This allowed a reasonably precise orbit determination, and as a result it was spotted again on 27 February 2001 and 21 January 2002.
The asteroid would be hot enough to incandesce red being above the Draper Point at closest approach.
2000 BD19 is considered a good candidate for measuring the effects of Albert Einstein's general theory of relativity because of how close it comes to the Sun.
[6] 2000 BD19 shares noticeable orbit similarities with two other low-perihelion asteroids: (425755) 2011 CP4 and 1995 CR, their longitude of perihelion differing by only 9.9 and 7.1 degrees, respectively.
Combined with their similar semimajor axis (average distance from the Sun) of 0.877, 0.911, and 0.907 astronomical units respectively, they could possibly be fragments of 2000 BD19 that separated from it in the past.