(66391) 1999 KW4 a Potential Hazardous Asteroid (PHA) with a MOID of 0.0131 AU,
reaching a minimum distance of 5.2 million km on 26 May 2019 (see MBPL List
VLT observes (66391) 1999 KW4 confirming it as double asteroid.
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Web Curators: F. Manca, M. Carpino
Last modified: June 05, 2019