NROL-87

Classified NRO payload, designated USA-326, delivered to a 512 km sun-synchronous orbit at 97.4° inclination. Russia's Kosmos 2558 - a member of the Napryazhenie / Nivelir inspection satellite series - launched in August 2022 and was inserted into the same orbital plane, conducting repeated passes within roughly 60-80 km of USA-326 at five-day intervals.