Overhead Live radio sky
--:--:-- UTC
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

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Frequency across, time down. The signal arrives high, crosses the rest frequency at closest approach, and departs low.
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Select a satellite with a published downlink to see its trace.

Next 12 hours

Passes you could work

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Predicting passes…

Received audio

Listening

Idle
— —

Pick a frequency from On shortwave now below. Audio comes from a public receiver near you, not from your own aerial.

1090 MHz · ADS-B

Aircraft in range

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Flight Type Bearing Elev Range Altitude Signal
Listening…

2.3 – 26 MHz

On shortwave now

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kHz Band Station Language From Listen
Reading the schedule…