Both SGDC 1 and Koreasat 7 are geostationary telecommunications satellites. SGDC 1 is a 5800 kg satellite for Brazil, equipped with 50 Ka-band and 7 X-band transponders, and intended for both civil and military use. Koreasat 7 is to provide internet access, multimedia, broadcasting and fixed communications services to South Korea, Philippines, Indonesia and India. Satellite weighs around 3500 kg, and its operational lifetime is 15 years.
Ariane 5 is a heavy-lift launch vehicle, part of the Ariane rocket family.
Arianespace SA is a multinational company founded in 1980 as the world's first commercial launch service provider. It undertakes the production, operation, and marketing of the Ariane programme. Their vehicles launch exclusively from French Guiana in South America.INFO WIKI