GPS Aware
Real-time 3D visualization and monitoring of the GPS satellite constellation. Track satellites, explore the ground segment, and understand GPS like never before.
Features
3D Constellation Viewer
Interactive CesiumJS globe showing all active GPS satellites with real-time orbit propagation
Satellite Details
PRN, SVN, block type, orbital plane, clock data, health status, and active NANUs for every satellite
Ground Segment
Master Control Station, monitor stations, ground antennas, and AFSCN tracking stations worldwide
Coverage & Visibility
Signal footprints, line-of-sight from any ground point, and satellite visibility prediction
Time Controls
Scrub forward and backward in time to see past and predicted future constellation states
GPS Education
Learn how GPS works with interactive tutorials, signal guides, and constellation history
GPS Constellation Status
31 Operational Satellites
6 Orbital Planes • ~20,200 km Altitude • 55° Inclination