Asteroid X-ray/Gamma-ray/Neutron Data
These data sets contain nuclear observations which are made using some speciality spectrometers that detect interactions of highly energetic particles. These can be an X-ray spectrometer that measures X-rays that are emitted from the surface. Another one is a neutron spectrometer, which detects different energy states of neutrons that are created when cosmic rays impact the surface. Detailed analysis can separate particles, atoms, and molecules by their mass, momentum, or energy. Data from these observations can be used to determine chemical composition and abundance.
- Complete PDS4 GRaND Archive - Same data as the PDS3 version, with enhanced metadata and documentation
- Dawn GRaND Mars and Cruise raw and calibrated (PDS3)
- Dawn GRaND Vesta raw and calibrated (PDS3)
- Dawn GRaND Ceres raw and calibrated (PDS3)
- Dawn GRaND Abundance Maps of Vesta (PDS3)
- Dawn GRaND Abundance Maps of Ceres (PDS3)
- NEAR Gamma-ray Spectrometer
- NEAR X-ray Spectrometer