PROBLEM 2: A spacecraft launched from the European Space Port in Kourou (French Guyana) has as destination Longitude 90 degree at the Geostationary Equatorial Orbit. List the maneuvers needed to put the spacecraft in its target orbit from a parking orbit. Assume the ingestion into GEO is done at longitude 75 degrees. Is there a need for a plane change? If so, where should it performed to save fuel at the parking orbit, at the perigee of the GTO, at the apogee of the GTO or once it is circularized in GEO?