ENSIKLOPEDIA Cari Tekan Enter untuk memulai pencarian cepat. Kembali ke Ensiklopedia Arsip Wikipedia Indonesia 1999 XS35 1999 XS35Near-Earth asteroid 1999 XS35The comet-like orbit of 1999 XS35Discovery[1]Discovered byLONEOSDiscovery date2 December 1999DesignationsMPC designation1999 XS35Minor planet categoryPHAApollo[2]Orbital characteristics[2]Epoch 21 November 2025 (JD 2461000.5)Uncertainty parameter 5Aphelion34.690 AU (5.1896 Tm)(beyond Neptune)Perihelion0.93889 AU (140.456 Gm)Semi-major axis17.815 AU (2.6651 Tm)Eccentricity0.94730Orbital period (sidereal)75.19 yr (27464 d)Mean anomaly124.72°Mean motion0° 0m 47.189s /day (n)Inclination19.608°Longitude of ascending node48.816°Argument of perihelion333.27°Earth MOID0.00018624 AU (0.027861 Gm)TJupiter1.409Physical characteristicsMean diameter1.3 km (est. at 0.14)[3]Apparent magnitude13.7 to 32Absolute magnitude (H)17.69[2] 1999 XS35 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 XS35 comes as close as 0.9 AU to the Sun, while at the aphelion it reaches beyond the orbit of Neptune.[2] 1999 XS35 is a damocloid. 1999 XS35 is a small object with an absolute magnitude (H) of 17.2, which implies a size of about 1 km.[4] 1999 XS35 came to perihelion on 21 October 1999,[2] passed 0.0453 AU (6,780,000 km; 4,210,000 mi) from Earth on 5 November 1999,[5] and was discovered on 2 December 1999 at about apparent magnitude 16.9.[1] References 1 2 "MPEC 1999-X19 : 1999 XS35". IAU Minor Planet Center. 9 December 1999. Retrieved 18 April 2012. 1 2 3 4 5 "JPL Small-Body Database Browser: (1999 XS35)" (last observation: 2000-02-28; arc: 88 days; uncertainty: 4). Jet Propulsion Laboratory. Retrieved 29 March 2016. ↑ "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 8 September 2020. ↑ Fernández, Yanga R. (2010). "Asteroids with Comet-Like Orbits: Elements and Positions". Archived from the original on 5 June 2010. Retrieved 30 May 2010. ↑ "JPL Close-Approach Data: (1999 XS35)" (last observation: 2000-02-28; arc: 88 days; uncertainty: 4). Retrieved 18 April 2012. External links 1999 XS35 at NeoDyS-2, Near Earth Objects—Dynamic Site Ephemerides · Observation prediction · Orbital info · MOID · Proper elements · Observational info · Close approaches · Physical info · Orbit animation 1999 XS35 at ESA–space situational awareness Ephemerides · Observations · Orbit · Physical properties · Summary 1999 XS35 at the JPL Small-Body DatabaseClose approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters vteSmall Solar System bodiesMinor planets Designation Groups List Moon Meanings of names Asteroid Active Asteroid belt Family Jupiter trojan Near-Earth Amors Apollos Atens Atiras Spectral types Distant minor planet Centaur Neptune trojan Damocloid Trans-Neptunian object Detached Kuiper belt Oort cloud Scattered disc Comets Extinct Great Halley-type Hyperbolic/Parabolic Long-period Lost Near-parabolic Periodic Sungrazing Other Cosmic dust Meteoroids Space debris Authority control databases JPL SBDBMPC
