those radiators - removing excessive heat from orbiter's systems - must be
    kept in shadow, to be efficient. And in high beta angles this condition
    cannot be met for longer periods of time.
    
    
    
    >
    >
    > ------------------------------
    > Jonathan T. Wojack                 tlj18@juno.com
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