![small pl CAMK logo](/static/img/camk_logo_half_pl.jpg)
Agnieszka Janiuk (Copernicus Astronomical Centre, Warsaw)
Rafał Moderski (Copernicus Astronomical Centre, Warsaw)
Wojciech Hellwing (Copernicus Astronomical Centre, Warsaw)
Nicolas Chamel (Observatoire deParis, Meudon and the Copernicus Astronomical Centre, Warsaw)