Re: Received this from Soviet counterpart on Znamya experiment

Jens Lerch (jlerch@geocities.com)
Tue, 2 Feb 1999 22:28:36 +0000

> Principal characteristics
> Orbit altitude - 360 km
> Reflector diameter - 25 m
> Light spot diameter on the Earth - 6-8 km
> Maximum reflector illumination - 0,2 lc
> Moon illumination - 0,2 lc
> Reflector brightness for watcher on the Earth - (-11,5) star size
> Venus brightness - (-4) star size

An Iridium satellite with a reflecting surface of about a square 
meter can reach a stellar magnitude of -8. What prevents the 500 
times bigger Znamya 2.5 to reach a stellar magnitude of -15?

-- 
Jens Lerch
jlerch@geocities.com
http://www.geocities.com/CapeCanaveral/2221