Asteroid 2004 BL86 passed Earth on Jan. 26, 2015 at 16:19 UTC (11:19am EST). This "movie" of the asteroid was generated from radar data collected on that date by NASA's Deep Space Network antenna at Goldstone, California. Twenty individual images were used.
Radar observations allow scientists to better measure an asteroid's size, rotation and location. As a bonus, radar observations of 2004 BL86 detected a tiny moon orbiting the asteroid.
Tagged under: NASA (Spacecraft Manufacturer),Jet Propulsion Laboratory (Spacecraft Manufacturer),JPL (Business Operation),Radar (Invention),Goldstone Deep Space Communications Complex (Location),Moon (Celestial Object With Coordinate System),(357439) 2004 BL86,asteroid,Near Earth Object,Near Earth Asteroid,Astronomy (Field Of Study)
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