(13366) 1998 US24

Trojan asteroid July 2018 yes (13366) 1998 US 24 #C2FFFF LONEOS Anderson Mesa 18 October 1998 (13366) 1998 US 24 1996 RX 29 Jupiter trojanGreekbackground 23 March 2018 (JD 2458200.5) 0 64.27 yr (23,476 d) 5.7685 AU 4.6895 AU 5.2290 AU 0.1032 11.96 yr (4,367 d) 193.23° 0.0824 ms / day 6.6365° 96.296° 355.47° 0.3771 AU 2.9760 33.30 2.87 km 400 105 h 0.058 0.016 C (assumed) 11.1011.211.3 (13366) 1998 US 24 is a Jupiter trojan from the Greek camp, approximately 33 km mi off 2 us in diameter. It was discovered on 18 October 1998, by astronomers with the Lowell Observatory Near-Earth-Object Search at the Anderson Mesa Station near Flagstaff, Arizona, in the United States. The dark Jovian asteroid is a slow rotator with a long rotation period of potentially 400 hours. It has not been named since its numbering in January 2000.March 2026 Naming Orbit and classification 1998 US 24 is a dark Jovian asteroid in a 1:1 orbital resonance with Jupiter. It is located in the leading Greek camp at the Gas Giant's Lagrangian point, 60° ahead of its orbit (see Trojans in astronomy). It is also a non-family asteroid in the Jovian background population. It orbits the Sun at a distance of 4.7–5.8 AU once every 11 years and 12 months (4,367 days; semi-major axis of 5.23 AU). Its orbit has an eccentricity of 0.10 and an inclination of 7° with respect to the ecliptic. The body's observation arc begins with a precovery taken at Palomar Observatory in February 1954, more than 44 years prior to its official discovery observation at Anderson Mesa. Numbering and naming This minor planet was numbered by the MPC on 24 January 2000 (M.P.C. 37586). As of 2018, it has not been named. Physical characteristics 1998 US 24 is an assumed C-type asteroid, while most larger Jupiter trojans are D-types. Rotation period In August 2015, a first rotational lightcurve of 1998 US 24 was obtained from photometric observations by the Kepler space telescope during its K2 mission. Lightcurve analysis gave a rotation period of 400 105 hours with a brightness variation of 0.23 magnitude (U=2-). One month later, a second, lower-rated lightcurve by Kepler determined an alternative period of 522 36 hours with an amplitude of 0.20 (U=1+). As of 2018, no secure period of this slow rotator has yet been obtained. Diameter and albedo According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, 1998 US 24 measures 33.30 kilometers in diameter and its surface has an albedo of 0.058, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 32.03 kilometers based on an absolute magnitude of 11.2. References 30em 2018-05-21 last obs. JPL Small-Body Database Browser: 13366 (1998 US24) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2013366 Jet Propulsion Laboratory 4 July 2018 13366 (1998 US24) Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=13366 4 July 2018 List of Jupiter Trojans Minor Planet Center V. Carruba 1 July 2018 https://www.minorplanetcenter.net/iau/lists/JupiterTrojans.html 4 July 2018 MPC/MPO/MPS Archive Minor Planet Center https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html 4 July 2018 T. Grav A. K. Mainzer J. M. Bauer J. R. Masiero C. R. Nugent November 2012 WISE/NEOWISE Observations of the Jovian Trojan Population: Taxonomy The Astrophysical Journal 759 1 10 2012ApJ...759...49G 10.1088/0004-637X/759/1/49 1209.1549 119101711 (online catalog) Asteroid (13366) 1998 US24 – Proper Elements AstDyS-2, Asteroids – Dynamic Site https://newton.spacedys.com/astdys/index.php?n=13366&pc=1.1.6 4 July 2018 13366 4 July 2018 Erin Lee Ryan Benjamin N. L. Sharkey Charles E. Woodward March 2017 Trojan Asteroids in the Kepler Campaign 6 Field The Astronomical Journal 153 3 12 2017AJ....153..116R 10.3847/1538-3881/153/3/116 125570438 free 6 Gy. M. Szabó A. Pál Cs. Kiss L. L. Kiss L. Molnár O. Hanyecz E. Plachy K. Sárneczky R. Szabó March 2017 The heart of the swarm: K2 photometry and rotational characteristics of 56 Jovian Trojan asteroids Astronomy and Astrophysics 599 13 2017A&A...599A..44S 10.1051/0004-6361/201629401 1609.02760 119275951 External links Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Discovery Circumstances: Numbered Minor Planets (10001)-(15000) – Minor Planet Center Asteroid (13366) 1998 US24June 2026 InternetArchiveBot at the Small Bodies Data Ferret 13366 2013366 13365 Tenzinyama 13366 (13366) 1998 US 24 13367 Jiří 013366 013366 013366 19981018