The Skynet 5D spacecraft was constructed by Astrium, based on the Eurostar 3000Ssatellite bus. It had a mass at launch of approximately 4,800 kilograms (10,600 lb), and is designed to operated for at least 15 years. Its 34-metre (112 ft) solar arrays will generate a minimum of 6 kilowatts to power its UHF and X-band communications systems. The satellite's payload includes jamming countermeasures.
Skynet 5D was launched by an Ariane 5ECA carrier rocket flying from ELA-3 at Kourou. The launch occurred at 21:49 UTC on 19 December 2012. Skynet 5D was one of two satellites aboard the rocket, the other being Mexsat Bicentenario, which was located below it; Skynet 5D was mounted atop a Sylda 5 adaptor.
Payloads are separated by bullets ( · ), launches by pipes ( | ). Manned flights are indicated in bold text. Uncatalogued launch failures are listed in italics. Payloads deployed from other spacecraft are denoted in (brackets).