Bright object lit up Colombian sky on Dec 16

During the first hours of the night of December 16 in Colombia, many inhabitants of the East of the country sighted what appears to be a large fireball. Numerous photographies and videos taken mainly with smartphones have been published by witnesses who were surprised by the event that happened around 18:25 local time (23:25 UT).

[embed]https://twitter.com/alejogomez75/status/809932276192649216[/embed]

The object was observed at least from Yopal, Villavicencio, Bucaramanga, Girón, and Zapatoca cities in Colombia; but apparently it was also observed from some western localities of Venezuela.

Many witnesses noticed the intense green-bluish color of the bolide which could be seen even under the public street lightning system. Another interesting aspect was its duration: the event was observable for more than 30 seconds! From the currently received information, it's difficult to be sure whether the event was associated to a low atmospheric entry velocity meteoroid, or a space junk that entered the atmosphere above those regions. Further investigations should soon help us in better defining what was involved in this remarkable phenomenon.