Re: ISS glints

From: MarthnRozz (marthnrozz@home.com)
Date: Thu Dec 28 2000 - 22:35:11 PST

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    Rob,
    I think what you are seeing at the near end in the picture you referenced is
    the Soyuz, crew return vehicle that brought up the first crew.
    Progress was not redocked when the pictures were taken from Shuttle.  It
    redocked on the 26th and it is at right angles to the stack of pressurized
    elements.
    There are some nice images on the NASA site that may be of help in figuring
    out solar array angles.
    http://spaceflight.nasa.gov/gallery/images/shuttle/sts-97/post-flight/ndxpag
    e2.html
    I agree that the picture you referenced was looking in the direction of the
    velocity vector.
    I'll try get some info from Huston on what profile, if any, the Russians are
    using for their solar arrays.
    Marth
    
    ----- Original Message -----
    From: "Matson, Robert" <ROBERT.D.MATSON@saic.com>
    To: "'Edward S Light'" <edlight@juno.com>; "'Seesat-L'"
    <SeeSat-L@blackadder.lmsal.com>
    Sent: Thursday, December 28, 2000 5:25 PM
    Subject: ISS glints
    
    
    > Hi All,
    >
    > Correction to last message regarding ISS glints -- bright
    > glints off the small solar panels occur on descending node
    > passes in the early morning, not in the evening.  Whatever
    > was glinting for Ed had a surface normal that was pointing
    > about 15 degrees aft of starboard, and about 45 degrees
    > down toward nadir from the horizontal.  Looking at a
    > picture of ISS, the only thing that seems to fit would be
    > the small solar arrays on the Progress attached to the
    > back end of the station (at least I *assume* that's a
    > Progress in this picture):
    >
    > http://spaceflightnow.com/ops/stage4a/001209snapshots/withearth.html
    >
    > In this image, I believe the station is flying in the same
    > direction that the camera is pointed (i.e. the Shuttle that
    > took this picture was trailing the station at the time).
    >
    > Cheers,
    > Rob
    
    
    
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