As an Observatory of the Universe Sciences (OSU), the Astronomical Observatory of Strasbourg plays a major role in several national services of observation (SNOs) of the National Institute of Universe Sciences (INSU).
- CDS, Strasbourg Astronomical Data Center (ANO5), research infrastructure hosted by ObAS
- SSC-XMM, Survey Science Center of the XMM-Newton du satellite (ANO5), coordinated by Observatoire Midi-Pyrénées
- Ground segment of the MXT camera of the SVOM mission (ANO2), coordinated by Observatoire Paris-Sud
ObAS contributes to other services: