1. a Center for Space Research (CSR) , The University of Texas at Austin , 3925 W. Braker Lane, Ste. 200, Austin, TX 78759
2. b Northrop Grumman Space Technology (NGST) , NPOESS System Engineering , Modeling & Simulations , One Space Park , Redondo Beach, CA 90245
3. c Department of Atmospheric and Oceanic Sciences , University of California Los Angeles , 405 Hilgard Avenue, 7127 Math Sciences Bldg, Los Angeles, CA 90095‐1565