In addition, an experiment to measure gravity will be accomplished with existing spacecraft and ground systems. Dawn is the first spacecraft to orbit two extraterrestrial bodies, the first spacecraft to visit either Vesta or Ceres, and also the first to visit a dwarf planet, arriving at Ceres in March 2015, a few months before New Horizons flew by Pluto in July 2015. The design uses a dual arm optical and focal design with mapping ability to 5 µm. Dawn was a mission to the two most massive bodies in the main asteroid belt – Vesta and Ceres. The Framing Camera is designed to acquire detailed optical images for scientific purposes as well as for navigation in the vicinities of Vesta and Ceres. These diverse worlds offer scientific snapshots of the early solar system. Home; Random; Nearby; Log in; Settings; About Wikipedia; Disclaimers The elemental composition of both Vesta and Ceres will be measured with the Gamma Ray and Neutron Detector. High-gain antenna is 5 feet (1.52 meters) in diameter. Spectral images are formed on two matrix detectors to cover the 0.25-1 µm and 1-5 µm ranges. A Shafer telescope is combined with an Offner spectrometer. VIR Instrument VIR is a Visual and Infrared Imaging Spectrometer in a single optical head. Dawn's science instrument suite will measure shape, surface topography and tectonic history, elemental and mineral composition, as well as seek out water-bearing minerals. GRaND Instrument The GRaND is a Gamma Ray and Neutron Detector spectrometer designed to measure elemental abundances on the surface of Vesta and Ceres. Spacecraft Statistics Dimensions: 5.4 feet (1.64 meters) long, 4.2 feet (1.27 meters) wide and 5.8 feet (1.77 meters) high. These diverse worlds offer scientific snapshots of the early solar system. Dawn is a space probe launched by NASA in September 2007 with the mission of studying two of the three known protoplanets of the asteroid belt, Vesta and Ceres.It is currently in orbit about its second target, the dwarf planet Ceres.

In addition, the way the Dawn spacecraft orbits both Vesta and Ceres will be used to measure … To acquire science data at Vesta and Ceres, Dawn carries three instrument systems. Template:Infobox spaceflight.