Re: Ground-based picture of Shenzhou in orbit???
Allen Thomson (thomsona@flash.net)
Mon, 22 Nov 1999 17:25:39 -0600
> At 17:24 21/11/99 -0600, you wrote:
>
> >Hmmm. I agree that the left-hand picture in the control center scene is
the
> >same -- but based on similarities to other ground-based satellite imagery
> >I've seen, I still think we may be seeing a blurry picture of the real
> >thing rather than a low-res computer graphic.
>
[snipage]
>
> Well, the background of the satellite is blue which could suggest a
picture
> taken from another satellite with the Earth as background(remember the ERS
> 1 picture taken by a Spot satellite)
Nope, if the picture were taken (with a color camera, of course) when the
observing site was in daylight the background would also be blue. Daylight
imagery of sun-lit satellites is entirely possible -- Ron D. has done it
with a B&W camera, and the picture
http://www2.satellite.eu.org/image/sts37-usaf-plmtf.jpg
was taken in daylight and was originally in color -- I have a copy of the
videotape it was taken from and a description of the Sony CCD camera used.
Believe me for the moment, the background is quite blue and looks
qualitatively similar to the Shenzhou picture being discussed.
None of this is to say that I'm going to defend the "it's a real
ground-based picture" theme to the death -- but it still looks more like
that to me than the other, clearly simulation-generated pictures on Mark's
page.
>(except from the Keyhole satellites which do spy on other satellites I
believe).
Yep.
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