don't believe wikipedia because everyone can edit easily,
SES8 satellite recently 10 years completed till they have next 5 years time,
ST2 satellite in few months will complete 13years,
till they have next 2 years time to use,
Here one interesting point,
ST2 satellite will expire after two years" then Ses8 that time 12years will complete,
if dishd2h taken decision that day about "use of single satellite" will use only 3-years,
later Ses8 satellite also expire.