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

  title={Physical properties of OSIRIS-REx target asteroid (101955) 1999 RQ36 - Derived from Herschel, VLT/ VISIR, and Spitzer observations},
  author={Thomas G. Mueller and Laurence O'Rourke and Antonella Barucci and Andr{\'a}s P{\'a}l and Cs. P. Kiss and Peter Zeidler and Bruno Altieri and B. M. Gonz{\'a}lez-Garc{\'i}a and Michael Kueppers},
  journal={Astronomy and Astrophysics},
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 observations were analyse d, together with ESO VLT-VISIR and Spitzer-IRS data, by means of a thermophysical model in orde r to derive the physical properties of 1999 RQ 36. We find the asteroid has an e ffective diameter in the range 480 to 511 m, a slightly elongate d shape with a semi-major axis ratio of a… 

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