OPAR is a component of the International VLBI Service for Geodesy and Astrometry (IVS)

Analysis Service

Data Center

OPAR is one of the three IVS primary data centers. You can

Contributors and Contact

SYRTE, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universités, LNE
61 av de l'Observatoire, 75014 Paris, France
E-mail: firstname dot lastname at obspm dot fr