At 03:46 14/02/99 , Igor Lissov wrote: >Hi everybody, > >Approximate geostationary locations of U.S. DSP early warning satellites >and graphs of their movements from 1979 are available at Looking at the info provided on the site Igor mentioned, a satellite spin period of 10.24 seconds is mentioned, with the spin axis being in the direction of the Earth's Centre. Tony Beresford