The observation is at the heart of the sovereign missions of the OASU (reason why the structure is called an “Observatory”). This mission is available in “observation services”, training and activity Federation. Observational services include national observational services (SNO) and local observing services (SOS). Observational services (labelated or not) are based on observational means and platforms, and on the availability of these observations by the CeDONA Federative data centre.
18 national observational services are listed by the INSU (blind Web database listing SNO) where OASU is either responsible or partner. SNO and SO are related to the research topics addressed within the OASU and cover the disciplines: Astrophysical astronomy – ocean atmosphere – continental surfaces and interfaces.