Early navigation performance of the OSIRIS-REx approach to Bennu


Research output: Chapter in Book/Report/Conference proceedingConference contribution

10 Scopus citations


The New Frontiers-class OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security-Regolith Explorer) mission is the first American endeavor to return a sample from an asteroid. In preparation for retrieving the sample, OSIRIS-REx is conducting a campaign of challenging proximityoperations maneuvers and scientific observations, bringing the spacecraft closer and closer to the surface of near-Earth asteroid (101955) Bennu. Ultimately, the spacecraft will enter a 900-meter-radius orbit about Bennu and conduct a series of reconnaissance flybys of candidate sample sites before being guided into contact with the surface for the Touch and Go sample collection event. Between August and December 2018, the OSIRIS-REx team acquired the first optical observations of Bennu and used them for navigation. We conducted a series of maneuvers with the main engine, Trajectory Correction Maneuver, and Attitude Control System thruster sets to slow the OSIRIS-REx approach to Bennu and achieve rendezvous on December 3, 2018. This paper describes the trajectory design, navigation conops, and key navigation results from the Approach phase of the OSIRIS-Rex mission.

Original languageEnglish (US)
Title of host publicationGuidance, Navigation, and Control, 2019
EditorsHeidi E. Hallowell
PublisherUnivelt Inc.
Number of pages20
ISBN (Print)9780877036616
StatePublished - 2019
Event42nd AAS Rocky Mountain Section Guidance and Control Conference, 2019 - Breckenridge, United States
Duration: Jan 31 2019Feb 6 2019

Publication series

NameAdvances in the Astronautical Sciences
ISSN (Print)0065-3438


Conference42nd AAS Rocky Mountain Section Guidance and Control Conference, 2019
Country/TerritoryUnited States

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


Dive into the research topics of 'Early navigation performance of the OSIRIS-REx approach to Bennu'. Together they form a unique fingerprint.

Cite this