NASA/Goddard Space Flight Center, NASA Headquarters Acquisition Branch, Code 210.H, Greenbelt, MD 20771

A -- DEEP SPACE SYSTEMS PROGRAM INCLUDING EUROPA ORBITER, PLUTO-KUIPER EXPRESS AND SOLAR PROBE SOL AO-99-OSS-04 DUE 060600 POC Dr. Madhulika Guhathakurta, Research Program Management Division, Phone (202) 358-1992, Fax (202) 358-3097, Email lika@tristang.gsfc.nasa.gov -- Nancy C. Jenkins, Program Support Assistant, Phone (202) 358-0342, Fax (202) 358-3097, Email njenkins@hq.nasa.gov WEB: Click here for the latest information about this notice, http://nais.msfc.nasa.gov/cgi-bin/EPS/bizops.cgi?gr=D&pin=04#AO-99-OSS-04. E-MAIL: Dr. Madhulika Guhathakurta, lika@tristang.gsfc.nasa.gov. The NASA Office of Space Science announces several important changes relevant to the proposal schedule and Program Scientist for the Solar Probe mission as solicited in the Deep Space Systems Announcement of Opportunity (AO) 99-OSS-04. These changes will be posted under the Amendments section for this AO at its Web site http://spacescience.nasa.gov/ao/99-oss-04/ on or about March 6, 2000. Questions specifically about the Solar Probe opportunity may be directed to the NASA Solar Probe Program Scientist: Dr. Madhulika Guhathakurta Research Program Management Division Code SR Office of Space Science NASA Headquarters Washington DC 20546-0001 Telephone (202) 358-1992 Fax (202) 358 -3097 E-mail: lika@tristang.gsfc.nasa.gov, mguhatha@hq.nasa.gov Posted 03/08/00 (D-SN432296). (0068)

Loren Data Corp. http://www.ld.com (SYN# 0002 20000310\A-0002.SOL)