Michele T. Bannister, J. J. Kavelaars, Jean Marc Petit, Brett J. Gladman, Stephen D.J. Gwyn, Ying Tung Chen, Kathryn Volk, Mike Alexandersen, Susan D. Benecchi, Audrey Delsanti, Wesley C. Fraser, Mikael Granvik, Will M. Grundy, Aurélie Guilbert-Lepoutre, Daniel Hestroffer, Wing Huen Ip, Marian Jakubik, R. Lynne Jones, Nathan Kaib, Catherine F. KavelaarsPedro Lacerda, Samantha Lawler, Matthew J. Lehner, Hsing Wen Lin, Tim Lister, Patryk Sofia Lykawka, Stephanie Monty, Michael Marsset, Ruth Murray-Clay, Keith S. Noll, Alex Parker, Rosemary E. Pike, Philippe Rousselot, David Rusk, Megan E. Schwamb, Cory Shankman, Bruno Sicardy, Pierre Vernazza, Shiang Yu Wang

Research output: Contribution to journalReview articlepeer-review

84 Scopus citations


We report the discovery, tracking, and detection circumstances for 85 trans-Neptunian objects (TNOs) from the first 42 deg2 of the Outer Solar System Origins Survey. This ongoing r-band solar system survey uses the 0.9 deg2 field of view MegaPrime camera on the 3.6 m Canada-France-Hawaii Telescope. Our orbital elements for these TNOs are precise to a fractional semimajor axis uncertainty <0.1%. We achieve this precision in just two oppositions, as compared to the normal three to five oppositions, via a dense observing cadence and innovative astrometric technique. These discoveries are free of ephemeris bias, a first for large trans-Neptunian surveys. We also provide the necessary information to enable models of TNO orbital distributions to be tested against our TNO sample. We confirm the existence of a cold "kernel" of objects within the main cold classical Kuiper Belt and infer the existence of an extension of the "stirred" cold classical Kuiper Belt to at least several au beyond the 2:1 mean motion resonance with Neptune. We find that the population model of Petit et al. remains a plausible representation of the Kuiper Belt. The full survey, to be completed in 2017, will provide an exquisitely characterized sample of important resonant TNO populations, ideal for testing models of giant planet migration during the early history of the solar system.

Original languageEnglish
Article number70
JournalAstronomical Journal
Issue number3
StatePublished - Sep 2016


  • Kuiper Belt: general
  • surveys


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  • Outer Solar System Origins Survey (OSSOS). I.

    Bannister, M. T. (Creator), Kavelaars, J. J. (Creator), Petit, J.-M. (Creator), Gladman, B. J. (Creator), Gwyn, S. D. J. (Contributor), Chen, Y.-T. (Creator), Volk, K. (Creator), Alexandersen, M. (Creator), Benecchi, S. D. (Creator), Delsanti, A. (Creator), Fraser, W. C. (Creator), Granvik, M. (Creator), Grundy, W. M. (Creator), Guilbert-Lepoutre, A. (Creator), Hestroffer, D. (Creator), Ip, W.-H. (Creator), Jakubik, M. (Creator), Lynne, J. R. (Contributor), Kaib, N. (Creator), Kavelaars, C. F. (Creator), Lacerda, P. (Creator), Lawler, S. (Creator), Lehner, M. J. (Creator), Lin, H. W. (Creator), Lister, T. (Creator), Lykawka, P. S. (Creator), Monty, S. (Creator), Marsset, M. (Creator), Murray-Clay, R. (Creator), Noll, K. S. (Creator), Parker, A. (Creator), Pike, R. E. (Creator), Rousselot, P. (Creator), Rusk, D. (Creator), Schwamb, M. E. (Creator), Shankman, C. (Creator), Sicardy, B. (Creator), Vernazza, P. (Creator) & Wang, S.-Y. (Creator), Centre de Donnees Strasbourg (CDS), 2017


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