Re: satellite size ,DSLR imaging question etc

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In reply to: ykchia: "satellite size ,DSLR imaging question etc"
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Gimle@GlocalNet

A 40m (at right angles to line-of-sight) object at 400 km occupies 40/400000 = 1/10000 
(21")
That fraction is also valid for prime focus, ie 0.2 mm for a 2m FL.
Divide by pixel size/spacing to get no. of pixels width.

Matson's SkyMap shows range and phase for the closest track mark when you press 't' in the 
map.

----- Original Message ----- 
From: "ykchia" <chiayk1@singnet.com.sg>

>  Would like to know what will be the image size / resolution of a prime
> focus eg. C8 with a DSLR on target like ISS, HST, Spaceshuttle?  Is
> prime focus set up adequate to resolve the structure with out using EP
> projection?  What will be the optimum combinations?   Also formulae for
> these calcuation will be useful .
...
>
>   Appreciate also a link to a utility that compute phase angle and  range.
>

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