A method for sensing and monitoring ICBM threats using a constellation of earth orbiting satellites. The method includes arranging a first and a second plurality of threat sensing satellites in earth orbit. The first plurality is selected to have a first prograde orbit plane with a first inclination...http://www.google.fr/patents/US20070284482?utm_source=gb-gplus-shareBrevet US20070284482 - COMPLIMENTARY RETROGRADE/PROGRADE SATELLITE CONSTELLATION
Numéro de demande: 11/347,128 Numéro de publication: US 2007/0284482 A1 Date de dépôt: 3 févr. 2006 Brevet délivré: US7370566 ( Date de délivrance 13 mai 2008)
