[amsat-bb] Re: Close encounters of the Asteroidal Kind
Robert Bruninga
bruninga at usna.edu
Fri Feb 8 06:30:34 PST 2013
> I wonder what 435kw at 28,000 km will do to the surface temperature on
that rock?
Let's see, power goes down as 1/R squared. So lets compare it to a
candle. A candle is about 50 Watts or about (435000/50W) or about 10,000
times less power. Take the square root of that to get about 100/th the
range.
So that radar at 28,000 km will heat the surface about as much as a candle
would at 280km. (unless I screwed up before my morning coffee)...
Bob,WB4APR
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