ENEIDE: an experiment of a Spaceborne, L1/L2 integrated GPS/WAAS/EGNOS receiver

The ENEIDE mission consisted of 22 scientific experiments that were carried out on the Soyuz and on the International Space Station (ISS) during the flight of the Soyuz I OS to the ISS in April 2005. Among these experiments there was the ENEIDE instrument, which gave the name to the whole mission. ENEIDE is a space-qualified, dual-frequency, integrated GPS/WAAS-EGNOS receiver aimed to the verification of the tracking of GPS plus the augmentation systems from space. The receiver is built by Thales Alenia Space - Italia, Milan plant (formerly Laben), on the basis of the space-qualified dual-frequency receiver LAGRANGE, that will be a payload of several ESA and Italian Space Agency missions like ESA GOCE or the Italian COSMO SKYMED constellation to cite few examples. This paper addresses the first results of the ENEIDE flight data analysis.