1. Member of the Laboratory for Extraterrestrial Physics at NASA/Goddard Space Flight Center, Greenbelt, Maryland 20771, and is Project Scientist for ISEE-A
2. Member of the Laboratory for High Energy Astrophysics at Goddard and is Project Scientist for ISEE-C
3. Member of the Space Science Department, European Space Agency, European Space Research and Technology Centre, Noordwijk, Netherlands, and is Project Scientist for ISEE-B