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

A -- EXTENSION TO CONTRACT NAS5-32352 FOR SCIENTIFIC DATA ANALYSIS AND SOFTWARE SUPPORT FOR GEODYNAMICS EXPERIMENTS ASSOCIATED WITH SPACE MISSIONS AND RESEARCH PROGRAMS SOL RFO5-62265-263 DUE 111698 POC Veronica C. Stubbs, Contract Specialist, Phone (301)614-5591, Fax (301)614-5619, Email Veronica.C.Stubbs.1@gsfc.nasa.gov -- William A. Hatchl, Contracting Officer, Phone (301)614-5590, Fax (301)614-5619, 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#RFO5-62265-263. E-MAIL: Veronica C. Stubbs, Veronica.C.Stubbs.1@gsfc.nasa.gov. NASA/GSFC plans to issue a Request for Offer (RFO), on a sole source basis to Raytheon STX Corporation. This procurement will extend the period of performance under Contract NAS5-32352 for an additional 8 months beyond the current end date of the contract (1/2/99). This extension is required to: 1. Meet critical milestones within the Laboratory for Terrestrial Physics; and 2. Consolidate the efforts with similar requirements within the Earth Sciences Directorate, which wil be competed in 1998-1999. Under Contract NAS5-32352, the Contractor provides onsite and offsite support to the Laboratory for Terrestrial Physics, whose function is to advance NASA programs by promoting the increase in scientific knowledge of the Earth and planetary solid-body physics. The Contractor provides support to principal investigators of geodynamics experiments associated with the following space missions and research programs: Solid Earth and Natural Hazards (SENH); Laser Earth Dynamics and Global Positioning System (GPS) Experiments; TOPEX/POSEIDON; Sea Surface Altimetry Satellite (Seasat); Geodynamic Altimeter Satellite (GEOSAT); Geodynamic Satellite (GEOS)-3; Laser Geodynamic Satellite (LAGEOS) Iⅈ European Research Satellite (ERS)-1; precise orbit determination, geoid and mean sea surface studies; altimeter calibrations and analyses of tides, mesoscale variability, and general ocean circulation; CHAMP (a small German satellite mission for Gravity Field and Magnetic Field Mapping)and Gravity Recovery and Climate Experiment (GRACE), prelaunch analysis, and Mars Global Surveyor (MGS) mission analysis and software development. The support relates to all phases of space geodetic research from experiment concept and design, through pre-launch studies and post-launch data analyses. The majority of the large scale computing shall be performed at Goddard's NASA Center for Computational Sciences (NCCS). The mission planning and pre-launch requirements shall include specialized error analyses using the Orbit Analysis Program (ORAN) and Error Analysis (ERODYN) programs. The post-launch mission data analyses and geodetic estimations shall include precise orbit determination, utilization and improvement of the best available models, and the most accurate computer programs and techniques. The data shall be the source of information for estimating geodetic parameters. The Geodynamics Orbit and Geodetic Parameter Estimation System (GEODYN) shall be the primary tool for this work. The Contractor is also responsible for continuing development and enhancement of major computer programs which reside at the Goddard NCCS and which are comprehensive in scope with a wide range of applications. The Contractor shall also perform the following scientific tasks: Global and Regional Plate Tectonics; Polar Motion/Earth Rotation; Ocean Tides; Gravity Field Modeling; Satellite Altimetry Data Analysis; Precision Orbit Determination Operations and Production System for TOPEX/POSEIDON; TOPEX Altimeter Calibration; Mars Global Surveyor (MGS) Mission Support;Computer Program Support (maintenance and development); Polar Ice Science using Altimetry; Land Altimetry Studies; and Future Mission Studies for future Earthprobes including GRACE, JASON, TOPEX Follow-on, and studies for the Earth Observing System Altimeter (EOS ALT) mission, which will follow JASON. This contract is being extended to meet the following critical milestones: Geoscience Laser Altimeter (GLAS) engineering model development (subsystem testing and integration (2/99), GLAS Critical Design Review (3/99), GLAS flight model final design (5/99), GLAS flight model subsystem testing and integration (8/99); completion of Shuttle Laser Altimeter (SLA)-02 data processing to include: orbits for all observation periods; time taging; georeferencing of bounce points; and waveform processing (4/99); completion of analysis of initial Very Long Baseline Interferometry (VLBI) observations of MGS for improved tracking, presentation at AGU (5/99); and processing of subsequent VLBI MGS observations (8/99). Raytheon STX is the only responsible source with the specialized experience required to successfully complete the above milestones. Statutory authority for this sole source procurement is 10 U.S.C. 2304(c)(1) -- Only One Responsible Source. However, companies who believe they can provide these services without any detrimental impact to the program schedules supported by this work, should fully identify their interest and capabilities within 15 days after publication of this synopsis. See Notes: A, B, 22, and 26. Interested firms have 15 days from the publication of this synopsis to submit in writing to the identified point of contact, their qualifications/capabilities. Such qualifications/capabilities will be used solely for the purpose of determining whether or not to conduct this procurement on a competitive basis. Responses received after the 15 days or without the required information will be considered nonresponsive to the synopsis and will not be considered. A determination by the Government to not compete this proposed effort on a full and open competitive basis, based upon responses to this notice is solely within the discretion of the Government. All qualified responsible sources may submit an offer which shall be considered by the agency. Any referenced notes can be viewed at the following URL: http://genesis.gsfc.nasa.gov/nnotes.htm. Posted 10/29/98 (D-SN266749). (0302)

Loren Data Corp. http://www.ld.com (SYN# 0004 19981102\A-0004.SOL)