NASA/Goddard Space Flight Center, Code 219, Greenbelt, MD 20771

A -- 6 TO 8 MONTH EXTENSION TO NAS5-32340 FOR MISSION OPPERATIONS FOR THE NASA SATELLITE LASER RANGING (SLR) AND VERY LONG BASELINE INTERFEROMETRY (VBLI) PROGRAMS. POC Diane Scherer, Contracting Officer, Phone (301)286-9285, Fax (301)286-1739, Email Diane.B.Scherer.1@gsfc.nasa.gov -- William A. Hatchl, Contracting Officer, Phone (301)286-3734, Fax (301)286-1739, Email William.A.Hatchl.1@gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GSFC/date.html#219VBLI. E-MAIL: Diane Scherer, Diane.B.Scherer.1@gsfc.nasa.gov. NASA's Goddard Space Flight Center (GSFC) plans to issue a Request for Proposal (RFP), on a sole source basis in accordance with 10 U.S.C 2304(c)(1), Only One Responsible Source and 10 U.S.C. 2304(d)(1)(B), Unacceptable Delays. NASA/GSFC plans to obtain mission services from AlliedSignal Technical Services Corporation (ATSC), 1 Bendix Road, Columbia, Maryland, 21045-1897, for a six month extension (November 1, 1998 through May 31, 1999) with two one month options (June 1, 1999 -- July 31, 1999), to existing contract NAS5-32340. These services are a continuation of the scientific and engineering mission operations support for the NASA Satellite Laser Ranging (SLR) and Very Long Baseline Interferometry (VLBI) programs while a competition is conducted for the follow-on effort. This support includes, but is not limited to, the management, operations, engineering and maintenance of eight SLR and two VLBI systems. The SLR sites supported by this effort are in Monument Peak, California; Greenbelt, Maryland; Maui, Hawaii; Fort Davis, Texas; Arequipa, Peru; Tahiti, French Polynesia; South Africa and India. The two NASA VLBI sites operated by the contractor are located in Kauai, Hawaii and Greenbelt, Maryland. These SLR and VLBI sites provide daily data to the Crustal Dynamics Data Information System (CDDIS) which is made available to space geodetic scientific investigators world wide. Award to any other source for this 6 to 8 month period would caused an unacceptable delay to the acquisition of satellite tracking data and acquisition data for orbit determination and jeopardize the critical milestone schedules and tracking requirements for satellite missions. Some of the current missions which would be impacted are GEOSAT Follow-On 1, LAGEOS-1 and -2, Etalon-1 and -2, ERS-1, GFZ-1, Stella, and Starlette as well as new upcoming satellites launches totally dependent on SLR tracking for orbit determination. This six to eight month extension is required to ensure continuation of support until the follow-on competitive procurement is awarded. The follow-on acquisition has been synopsized and will be procured as a full and open competition. The draft Request for Proposal (RFP) 5-61742-261 has been released, and the Government anticipates selection and award in May of 1999. The options for this extension to NAS5-32340 may be exercised if there is delay in the expected procurement schedule. This support is a continuation of specific specialized support performed under this contract for the past 4 years and 9 months, and is only intended to continue until the follow-on contract is competitively awarded. In accordance with the Federal Acquisition Regulation (FAR) 6.302-1, Only One Responsible source, NASA/GSFC intends to obtain these services from AlliedSignal Technical Services Corporation (ATSC), 1 Bendix Road, Columbia, Maryland. The Government does not intend to accquire a commercial item using Far Part 12. See Note 26. See Note 22. An Ombudsman has been appointed, See Internet Note "B". Any referenced notes can be viewed at the following URL: p://genesis.gsfc.nasa.gov/nnotes.htm. Posted 08/06/98 (D-SN233755). (0218)

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