PhosphorBeam

SATELLITE TRACKER

Real-time amateur radio satellite tracker. SGP4 propagation, pass predictions, and Doppler-corrected frequencies. Astronomy from AstroEngine, measured against NASA JPL.

Amateur radio satellite tracker for iPhone. Predict passes, track ham radio satellites in real time with SGP4 propagation. Doppler-corrected uplink and downlink frequencies for FM, SSB, and linear transponder birds. Its astronomy comes from AstroEngine, the on-device engine shared across our sky apps and measured against NASA JPL Horizons.