U.S. Department of Commerce/National Oceanic and Atmospheric Administration/OFA/PGAS/Contract Administration Branch -- OfA513, 1325 East West Highway -- Station 4301, Silver Spring, Maryland 20910-3283

R -- SATELLITE ENGINEERING AND NAVIGATION SERVICES POC Edward F. Tennant, Jr., 301/713-0823 CNT 50-DGNE-5-00016, Modificaiton 0006 AMT $1,920,429.00 DTD 050197 TO Lockheed Martin Services, Inc., 2339 Route 70 West, Cherry Hill, New Jersey 08358 (0121)

Loren Data Corp. http://www.ld.com (SYN# 0286 19970506\R-0001.AWD)