SES Astra
SES Astra SA was a corporate subsidiary of SES , based in Betzdorf , in eastern Luxembourg , that maintained and operated the Astra series of geostationary communication satellites between 2001 and 2011 . 
<triplet> SES Astra <subj> Betzdorf <obj> headquarters location <triplet> Astra <subj> SES <obj> operator