Nasa Logo PDS Asteroid/Dust Archive
PDS Logo

Dawn at Ceres - GRaND

Raw Data (Level 1a)

The GRaND L1a are a time-ordered collection of gamma ray and neutron counting data and histograms acquired by GRaND during all phases of the Dawn mission. The dataset includes state-of-health data, such as temperature and voltage readings, needed for the analysis of the counting data. This data set covers the entire Ceres encounter through Extended Mission XM04 (Opposition orbit).

Status: Archived
Data set: Browse: Download:
GRaND Raw data (L1a), Ceres Approach through HAMO (3.6 Gb) DWNCAGRD_1A Download (1.4 Gb)
GRaND Raw data (L1a), Ceres LAMO (6.7 Gb) DWNCLGRD_1A Download (2.5 Gb)
GRaND Raw data (L1a), Ceres Extended LAMO (XMO1) (2.1 Gb) DWNC1GRD_1A Download (765 Mb)
GRaND Raw data (L1a), Ceres Juling (XMO2) (1.3 Gb) DWNC2GRD_1A Download (522 Mb)
GRaND Raw data (L1a), Ceres GRaND (XMO3) (2.0 Gb) DWNC3GRD_1A Download (798 Mb)
GRaND Raw data (L1a), Ceres Opposition (XMO4) (2.5 Gb) DWNC4GRD_1A Download (989 Mb)



Calibrated Data (Level 1b)

The GRaND Reduced Data Records (RDR) contain a time series of calibrated spectra, counting data, and ephemeris, pointing, and geometry (EPG) data. The data set includes all L1b for the entire Ceres encounter through XMO4 (Opposition orbit).

Status: Archived
Data set: Browse: Download:
GRaND calibrated data (L1b), All Ceres (2.2 Gb) DWNCGRD_1B Download (347 Mb)



Level 2 Map Products

Status: Archived

This data set contains the Dawn Ceres high level map products including Water Equivalent Hydrogen (WEH) Map, Smoothed Water Equivalent Hydrogen (WEH) Map, Thermal & Epithermal Neutron Counts Map, Iron Concentration Map, and Iron Gamma Counts Map. These maps have been generated from the GRaND L1B data taken during the Ceres Low Altitude Mapping Orbit phase of the Dawn mission.

Data set: Browse: Download:
GRaND Ceres Maps DWNCGRD_2 Download (106 Mb)


Superseded:

Data set: Browse: Download:
GRaND calibrated data (L1b), Ceres through HAMO (390 Mb) DWNCAGRD_1B Download (93 Mb)
GRaND calibrated data (L1b), Ceres through XMO2 (1.7 Gb) DWNCGRD_1B Download (270 Mb)




Return to Dawn Archive Page
Return to Main Archive Page