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

A -- PROVIDE MATHEMATICAL MODELING & ANALYSIS, COMPUTER SOFTWARE DEVELOPMENT & MAINTENANCE, SIMULATION STUDIES, DATA COLLECTION & ARCHIVING, AND DATA ANALYSIS IN THE AREAS OF GEOPHYSICS AND GEODYNAMICS. SOL RFO5-61531-263 DUE 091098 POC Veronica C. Stubbs, Contract Specialist, Phone (301)286-2275, Fax (301)286-1739, Email Veronica.C.Stubbs.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#RFO5-61531-263. E-MAIL: Veronica C. Stubbs, Veronica.C.Stubbs.1@gsfc.nasa.gov. NASA/GSFC plans to issue a Request for Offer (RFO)5-61531-263 on a sole source basis to Raytheon ST Systems (STX) Corporation. This procurement will extend the period of performance under Contract NAS5-31760 for an additional 9 months beyond the current end date of the contract (1/2/99). Some tasks under this contract will be extended for shorter periods of time. 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 will be competed in 1998-1999 and awarded by January 1999, August 1999, and September 1999. Under Contract NAS5-31760, the Contractor provides on-site and off-site 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 in mathematical modeling and analysis, computer softwaredevelopment and maintenance, simulation studies, data collection and archiving, and data analysis in the areas of geodynamics and geophysics. This contract is being extended to meet the following critical milestones: a) in-flight calibration of the magnetometer and production of a joint main field model for the launch of the Oersted mission scheduled for launch December 1998, the main field model prepared from the early data from that satelite is expected to be prepared in the spring of 1999; b) Phase II global gravity field model development as a joint effort between GSFC and DOD; c) software and simulations for the launch of the Shuttle Laser Altimeter-3; d) calibration of altimetry data from TOPEX and Geosat follow-on launches and the analysis of the post-launch data; e) conversion of hardware and software from VAX VMS environment to a UNIX platform; and f)implement and run the coupled ocean-atmosphere simulations for the NASA Seasonal-to-Interannual Prediction Project (NSIPP. the new ocean-code is scheduled for delivery October 1998 and the analyses of the 100 year simulation in terms of the predictability of the coupled system in collaboration with members of the NSIPP science team is scheduled for completion September 1999. The Contractor provides geodynamic computer software development and maintenance involving the maintenance and enhancement of the SOLVE and ERODYN programs. The SOLVE program performs the normal equation solution and matrix inversion that are used in the determination of gravity models, tracking station positions, tidal parameters, Earth rotation, GM sea surface topography, etd. The ERODYN program is an error analysis program providing the effects of parameters excluded from the model on modeled parameters, as well as eigenvalue and eigenvector analysis. The Contractor also performs Geodynamics studies, Gravity Field Analysis, Altimetry and Geoid Anomaly Analysis, Crustal Dynamics Data Information System support, Atmospheric Influences on Global Geodynamics analysis, Earthquake Occurrence and Earth Rotation analysis, Gravity Modeling for Venus, East African Rift Geology, Earth Core Fluid Motions Modeling, Lunar Science Outpost Research Coordination, Laboratory for Terrestrial Physics Computing Facility support, Advanced Sensor Simulation Studies, Geomagnetic studies, Modeling Ionospheric and Field Aligned Currents, Magsat Data Correlations, Analysis of Terrain Slopes and Laser Altimeter Performance, and Multisource Geologic Mapping and Image Processing. Raytheon STX is the only company with the specialized experience required to successfully complete the above milestones and provide post-launch support services. 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 Number Note(s): 22. 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. Posted 08/20/98 (D-SN239983). (0232)

Loren Data Corp. http://www.ld.com (SYN# 0009 19980824\A-0009.SOL)