2001 AV43

Very small monolithic asteroid and fast rotator February 2018 yes #FFC2E0 2001 AV 43 LINEAR Lincoln Laboratory ETS 5 January 2001 2001 AV 43 NEOApollo 21 November 2025 (JD 2461000.5) 0 13.23 yr (4,834 d) 1.5928 AU 0.9744 AU 1.2836 AU 0.2409 1.45 yr (531 d) 82.580° 0.6777 ms / day 0.2007° 20.528° 51.279° 0.0017 AU0.66 LD 0.03 km (derived) 0.1701 h (612 s) 0.20 (assumed) S (assumed) 24.624.9 2001 AV 43 is a very small, monolithic asteroid and fast rotator, classified as a near-Earth object of the Apollo group, approximately 30 m ft off us in diameter. It was first observed on 5 January 2001, by astronomers of the LINEAR program at Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico, in the United States. The presumed S-type asteroid has a rotation period of only 10 minutes. It has an exceptionally low MOID of 0.66 lunar distance (LD) and will approach Earth at 0.81 LD on 11 November 2029. Orbit and classification 2001 AV 43 is a member of the dynamical Apollo group, which are Earth-crossing asteroids. Apollo asteroids are the largest subgroup of near-Earth objects. Unlike many Apollo asteroids, this asteroid is not a Mars-crosser, as its aphelion is smaller than the orbit of the Red Planet at 1.66 AU. This asteroid orbits the Sun at a distance of 0.97–1.59 AU once every 17 months (531 days; semi-major axis of 1.28 AU). Its orbit has an eccentricity of 0.24 and an inclination of 0° with respect to the ecliptic. The body's observation arc begins with a precovery found in ESO's Astrovirtel data archive I03, in August 2000, less than 5 months prior to its official discovery observation at Socorro. Close approaches 2001 AV 43 has an Earth minimum orbital intersection distance of 0.0017 AU km on off 3, which translates into 0.7 lunar distances (LD). Due to its small size, that is, an absolute magnitude fainter than 22, this asteroid is not classified as a potentially hazardous asteroid. On 18 November 2013, the asteroid passed Earth at 2.7 LD. The angle of approach made it a good target for radar observations. On 11 November 2029, the orbit of 2001 AV 43 is predicted to bring the asteroid within a nominal distance of 0.00209 AU km mi on off or 0.81 LD of Earth. It will also pass the Moon at an even shorter nominal distance of 0.00166 AU km mi on off Physical characteristics 2001 AV 43 is an assumed stony S-type asteroid. Rotation period A rotational lightcurve of 2001 AV 43 was obtained from photometric observations by American astronomers Robert J. Whiteley, Carl Hergenrother and David Tholen. Lightcurve analysis gave a rotation period of 0.1701 hours (612 second) with a brightness amplitude of 0.26 magnitude (U=2). With such a short period, it is a notable fast rotator. The observers classified it as a "monolithic fast-rotating asteroid" (MFRA). Diameter and albedo The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and derives a diameter of 0.03 kilometers based on an absolute magnitude of 24.9. Numbering and naming As of 2018, this minor planet has neither been numbered nor named. References 30em 2013-11-24 last obs. JPL Small-Body Database Browser: (2001 AV43) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=3067828 Jet Propulsion Laboratory 2 November 2018 2001 AV43 Minor Planet Center https://www.minorplanetcenter.net/db_search/show_object?object_id=2001+AV43 2 November 2018 Jim Borg Asteroid to make 'close' pass to Earth on Monday http://www.staradvertiser.com/2013/11/16/breaking-news/asteroid-to-make-close-pass-to-earth-on-monday/ Star Advertiser 16 November 2013 2001 AV43 24 January 2018 R. J. Whiteley C. W. Hergenrother D. J. Tholen November 2002 Monolithic fast-rotating asteroids http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2002ESASP.500..473W Proceedings of Asteroids 500 473–480 2002ESASP.500..473W 24 January 2018 External links Table of Asteroids Next Closest Approaches to the Earth, Sormano Astronomical Observatory Asteroid Lightcurve Database (LCDB), query form (info https://web.archive.org/web/20171216050541/http://www.minorplanet.info/lightcurvedatabase.html 16 December 2017 ) Asteroids and comets rotation curves, CdR https://web.archive.org/web/20160729213840/http://obswww.unige.ch/~behrend/page_cou.html 29 July 2016 – Observatoire de Genève, Raoul Behrend Forthcoming Close Approaches To The Earth – Minor Planet Center 2001AV43 2001AV43 # Category:Minor planet object articles (unnumbered) # # # 20010105