SkyAlmanac

ISS

ISS passes over San Antonio, Texas, United States

Upcoming visible passes of the International Space Station over San Antonio, Texas, United States. A pass is "visible" when the station is sunlit against a dark sky.

At 29.4° latitude, San Antonio, Texas, United States lies under the ISS ground track — on the best passes the station crosses directly overhead.

Upcoming visible passes over San Antonio, Texas, United States

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Spotting the Space Station

The ISS looks like a bright, steady star gliding across the sky in a few minutes — no blinking lights. It is only visible when it is still catching sunlight while your sky is dark, so passes cluster in the couple of hours after dusk and before dawn.

Visibility comes in streaks: the orbit precesses, so a city gets a run of evening passes for a week or two, then a quiet spell, then a run of pre-dawn passes. If nothing is listed right now, check back within a few days.

Data: N2YO, Meeus astronomical algorithms. How we calculate this

Frequently asked questions

How high in the sky does the ISS get over San Antonio, Texas, United States?

Because San Antonio, Texas, United States (latitude 29.4°) lies within the ISS orbit's ground track, the station can pass anywhere up to the zenith — the brightest passes go almost straight overhead.

How often can you see the ISS from San Antonio, Texas, United States?

The station orbits every ~93 minutes, but you only see it when it is sunlit against a dark sky. Visible passes come in runs of several evenings or mornings every few weeks, with 1–3 sightings per night during a run.

What does the ISS look like?

A bright, steady, fast-moving star — often brighter than Venus — crossing the sky in 2–6 minutes. It does not blink; anything flashing is an aircraft.

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