UPDATE 1: April 19 - Estimates of the size and rotation period have been adjusted since an earlier draft of this press release.
UPDATE 2: April 20 - Observations on April 19 show the largest dimension of the body is at least 870 meters, significantly longer than the visible extent seen on April 17.
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 proximi...Read more from this release