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PROX-1

US University Satellite (Deployed & Photographed LightSail 2) · Georgia Institute of Technology

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PROX-1, a Georgia Tech satellite that deployed and photographed the Planetary Society's LightSail 2 solar sail spacecraft — the first satellite designed specifically to release and document another spacecraft's deployment sequence in orbit, capturing the historic first images of a working solar sail unfurling in space.

Its orbit

Orbit
Low Earth Orbitcan appear as a fast-moving star at dawn or dusk
Altitude
371–376 mi (598–605 km)
Inclination
24.0°
One orbit
96.6 minutes14.9 orbits a day
NORAD ID
44339
Int’l designator
2019-036A
Launched
2019

Orbital elements from CelesTrak, as of 21 Sep 2026.

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