Keith M Groves, Boston College, Institute for Scientific Research, Chestnut Hill, MA, United States, Charles Carrano, Boston College, Institute for Scientific Research, Newton, United States, Larisa P Goncharenko, MIT, Pepperell, MA, United States, Anthea Coster, MIT Haystack Observatory, Westford, MA, United States, Sergey V Sokolovskiy, UCAR, Boulder, CO, United States and Toshi Nishimura, Boston University, Boston, United States