Figure 2.2 Area Over Which Geostationary Orbit Slots Needed To Serve U.S. Power Requirements Are Located NOTES RELATING TO ORBIT ASSIGNMENT: • Geostationary orbit is a limited natural resource--360 • Experts have bracketed number of slots at 180 to 1,800 (problems are mutual interference, collision, eclipse, etc.) • Part of GEO needed by U.S.* for power; approximately one-fourth of orbit, 45-450 slots available (must be shared with other countries of North, Central, and South America) • Other slots may be made available to U.S.* for power export • SPS will share the orbit with communications, navigation, data relay, weather, warning, and conservation satellites * May be a consortium of nations including the U.S. or an international business union satisfying U.S. interests.
RkJQdWJsaXNoZXIy MTU5NjU0Mg==