{Filename?} Ang: Re: Ang: Re: UNID (NROL?)

From: Björn Gimle (bg_26934@glocalnet.net)
Date: Fri Oct 08 2010 - 18:55:25 UTC

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    You are "right" about USA 215 it culminated high in the NW, and just a little left of SW 
    at 20 deg alt., but it passed some 30 min later, and in deep shadow.
    A faked orbit in the same orientation at 23:24 culminates high in the SE, and moves to 
    the SSW.
    A search on all elsets shows only objects at 10000+ km altitude sunlit around high WNW 
    culmination.
    However, two Molniyas enter shadow at 20 deg alt while descending to 4000+ km.
    Attached plots show the slow motion in 5 minutes of the objects around culmination,
    and this slow motion makes the Molniyas to appear to be retrograde (Earth moves East 
    while they descend)
    
    /Björn
    
    >----Ursprungligt meddelande----
    >Från: k4hsm@knology.net
    >Datum: 2010-okt-08 06:02
    >Till: <k4hsm@knology.net>, <seesat-l@satobs.org>
    >Kopia: <bg_26934@glocalnet.net>
    >Ärende: Re: Ang: Re: UNID (NROL?)
    >
    >It was moving to the SSW, the times were when my daughter first spotted it and I 
    stopped observing through binoculars as it was getting towards the horizon (it was 
    somewhat hazy, but clear sky).
    >
    >The times are approximate.
    >
    >It was moving at a speed relative to a LEO, roughly 750-1000km in altitude. Not as fast 
    as ISS or HST, but about the speed of a Cosmos rocket body in polar orbit or NOSS sats.
    >
    >No tracks on Calsky matched up with the bird. Due to the haze, it was hard to gauge the 
    period due in part also to the different magnitudes with which it was appearing.  I went 
    down to Mag 8 on Calsky, with nothing relative to it's location.
    >
    >My daughter spotted it with the naked eye, and it was then confirmed by my brother who 
    was with us. It was overhead and to the WSW at about 80 degrees altitude as they spotted 
    it moving SSW at 11:24ET/0324Z last Saturday night/Sunday morning.
    >
    >I kept making sure it was not an airplane. No strobes, contrails, changes in direction, 
    etc.
    >
    >It passed between Cygnus and Pegasus.
    >
    >I appreciate the effort.
    >
    >Greg
    >K4HSM@knology.net
    >
    >
    > On Thu 07/10/10  2:51 PM , Björn Gimle bg_26934@glocalnet.net sent:
    >> 
    >> I should have written "to the SSW" !
    >> 
    >> But in essence, it is less relevant for identification to estimate in what
    >> compass direction it may be heading for the horizon -
    >> much more relevant is the direction (and speed) of motion in the immediate
    >> vicinity of where you observe the object.
    >> Most easy (for naked eye or binocular obs) is relative to a vertical line,
    >> e.g. like on a clock face or correspondingly in degrees, ie 3 o'clock is 90 degrees 
    (to
    >> the right, horizontally), in other cases (telescope?) relative to a line between a
    >> pair of stars.
    >> >----Original message----
    >> ...
    >> >Did you see it move straight down to the SSE, or at
    >> an angle, or could it have been >geostationary?
    >> >Did you watch it for four minutes, or is this the
    >> time uncertainty?>Do you have any stellar references?
    >> >If you saw it move, how much in what length of time?
    >> (a fists width, a pair of stars...)
    >> >Did you see ANY tracks on CalSky? At that time and
    >> latitude, no LEOs are visible in the 
    >> >SSW.
    >> >If you compare to CalSky objects (if any) was its
    >> motion parallell to (left or right) or 
    >> >at some angle?
    >> 
    >> 
    >> 
    >> 
    >
    >
    
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