(85990) 1999 JV6

Asteroid April 2020 yes (85990) 1999 JV 6 #FFC2E0 1999JV6 Radar Jan12.jpg Radar images of 1999 JV 6 taken by the Goldstone Radar on 12 January 2015 LINEAR Lincoln Lab's ETS 13 May 1999 (85990) 1999 JV 6 ApolloNEOPHA 31 May 2020 (JD 2459000.5) 0 20.76 yr (7,582 days) 1.3219 AU 0.6946 AU 1.0082 AU 0.31110 1.01 yr 194.713° 0.9735876 ms / day 5.359° 124.318° 235.531° 0.03152 AU 0.451 0.026 km 6.538 h 0.095 0.023 Xk (SMASS) 20.2 (85990) 1999 JV 6 is a sub-kilometer near-Earth asteroid and a potentially hazardous object of the Apollo group. It was discovered by astronomers of the LINEAR program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico. 1999 JV 6 is a contact binary object consisting of two distinct lobes, as seen in radar images from various observatories including Arecibo and Goldstone in January 2015. Close approaches left|thumb|Radar images of 1999 JV 6 taken by the Goldstone Radar on 9 January 2015 In January 2015, 1999 JV 6 approached Earth within a distance of 0.0833 AU LD flip in. During the encounter, 1999 JV 6 was observed by radar from the Arecibo, Green Bank, and Goldstone observatories. In January 2016, 1999 JV 6 has made another close approach at a distance of 0.032 AU LD flip, several times closer than the encounter in 2015. The Minor Planet Center has classified 1999 JV 6 as a potentially hazardous asteroid due to its large size and small Earth minimum orbit intersection distance (MOID) of 0.03 AU.Rożek A. Lowry S. C. Nolan M. C. Taylor P. A. Benner L. a. M. Fitzsimmons A. Zegmott T. J. Weissman P. R. Green S. F. Rozitis B. Snodgrass C. 2019-11-01 Shape model and spin-state analysis of PHA contact binary (85990) 1999 JV6 from combined radar and optical observations https://www.aanda.org/articles/aa/abs/2019/11/aa36302-19/aa36302-19.html Astronomy & Astrophysics en 631 A149 10.1051/0004-6361/201936302 0004-6361 free 10150/641764 free Physical characteristics 1999 JV 6 was discovered in May 1999 by the Lincoln Near-Earth Asteroid Research (LINEAR) program at the Lincoln Laboratory's Experimental Test Site near Socorro, New Mexico. Most properties of 1999 JV 6 have been determined through photometry, spectroscopy, infrared radiometry, and radar imaging.https://echo.jpl.nasa.gov/asteroids/1999JV6/1999JV6_planning.v2.html Goldstone Radar Observations Planning: 1999 JV6, 2001 WL15, and Toro echo.jpl.nasa.gov 2020-04-29 Binzel et al. (2001) have found that 1999 JV 6 has a spectral class of an Xk-type asteroid. Thermal infrared observations using the WISE spacecraft by Mainzer et al. (2011) and the Spitzer Space Telescope by Mueller et al. (2011) give a diameter of 0.45 km mi. Warner et al. (2014, 2015) suggest that 1999 JV 6 has a highly elongated shape due to its large light curve amplitude of 0.9 magnitudes. Based on 1999 JV 6's large brightness changes, they measured a rotation period of 6.54 hours. In January 2015, radar imaging by the Arecibo Observatory and the Green Bank Observatory confirmed 1999 JV 6's elongated shape and provided delay-Doppler images used to obtain a preliminary estimate of a 3D model for its shape. The radar data reveal an apparent concavity and suggest that 1999 JV 6 is a contact binary. References 2020-02-14 last obs. JPL Small-Body Database Browser: 85990 (1999 JV6) https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2085990 Jet Propulsion Laboratory 15 February 2020 30 April 2020 (85990) = 1999 JV6 https://minorplanetcenter.net/db_search/show_object?object_id=85990 Minor Planet Center International Astronomical Union 30 April 2020 External links Goldstone Radar Observations Planning: 1999 JV6, 2001 WL15, and Toro, JPL Asteroid Radar Research 3D model of the asteroid 85990 85990 1999JV6 (85989) 1999 JD6 85990 (85990) 1999 JV 6 085990 085990 085990 085990 085990 Category:Minor planets discovered in 1999