Herschel satellite weighed and fuelled
Wednesday, April 22, 2009 - 14:35
in Astronomy & Space
(PhysOrg.com) -- About two weeks ago, Herschel was weighed to record its dry mass before the satellite was fuelled with 256 kg of liquid hydrazine. After switching it on to confirm normal function, engineers integrated the fuelled satellite with the Ariane 5 adapter.