Eutelsat 21B & Star One C3

Star One C3 is a communications satellite operated by Star One, a subsidiary of Embratel. It was built by Orbital Sciences Corporation based on the STAR-2 satellite bus and was launched on 10 November 2012 at 21:05 UTC by an Ariane 5 ECA carrier rocket, as part of a dual-payload launch with Eutelsat 21B. Star One C3 replaced Brasilsat B3 in the 75° W position.

Eutelsat 21B, previously known as Eutelsat W6A, is a French communications satellite. Operated by Eutelsat, it provides direct-to-home broadcasting services from a geostationary orbit at a longitude of 21.5 degrees east. It replaced the Eutelsat 21A spacecraft which was launched in 1999.