https://www.techtimes.com/articles/28990/20150128/asteroid-2004-bl86-has-its-own-moon-nasa-reveals.htm
Asteroid 2004 BL86 has Its Own Moon, NASA Reveals
Jan 28, 2015 - Based on radar images from the Deep Space Network antenna, asteroid 2004 BL86, which has just flown by in close proximity to our planet, has its own moon.
its ownasteroidmoonnasareveals
https://www.universetoday.com/articles/big-asteroid-2004-bl86-buzzes-earth-on-january-26-how-to-see-it-in-your-telescope
Big Asteroid 2004 BL86 Buzzes Earth on January 26: How to See it in Your Telescope - Universe Today