"Gunter Krebs" wrote:
I recently stumbled across this page showing illustrations pretending
to be of the japanese IGS spy-sats.

http://www.spaceserver.org/image/igs/igs.html

I guess, these are simply based on the phantasy of the author, or did
i miss a publication of details of the IGS spacecrafts?

Here's Babelfish's translation of the page:
http://babelfish.altavista.com/babel...www.spaceserve
r.org%2Fimage%2Figs%2Figs.html&lp=ja_en&tt=url

Just to add my feeble skills to the party, one of the
diagrams mentions that the optical IGS satellite has
separate multi-spectral and panchromatic optics, with
resolutions of 5m and 1m, respectively.