Question 1

Is AstroSat free?

Accepted Answer

Yes. AstroSat is completely free to use on any device, with no installation or sign-up required to start exploring.

Question 2

How accurate is the satellite tracking?

Accepted Answer

Positions are computed with the SGP4 propagation model from TLEs refreshed every two hours, giving accuracy on the order of a kilometre for most satellites — the same data professionals use.

Question 3

Can I see what satellites are above me right now?

Accepted Answer

Yes. Allow location access and the Orbital Proximity panel, the first-person Sky view and pass alerts will show exactly what is overhead and when the next passes occur.

Question 4

Can I see upcoming rocket launches and space news?

Accepted Answer

Yes. The Mission Feed shows upcoming launches with live countdowns, the rocket and launch site, and a link to the webcast — alongside the latest space news, refreshed automatically.

Question 5

Can I track the ISS with AstroSat?

Accepted Answer

Yes. The ISS is available as a built-in satellite. You can track it on the 3D globe, get pass predictions for your location, and receive alerts before it flies overhead.

Question 6

Can I track Starlink satellites?

Accepted Answer

Yes. AstroSat includes the full Starlink constellation. You can watch the entire fleet on the 3D globe, get pass times for your location, and see when a Starlink train is visible.

Question 7

Do I need an account to use AstroSat?

Accepted Answer

No account is needed to browse the globe, sky and solar system. Signing in only lets you save tracked satellites and custom constellations across devices.

Question 8

Does AstroSat have a solar system view?

Accepted Answer

Yes. The Solar System view zooms out from Earth to a to-scale model of the Sun and all eight planets, placed at their real positions for today using Keplerian orbital mechanics.

Question 9

Which satellites can I track?

Accepted Answer

Thousands of active payloads including the ISS, Starlink, GPS, Galileo, OneWeb, weather and amateur-radio satellites — and you can group any of them into your own constellations.