Columbia, MD and Puerto Rico—April 18, 2017. The Arecibo Observatory in Puerto Rico this week observed potentially hazardous near-Earth asteroid 2014 JO25 as part of its planetary radar program sponsored by NASA’s Near-Earth Object Observations (NEOO) program. Arecibo radar observations revealed that the asteroid is twice as big as was previously thought and has a lumpy, peanut shape.
2014 JO25 was discovered in May 2014 by the Catalina Sky Survey and designated a potentially hazardous asteroid based on its size and relative proximity to Earth. Prior to accurate radar measurements, its diameter was estimated using data from the NEOWISE spacecraft to be 650 meters (2130 feet), more than twice the size of the Arecibo telescope's reflector. The Arecibo Observatory Planetary Radar system, which is the most sensitive and the most ac...Read more from this release