Overhead Live radio sky
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Solar flux sfu
Planetary K
X-ray flux
Solar wind km/s
IMF Bz nT
MUF overhead MHz
Sun

All-sky view

Everything transmitting above you

Zenith at the centre, horizon at the rim. Satellites are propagated live from orbital elements and trace the arc of the pass they are in. Aircraft appear as chevrons pointed along their track and scaled by how strongly a ground station is hearing them on 1090 MHz.

  • Crewed station
  • Amateur
  • Weather
  • High orbit
  • Aircraft
  • Sun

Predicted trace

Where to tune

Frequency across, time down. The signal arrives high, crosses the rest frequency at closest approach, and departs low.

Select a satellite with a published downlink to see its trace.

Next 12 hours

Passes you could work

Predicting passes…

1090 MHz · ADS-B

Aircraft in range

Flight Type Bearing Elev Range Altitude Signal
Listening…

2.3 – 26 MHz

On shortwave now

kHz Band Station Language From
Reading the schedule…