Optus 10 is a Fixed Satellite Services (FSS) spacecraft being built for Australian telecommunications service provider SingTel Optus. Optus 10 will be the tenth satellite in the SingTel Optus fleet and the second built by SSL. It has been designed with 24 Ku-band transponders, demonstrating the flexibility of the 1300 satellite platform to accommodate missions requiring smaller satellite payloads. The satellite is scheduled for launch in 2013.