1. Department of Atmospheric and Oceanic Sciences University of California Los Angeles California USA
2. University Corporation for Atmospheric Research Boulder Colorado USA
3. Space Science and Applications Group Los Alamos National Laboratory Los Alamos New Mexico USA
4. Space Sciences Division New Mexico Consortium Los Alamos New Mexico USA
5. Space Department The Johns Hopkins University Applied Physics Laboratory Laurel Maryland USA
6. Department of Physics and Astronomy University of Iowa Iowa City Iowa USA