(613490) 2006 RJ103

Neptune trojan January 2022 yes (613490) 2006 RJ 103 #C7FF8F 12 September 2006 Sloan Digital Sky Srvy. Apache Point Obs. (613490) 2006 RJ 103 Neptune trojan centaur distant 4 September 2017 (JD 2458000.5) 3 14.15 yr (5,169 days) 30.862 AU 28.988 AU 29.925 AU 0.0313 163.70 yr (59,793 days) 251.55° 0.0060 ms / day 8.1641° 120.86° 33.563° 130 km (est. at 0.10) 180 km 22.0 7.5 (613490) 2006 RJ 103 is a Neptune trojan, first observed by the Sloan Digital Sky Survey Collaboration at Apache Point Observatory, New Mexico, on 12 September 2006. It was the fifth and largest such body discovered, approximately 180 kilometers in diameter. 2016, it is 30.3 AU from Neptune. Orbit and classification Neptune trojans are resonant trans-Neptunian objects in a 1:1 mean-motion orbital resonance with Neptune. These trojans have a semi-major axis and an orbital period very similar to Neptune's (30.10 AU; 164.8 years). 2006 RJ 103 belongs to the leading group, which follow 60° ahead Neptune's orbit. It orbits the Sun with a semi-major axis 29.925 AU of at a distance of 29.0–30.9 AU once every 163 years and 8 months (59,793 days). Its orbit has an eccentricity of 0.03 and an inclination of 8° with respect to the ecliptic. Physical characteristics The discoverers estimate that 2006 RJ 103 has a mean-diameter of 180 kilometers based on a magnitude of 22.0. Based on a generic magnitude-to-diameter conversion, it measures approximately 130 kilometers in diameter using an absolute magnitude of 7.5 with an assumed albedo of 0.10. Ground-based and James Webb Space Telescope spectroscopy have shown that 2006 RJ 103 lacks clear signatures of water ice. Instead, its surface is covered by hydrated minerals that have 0.7 and 3.0 micron absorption features.Sharkey Benjamin N. L. Reddy Vishnu Kuhn Olga Sanchez Juan A. Bottke William F. 2023-11-01 Spectroscopic Links among Giant Planet Irregular Satellites and Trojans The Planetary Science Journal 4 11 223 10.3847/PSJ/ad0845 free 2310.19934 2023PSJ.....4..223S 2632-3338Belyakov Matthew Brown Michael E. 2025-04-01 Saturnian Irregular Satellites as a Probe of Kuiper Belt Surface Evolution The Planetary Science Journal 6 4 97 10.3847/PSJ/adc55d free 2503.20046 2025PSJ.....6...97B 2632-33382310.03998 Markwardt Larissa Holler Bryan J. Hsing Wen Lin Gerdes David W. Adams Fred C. Malhotra Renu Napier Kevin J. First Near-IR Spectroscopic Survey of Neptune Trojans with JWST: Distinct Surface Compositions of Red vs Ultra-Red Neptune Trojans 2023 astro-ph.EP Numbering and naming This minor planet was 613490 numbered by the Minor Planet Center on 28 March 2022 (M.P.C. 139905). If named, it will follow the naming scheme already established with 385571 Otrera, which is to name these objects after figures related to the Amazons, an all-female warrior tribe that fought in the Trojan War on the side of the Trojans against the Greek.https://www.iau.org/static/science/scientific_bodies/working_groups/97/wg-sbn-triennial-report-2015-2018.pdf DIVISION F / Working Group for Small Body Nomenclature Working Group for Small Body Nomenclature. THE TRIENNIAL REPORT (2015 Sept 1 – 2018 Feb 15) 10 April 2018 25 August 2018 IAU Ticha, J. etal 25 August 2018 https://web.archive.org/web/20180825143250/https://www.iau.org/static/science/scientific_bodies/working_groups/97/wg-sbn-triennial-report-2015-2018.pdf dead References 2016-02-04 last obs. JPL Small-Body Database Browser: (2006 RJ103) http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3358674 Jet Propulsion Laboratory 5 August 2017 2006 RJ103 Minor Planet Center http://www.minorplanetcenter.net/db_search/show_object?object_id=2006+RJ103 5 August 2017 List of Neptune Trojans Minor Planet Center 10 July 2017 http://www.minorplanetcenter.org/iau/lists/NeptuneTrojans.html 4 August 2017 Asteroid Size Estimator CNEOS/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 4 August 2017 Lakdawalla Emily 2008 LC15, the first Trojan asteroid discovered in Neptune's L5 point 13 August 2010 The Planetary Society http://www.planetary.org/blogs/emily-lakdawalla/2010/2623.html 4 August 2017 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html External links AstDys-2 about 2006 RJ 103 2006RJ103 3358674 613490 (613490) 2006 RJ 103 613490 20060912