Observatoire de Paris-PSL carries out the missions of an INSU Observatory for the Sciences of the Universe. As such, it coordinates and participates in some sixty National Observation Services. See also the page describing INSU-labelled tools.

National Actions for Astronomy
The National Observatory Services (SNO or CNAP "service tasks") carried out at Paris Observatory concern the six National Observatory Actions (ANO) in Astronomy-Astrophysics, accredited by INSU (cf. INSU framework document) :
- ANO1 - Métrologie de l’espace et du temps
- 1.1 .SNO "Gaia"
- 1.2. SNO "Horloges"
- 1.3. SNO "International Celestrial Reference System Product Center" (ICRS-PC)
- 1.4. SNO "International Earth Rotation and Reference Systems Service Earth Rotation parameter product center” (IERS EOP-PC)
- 1.5. SNO "MéO & ILRS / POLAC"
- 1.6. SNO "International VLBI service for geodesy and astrometry"
- 1.7. SNO "PHARAO"
- 1.8. SNO "Service des éphémérides"
- ANO2 - Instrumentation des grands observatoires au sol et spatiaux
- 2.1. SNO "ATHENA / X-IFU"
- 2.2. SNO "Bepi-Colombo / DBSC"
- 2.3. SNO "Bepi-Colombo / MPPE"
- 2.4. SNO "BepiColombo / PICAM"
- 2.5. SNO "BepiColombo / Simbiosys"
- 2.6. SNO "Bepi-Colombo / SORBET-PWI"
- 2.7. SNO "CHARA"
- 2.8. SNO "CLUSTER / STAFF"
- 2.9. SNO "CTA"
- 2.10. SNO "ELT / MICADO - MAORY"
- 2.11. SNO "ELT / MOSAIC"
- 2.12. SNO "ExoMars / MicrOmega"
- 2.13. SNO "JUICE / MAJIS"
- 2.14. SNO "JUICE / RPWI"
- 2.15. SNO "JUICE / SWI"
- 2.16. SNO "JWST / MIRI"
- 2.17. SNO "Magnetospheric MultiScale Mission"
- 2.18. SNO "Mars 2020 / SuperCAM"
- 2.19. SNO "MMX/MIRS"
- 2.20. SNO "PLATO"
- 2.21. SNO "SKATE"
- 2.22. SNO "Solar Orbiter"
- 2.23. SNO "SVOM"
- 2.24. SNO "TARANIS"
- 2.25. SNO "VISTA / 4MOST"
- 2.26. SNO "VLT / MOONS"
- 2.27. SNO "VLTI / GRAVITY - NAOMI"
- 2.28. SNO "WHT / WEAVE"
- ANO3 - Stations d’observation
- ANO4 - Grands relevés, sondages profonds et suivi à long termes
- ANO5 - Centres de traitement, d’archivage et de diffusion de données
- 5.1. CER "Paris Astronomical Data Centre"
- 5.2. PTN "Centre Jean-Marie Mariotti"
- 5.3. PTN "Pôle de diffusion de données de physique des plasmas"
- 5.4. PTN "Pôle de diffusion des modèles de référence pour la matière interstellaire"
- 5.5. SNO "APIS"
- 5.6. SNO "Centre de données de Physique des plasmas"
- 5.7. SNO "Encyclopédie des planètes extrasolaires"
- 5.8. SNO "F-VAMDC"
- 5.9. SNO "MASER"
- 5.10. SNO "Plateforme MIS & Jets"
- 5.11. SNO "Plus-Sismique"
- 5.12. SNO "SPHERE Data centre"
- 5.13. SNO "Surveillance sol du Soleil et du rayonnement cosmique" (3Soleil)"
- 5.14. SNO "VESPA"
- 5.15. SNO "VO Solar System Objects Portal"
- ANO6 - Surveillance du Soleil et de l’environnement spatial de la Terre
Methodological specificities and synergies in expertise are described in each SNO.
Since 2016, INSU’s strategy and structure for "National Observation Services" (SNO) and the main principles associated with them are described in a framework document downloadable at the following address