Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Astroparticle Physics 652-662 Neutrino telescope Track reconstruction 2011 fdi:010053478 ENG Astroparticle Physics 0927-6505 ISI:000289329100002 9 10.1016/j.astropartphys.2011.01.003 https://www.documentation.ird.fr/hor/fdi:010053478 https://www.documentation.ird.fr/intranet/publi/2011/05/010053478.pdf 34 Horizon (IRD) An algorithm is presented, that provides a fast and robust reconstruction of neutrino induced upward-going muons and a discrimination of these events from downward-going atmospheric muon background in data collected by the ANTARES neutrino telescope. The algorithm consists of a hit merging and hit selection procedure followed by fitting steps for a track hypothesis and a point-like light source. It is particularly well-suited for real time applications such as online monitoring and fast triggering of optical follow-up observations for multi-messenger studies. The performance of the algorithm is evaluated with Monte Carlo simulations and various distributions are compared with that obtained in ANTARES data. 060 ; 020 UR082