Results of the GNSS Receiver Experiment OCAM-G on Ariane-5 flight VA 219

The fifth Automated Transfer Vehicle (ATV) was launched on July 29, 2014 with Ariane-5 flight VA 219 into orbit from Kourou, French Guyana. For the first time, the ascent of an Ariane rocket was independently tracked with a Global Navigation Satellite System (GNSS) receiver on this flight. The GNSS receiver experiment OCAM-G was mounted on the upper stage of the rocket. Its receivers tracked the trajectory of the Ariane-5 from lift-off until after the separation of the ATV. This paper introduces the design of the experiment and presents an analysis of the data gathered during the flight with respect to the GNSS tracking status, availability of navigation solution and navigation accuracy