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Heavens-Above Specifications
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When can I see the ISS?
When can I see the ISS? What's that light in the sky? The official Heavens-Above app provides you with precise pass predictions for the ISS, visible satellites, Iridium flares and radio satellites. Main features include:
Live sky chart
See what's in the sky above you right now or at a given moment.
Pass predictions
Get precise predictions for passes of the International Space Station (ISS) and most visible satellites.
Iridium flares
See when Iridium satellites mirror the sunlight directly towards you, resulting in bright flares.
Radio satellites
Get passes for amateur radio satellites, complete with uplink and downlink information.