Gravity Probe B (GP-B) was a satellite-based experiment to test two unverified predictions of general relativity: the geodetic effect and frame-dragging. This was to be accomplished by measuring, very precisely, tiny changes in the direction of spin of four gyroscopes contained in an Earth-orbiting satellite at 650 km (400 mi) altitude, crossing directly over the poles.
Low Earth OrbitSoyuz TMA-4 begins Expedition 9 by carrying 3 astronauts and cosmonauts to the International Space Station. Russian Commander, cosmonaut Gennady Padalka alongside Flight Engineers, Michael Fincke (NASA) & André Kuipers (ESA) will launch aboard the Soyuz spacecraft from the Baikonur Cosmodrome in Kazakhstan and then rendezvous with the station. It landed on October 24, 2004, 00:35:00 UTC
Low Earth OrbitSUPERBIRD-6, slated for an orbital slot at 158.0 degrees East longitude, will provide business telecommunication services using a Japan Beam for Ku-Band and Ka-Band services along with a steerable spot beam for additional Ka-Band services.
Geostationary Orbit