NASA/George C. Marshall Space Flight Center, Procurement Office, Marshall Space Flight Center, AL 35812

A -- NATIONAL SPACE SCIENCE AND TECHNOLOGY CENTER (NSSTC) SOL 8-1-0-SD-C7058 DUE 123100 POC Carlos M. Smiley, Contracting Officer, Phone (256) 544-0355, Fax (256) 544-8656, Email carlos.smiley@msfc.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=62#8-1-0-SD- C7058. E-MAIL: Carlos M. Smiley, carlos.smiley@msfc.nasa.gov. The purpose of this modification is to revise the response date as follows: From: June 23, 2000 To: December 31, 2000 All other requirements ofthe base synopsis remain in effect and unchanged. Posted 06/07/00 (D-SN462290). (0159)

Loren Data Corp. http://www.ld.com (SYN# 0005 20000609\A-0005.SOL)