Service National d'Observation SNO-4

This Service covers all technical aspects of the preparation, implementation, operation and follow-up of deep surveys with the James Webb Space Telescope (JWST). The aim is to carry out simulations to optimize the observation strategy, to characterize the analysis biases, to organize follow-up observations with other instruments, and to generate catalogs of physical parameters with their uncertainties. In a coordinated, regular and standardized way, the SNO will quickly make available to the community all the simulated and observed data, tools and high-level science catalogs that are used and produced by each participating OSU. The SNO4 deliverables will be accompanied by detailed documentation and disseminated via national databases (CDS, CeSAM / Aspic).

Three Observatories of Universe Sciences (OSU), each with its own expertise, make up this SNO to offer service tasks to the French community : The OSU of Lyon (OSUL), in charge of the coordination of the service, and the two OSU partners; the Institut d'astrophysique de Paris (IAP-UMR7095) and the Pytheas Institute (LAM-UMR7326). This SNO brings together French partner players involved in the James Webb Space Telescope (JWST), with a significant contribution to the development of software instruments, tools and high-level science products.

SNO Survey

In the framework of the SNO, we are collecting the scientific priorities and needs of the community in terms of proposal preparation for the first cycle of JWST observations. Also, we would like to assess the number of potential participants of a workshop that will be organized to help the community in using observations planning and proposal preparation tools. The survey will take only 2 minutes. The deadline to submit your answers is June 15.

Take the Survey

Participating Institutes


The Team

Name Institute
Laurence Tresse Centre de recherche astrophysique de Lyon
Stephane Charlot Institut d'astrophysique de Paris
Hakim Atek Institut d'astrophysique de Paris
Jeremy Blaizot Centre de recherche astrophysique de Lyon
Johan Richard Centre de recherche astrophysique de Lyon
Jacopo Chevallard Institut d'astrophysique de Paris
Olivier Ilbert Laboratoire d'astrophysique de Marseille
Olivier Le Fevre Laboratoire d'astrophysique de Marseille
Léo Michel-Dansac Centre de recherche astrophysique de Lyon
Roland Bacon Centre de recherche astrophysique de Lyon
Stephane Arnouts Laboratoire d'astrophysique de Marseille