Digital.CSIC. Repositorio Institucional del CSIC

oai:digital.csic.es:10261/236027

ORCA Cruise (29SG20181116) carried out on the Research Vessel Sarmiento de Gamboa in 2018, Cosmic rays are high energy protons and atomic nuclei arriving to the Earth coming from the outer universe. Their study is very interesting because of the information they provide about their origin, the solar activity and the magnetosphere, among others. ORCA (Observatorio de Rayos Cosmicos Antartico) is a cosmic ray observatory aimed to study them with unprecedented accuracy in the Antarctic area. ORCA is composed by a neutron monitor (NEMO), a muon telescope (MITO) and a detector of the Trasgo familiy (TRISTAN). All the detectors with gather cosmic ray data on board of the Sarmiento de Gamboa oceanographic vessel along the journey between Spain and South America, before being installed in the Juan Carlos I Spanish Antarctic Base. Some of the main goals are to study the solar activity, the Earth magnetic field and the influence of the atmosphere in the cosmic ray data measured with ground detectors