Orbits 3 Satellite antennas 3 Small satellites 3 Communication satellites 2 CubeSat 2 Cubesat 2 Errors 2 GPS-receivers 2 Geostationary satellites 2 Global positioning system 2 LEO satellite 2 LEO satellite orbit 2 Perturbation model 2 Satellite orbit 2 Satellite position 2 Satellites 2 Simplified perturbation model 2 Space debris 2 Tracking (position) 2 Two line elements 2 Two-line element sets 2 simplified perturbations model 2 small satellites 2 two-line element set 2 Batteries 1 Bit error rate 1 Commercial Off-the-Shelf (COTS) 1 Cooperative reception 1 Costs 1 Depth of discharge (DoD) 1