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Cette carte conceptuelle, cree avec IHMC CmapTools, contient des informations liees a : Deep Space Navigation, Angular Direction from Earth is measured by Triangulation, Large DSN Radio Antennas are operated by NASA's Deep Space Network (DSN), Deep Space Navigation requires determination of Angular Direction from Earth, Two DSN Antennas permits Very Long Baseline Interferometry (VLBI), Deep Space Navigation requires determination of Radial Velocity, Goldstone, California are sites of Large DSN Radio Antennas, Madrid, Spain are sites of Large DSN Radio Antennas, Mathematical Modelling describes Location in 3 D Space over Time, Velocity in Plane-of- the -Sky is inferred from Mathematical Modelling, Two DSN Antennas from the THREE Large DSN Radio Antennas, Goldstone, California have Separation of more than 10.000 km, Radial Velocity is measured by Doppler Shift of Spacecraft's Downlink Signal, Radial Distance from Earth is measured by Triangulation, Canberra, Australia are sites of Large DSN Radio Antennas, Large DSN Radio Antennas have Accurate Locations, 3 Centimeters relative to Earth's Axis, Deep Space Navigation requires determination of Velocity in Plane-of- the -Sky, Madrid, Spain have Separation of more than 10.000 km, Large DSN Radio Antennas can track throughout Earth's Daily Rotation, Simultaneous Tracking by Two DSN Antennas