Heavens-Above

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:

<b>Financed by adverts</b>

This version integrates advertisements to make it available for free. Get <b>Heavens-Above Pro</b> to remove the adverts.

<b>Live sky chart</b>

See what's in the sky above you right now or at a given moment.

<b>Pass predictions</b>

Get precise predictions for passes of the ISS and most visible satellites.

<b>Iridium flares</b>

See when Iridium satellites mirror the sunlight directly towards you, resulting in bright flares.

<b>Radio satellites</b>

Get passes for amateur radio satellites, complete with uplink and downlink information.

<b>All calculations performed locally</b>

Predictions are generated right on your phone so you only need a data connection every few days.

<b>Orbit and ground track</b>

See details about the orbit of any selected satellite rendered and with all relevant data.

<b>Satellite details</b>

Get detailed information about any satellite, as provided by our Heavens-Above website.

<b>Timeline</b>

Get a visual overview over passes and animate the position of satellites on the sky chart and on the ground track.

<b>Night mode</b>

An optional red on black color scheme to preserve your night vision.

<b>Tracker</b>

Easily find or identify any object in the sky by orienting your device towards it.

<b>Calendar Integration</b>

Quickly add interesting passes to your calendar so you won't miss them.</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br>