Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!nrl-cmf!ukma!gatech!hubcap!ncrcae!ncrlnk!uunet!mcvax!ukc!cs.tcd.ie!tcdmath!ftoomey
From: ftoomey@maths.tcd.ie (Fergal Toomey)
Newsgroups: sci.space.shuttle
Subject: Re: Sun synchronous orbits
Message-ID: <184@maths.tcd.ie>
Date: 12 Dec 88 16:04:17 GMT
References: <684@pyuxd.UUCP> <1988Dec4.225033.18207@utzoo.uucp> <6464@polyslo.CalPoly.EDU> <12418@bellcore.bellcore.com> <8143@dasys1.UUCP>
Reply-To: ftoomey@maths.tcd.ie (Fergal Toomey)
Organization: Maths Dept., Trinity College, Dublin
Lines: 11

In article <8143@dasys1.UUCP> tneff@dasys1.UUCP (Tom Neff) writes:
>I understand why the sun synchronous orbit is desirable for spy photography,
>but wouldn't there be exploitable weakness in it too?  If all your pix
>of the Leningrad shipyard show it at 2PM local, aren't there games they
>can play with light and shadow to camouflage stuff?

Quite so. I remember seeing a TV program about this some time ago.
Apparently the cunning ruskies in Leningrad or some place used to
haul out giant rubber submarines just when the american spy satellites
came overhead. The americans were completely fooled until a storm
came up and blew the rubber subs onto the piers.