Spacecraft Data Confirm MESSENGER Orbit and Operation

Data from its first three days in orbit about Mercury have confirmed the initial assessment of the spacecraft team that MESSENGER is in its intended orbit and operating nominally.

"The team is relieved that things have gone so well, but they remain busy as they continue to configure the spacecraft for orbital operations and monitor its health and safety in the new environment," says MESSENGER Project Manager Peter Bedini, of the Johns Hopkins University Applied Physics Laboratory in Laurel, Md.

Today the navigation team delivered an orbit determination that will span MESSENGER's first four weeks in orbit. Starting on March 23, 2011, the team will begin commissioning the science instruments. That day the Energetic Particle and Plasma Spectrometer, Magnetometer, Mercury Atmospheric and Surface Composition Spectrometer, Mercury Laser Altimeter, Neutron Spectrometer, and X-Ray Spectrometer will be turned on.