NUMBER@1 ° Mean anomaly -LRB- M -RRB- NUMBER@2 ° NUMBER@3 ORGANIZATION@1 -LRB- -RRB- is a large asteroid , which may have been involved in one of the more massive asteroid-asteroid collisions of the past NUMBER@4 million years .

NUMBER@1 ° Mean anomaly -LRB- M -RRB- NUMBER@2 ° NUMBER@3 ORGANIZATION@1 is a big asteroid , which may have been involved in one of the more huge asteroid-asteroid collisions of the past NUMBER@4 million years .
