OSIRIS-REx Asteroid Astronomy Data Archive

The OSIRIS-REx Asteroid Astronomy Data Archive is a group of data products that quantify the astrometric and photometric properties of asteroid Bennu observed as a point source by the OCAMS instruments during the Approach Phase of the mission. Had natural satellites been found orbiting Bennu, this data bundle would have contained data products that characterize the satellites orbital elements and photometric properties. However, no natural satellites were found during the Approach mission phase. This bundle use algorithms and software defined and developed by the Asteroid Astronomy Working Group to produce the following data products: asteroid light curves, asteroid phase functions, and asteroid dust maps. 
The Asteroid Astronomy derived data products are created from OSIRIS-REx Camera Suite (OCAMS) MapCam calibrated images, the photometric correction models for the MapCam images, standard astrometric and photometric star catalogs, Bennu and spacecraft ephemerides, and standard geometric SPICE information. OCAMS PolyCam calibrated images are used for dust plume searching. Additional information about the OCAMS instrument and calibrated images can be found in the OCAMS Uncalibrated/Calibrated Data Product Software Interface Specification.

This bundle contains the following collections:

data: Contains tabular and fits data surrounding light curves, phase function observations, and dust search observations.

document: Contains three .pdf documents: the Asteroid Astronomy Users Guide and natural satellite search figure and an open access copy of Hergenrother et al., 2019.

This bundle was created by the OSIRIS-REx Science Team in collaboration with the OSIRIS-REx Science Operations and Processing Center (SPOC) and archived by the Small Bodies Node of the Planetary Data System.

Last Updated 2025-10-14.