European and Brazilian telecom satellite operators have new spacecraft in orbit following their dual launch Nov. 10 on an Ariane 5 from the Guiana Space Center near Kourou, French Guiana.

Launched in the European launch service provider Arianespace’s 52nd consecutive mission success were Eutelsat 21B and Star One C3. Liftoff came at 4:05 p.m. EST, and both spacecraft achieved their geostationary transfer orbits.

Built by Thales Alenia Space on its Spacebus 4000C3 spacecraft bus, Eutelsat 21B will serve Europe, the Middle East, North Africa, Western Africa and Central Asia with 40 active Ku-band transponders from its final position in Eutelsat’s orbital slot at 21.5 deg. E. Long. It will replace the Eutelsat 21A spacecraft.

Star One C3, built by Orbital Sciences Corp. on its Star-2 platform, will give customers of Brazil’s Star One television and telephone service across South America via 28 C-band and 16 Ku-band transponders. It will be positioned at 75 deg. W. Long., and can also operate from 84 deg. W. if necessary.

Eutelsat 21B weighed 5,012 kg (11,050 lb.) at launch, and Star One C3 weighed 3,327 kg, according to Arianespace.