1999 XS35

Near-Earth asteroid September 2020 yes #FFC2E0 1999 XS 35 Damocloid-99XS35.png The comet-like orbit of 1999 XS 35 LONEOS 2 December 1999 1999 XS 35 PHAApollo 21 November 2025 (JD 2461000.5) 5 34.690 AU Tm on on(beyond Neptune) 0.93889 AU Gm on 17.815 AU Tm on 0.94730 75.19 yr (27464 d) 19.608° 48.816° 124.72° 0.013108 ms /day (n) 333.27° 0.00018624 AU Gm on 1.409 1.3 km (est. at 0.14) 13.7 to 32 17.69 1999 XS 35 is a near-Earth object discovered in 1999 having a comet-like orbit. Its semi-major axis is 17.8 AU. Its orbital eccentricity is 0.94, which means that at the perihelion 1999 XS 35 comes as close as 0.9 AU to the Sun, while at the aphelion it reaches beyond the orbit of Neptune. 1999 XS 35 is a damocloid. 1999 XS 35 is a small object with an absolute magnitude (H) of 17.2, which implies a size of about 1 km. 1999 XS 35 came to perihelion on 21 October 1999, passed 0.0453 AU km mi on on from Earth on 5 November 1999, and was discovered on 2 December 1999 at about apparent magnitude 16.9. References MPEC 1999-X19 : 1999 XS35 IAU Minor Planet Center 9 December 1999 https://www.minorplanetcenter.net/iau/mpec/J99/J99X19.html 18 April 2012 last observation: 2000-02-28; arc: 88 days; uncertainty: 4 JPL Small-Body Database Browser: (1999 XS35) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1999XS35 Jet Propulsion Laboratory 29 March 2016 Asteroid Size Estimator CNEOS NASA/JPL https://cneos.jpl.nasa.gov/tools/ast_size_est.html 8 September 2020 last observation: 2000-02-28; arc: 88 days; uncertainty: 4 JPL Close-Approach Data: (1999 XS35) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1999XS35;cad=1#cad 18 April 2012 Fernández Yanga R. Asteroids with Comet-Like Orbits: Elements and Positions 30 May 2010 http://www.physics.ucf.edu/~yfernandez/lowtj.html 2010 https://web.archive.org/web/20100605203117/http://www.physics.ucf.edu/~yfernandez/lowtj.html 5 June 2010 live External links 1999+XS35 1999XS35 3024715 # Category:Damocloids Category:Minor planet object articles (unnumbered) # 19991202