Watch a view of the launch of SpaceX’s Falcon 9 rocket on Jan. 7 from Cape Canaveral with the U.S. government’s top secret Zuma payload.

An International Launch Services Proton rocket launched at 7:16 p.m. EST Sunday (0016 GMT Monday) with the Yamal 401 communications satellite for Gazprom Space Systems. The rocket’s Breeze M upper stage will deploy the spacecraft into geostationary orbit about nine hours after liftoff.

Tyvak, a manufacturer of small satellites, disclosed new details Monday about an experimental spacecraft launched aboard a SpaceX Falcon 9 rocket Saturday, revealing plans to validate compact optical telescopes that could offer a new way to monitor space traffic and orbital debris.