Orbit and bulk density of the OSIRIS-REx target Asteroid (101955) Bennu

  title={Orbit and bulk density of the OSIRIS-REx target Asteroid (101955) Bennu},
  author={Steven R. Chesley and Davide Farnocchia and Michael C. Nolan and David Vokrouhlick{\'y} and Paul W. Chodas and Andrea Milani and Federica Spoto and Benjamin Rozitis and Lance A. M. Benner and William F. Bottke and Michael. W. Busch and Joshua P. Emery and Ellen S. Howell and Dante S. Lauretta and Jean-Luc Margot and Patrick A. Taylor},

The OSIRIS-REx asteroid sample return mission

In September of 2016, the OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, Security, Regolith EXplorer) spacecraft will depart for asteroid (101955) Bennu, and when it does,

The OSIRIS-REx Radio Science Experiment at Bennu

The OSIRIS-REx mission will conduct a Radio Science investigation of the asteroid Bennu with a primary goal of estimating the mass and gravity field of the asteroid. The spacecraft will conduct

OSIRIS-REx: Sample Return from Asteroid (101955) Bennu

In May of 2011, NASA selected the Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer (OSIRIS-REx) asteroid sample return mission as the third mission in the New


The OSIRIS-REx mission Navigation Campaign consists of three sub-phases: Approach, Preliminary Survey, and Orbital A. Approach was designed for initial characterization of Bennu while matching

Sensitivity Analysis of the OSIRIS-REx Terminator Orbits to Maneuver Errors

OSIRIS-REx is NASA’s asteroid sample return mission that was launched in September of the year 2016 to Asteroid (101955) Bennu. The nominal orbit that is considered for large parts of the science

Recovery of Bennu’s orientation for the OSIRIS-REx mission: implications for the spin state accuracy and geolocation errors

A comprehensive simulation with the NASA GSFC GEODYN orbit determination and geodetic parameter estimation software finds that with no wobble present, all the geolocation requirements are met and the recovery is still reliable thanks to the combined use of altimetry and imagery data.

The OSIRIS‐REx target asteroid (101955) Bennu: Constraints on its physical, geological, and dynamical nature from astronomical observations

We review the results of an extensive campaign to determine the physical, geological, and dynamical properties of asteroid (101955) Bennu. This investigation provides information on the orbit, shape,



Thermal infrared observations of the Hayabusa spacecraft target asteroid 25143 Itokawa

We obtained N - and Q -band observations of the Apollo-type asteroid 25143 Itokawa during its close Earth approach in July 2004 with TIMMI2 at the ESO 3.6 m telescope. Our photometric measurement, in

Physical properties of OSIRIS-REx target asteroid (101955) 1999 RQ36 - Derived from Herschel, VLT/ VISIR, and Spitzer observations

In September 2011, the Herschel Space Observatory performe d an observation campaign with the PACS photometer observin g the asteroid (101955) 1999 RQ 36 in the far infrared. The Herschel

Radar and infrared observations of binary near-Earth Asteroid 2002 CE26


Near-Earth asteroid (NEA) 101955 (1999 RQ36; henceforth RQ36) is especially accessible to spacecraft and is the primary target of NASA's OSIRIS-REx sample return mission; it is also a potentially

Asteroid and comet orbits using radar data

For the 30 asteroids and 4 comets for which radar astrometric data were given by Ostro (1991), orbits have been computed using both the radar and the existing optical measurements. The techniques

Asteroid 1950 DA's Encounter with Earth in 2880: Physical Limits of Collision Probability Prediction

Integration of the orbit of asteroid (29075) 1950 DA, which is based on radar and optical measurements spanning 51 years, reveals a 20-minute interval in March 2880 when there could be a

Near Earth Asteroids with measurable Yarkovsky effect

Estimating the mass of asteroid 253 mathilde from tracking data during the NEAR flyby

The terminal navigation of the Near Earth Asteroid Rendezvous (NEAR) spacecraft during its close flyby of asteroid 253 Mathilde involved coordinated efforts to determine the heliocentric orbits of