LISA Pathfinder will pave the way for future missions by testing in flight the very concept of gravitational wave detection: it will put two test masses in a near-perfect gravitational free-fall and control and measure their motion with unprecedented accuracy. LISA Pathfinder will use the latest technology to minimise the extra forces on the test masses, and to take measurements. The inertial sensors, the laser metrology system, the drag-free control system and an ultra-precise micro-propulsion system make this a highly unusual mission.
Heliocentric L1At an orbital location of 15° West, Telstar 12 VANTAGE will provide coverage of the Americas, Europe, Africa and the Middle East, as well as high traffic maritime zones in the Mediterranean, North Sea, Caribbean and the South Atlantic. The satellite contains 52 Ku-band transponders at 36 MHz.
Geostationary Transfer Orbit