Beschreibung : Esa seal and ESOC Darmstadt. ESRO 1 & 2 represented the direct satellite descendants of the experience gained with the sounding rocket experiments.
ESRO II was dedicated to the fields of solar astronomy and cosmic rays. Sometimes the two satellites are also referred to as ESRO-1A or Aurora and ESRO-2B Iris respectively.
Darmstadt post stamp, opérationnal center of ESA. ESRO 1 & 2 represented the direct satellite descendants of the experience gained with the sounding rocket experiments.
ESRO II was dedicated to the fields of solar astronomy and cosmic rays. Sometimes the two satellites are also referred to as ESRO-1A or Aurora and ESRO-2B Iris respectively.