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

M -- MAINTENANCE AND OPERATION OF NASA'S SLR AND VLBI STATIONS SOL RFP5-61742-261-2 DUE 052999 POC Kim Sweep, Contract Specialist, Phone (301) 614-5601, Fax (301) 614-5619, Email ksweep@pop200.gsfc.nasa.gov WEB: Click here for the latest information about this notice, http://nais.nasa.gov/EPS/GSFC/date.html#RFP5-61742-261-2. E-MAIL: Kim Sweep, ksweep@pop200.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. NASA/GSFC plans to obtain mission services from AlliedSignal Technical Services Corporation (ATSC), 1 Bendix Road, Columbia, Maryland, 21045-1897, to their current contract NAS5-32340. The extension supports maintenance and operation of NASA's Laser Ranging and Very Long Baseline Interferometry Stations while a new contract is under competition. This second extension is for 3 months (June 30, 1999 through September 30, 1999) with a single option for one additional month of support (October 1, 1999 to October 31, 1999). 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 3 to 4 month period would caused unacceptable delay to the acquisition of satellite tracking data and acquisition data for orbit determination and jeopardize the tracking requirements for satellite missions and campaigns. If the performance is not continuous, it will affect numerous reciprocal international agreements. 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 three to four month extension is required to ensure continuation of support until the follow-on competitive procurement is awarded. The acquisition has been synopsized and will be procured as a full and open competition. The formal Request for Proposal (RFP) 5-61742-261 has been released, and the Government anticipates selection and award in August of 1999. The option 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 5 years, 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. See Note 22. Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nasanote.html. Posted 05/14/99 (D-SN331750). (0134)

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