Luch 5A (Russian: Луч-5А meaning ray and sometimes transliterated as Loutch-5A) is a Russian Luch relay satellite which transmits data from the Russian Orbital Segment of the International Space Station, and from other satellites in low Earth orbit.

[3] Luch 5A was built by JSC Information Satellite Systems using the Ekspress-1000A bus.

The satellite also relays COSPAS/SARSAT signals and Planet-S System data.

The Proton-M rocket with a Briz-M upper stage launched from Baikonur Cosmodrome launchpad 81/24 at 11:17 UTC.

After four burns of the Briz-M upper stage it was placed into geosynchronous transfer orbit.