Mathematical Gravity Modeling Advancement

Inactive on SAM.gov — responses were due 23 Jul 2026 · No Set aside used · National Geospatial-Intelligence Agency (NGA), DoD · Saint Louis, MO · NAICS 541715 · Solicitation HM0476_MaGMA

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SAM.gov marked this notice inactive — responses were due 23 July 2026.

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Solicitation details

Solicitation number	HM0476_MaGMA
Notice ID	ad98854f82154cb39ac0cadc98790e6e
Agency	Department of Defense (DoD)
Sub-agency	National Geospatial-Intelligence Agency (NGA)
Contracting office	NATL GEOSPATIAL-INTELLIGENCE AGENCY
NAICS code	541715 — Research and Development in the Physical, Engineering, and Life Sciences (Except Nanotechnology and Biotechnology)
Product / service code (PSC)	AJ12
Set-aside	No Set aside used
Notice type	Solicitation
Posted	02 July 2026
Response deadline	23 July 2026 (closed)
Place of performance	Saint Louis, MO, USA

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Description

The National Geospatial-Intelligence Agency (NGA) requires specialized research and software development services to enhance advanced gravimetric and planetary modeling capabilities. The prospective vendor will be required to provide supplies and services in the following core areas: Planetary Modeling: Develop high-fidelity, variable-resolution planetary models (for Earth and other planetary bodies) with complex density variations to validate derived gravimetric quantities. Software Development & Optimization: Integrate, improve, and optimize NGA-provided analytic continuation code, evaluating it for parallel computation and operational use. Algorithm Development: Research and implement memory-efficient computational techniques (e.g., out-of-core inverse methods) for estimating spherical harmonic expansion (SHE) model coefficients. Exploratory Research: Collaborate with NGA Subject Matter Experts (SMEs) to evaluate and investigate new mathematical, modeling, and algorithmic techniques that align with the overall project goals. For full technical specifications, baseline code parameters, and validation methodology requirements, please refer to the attached solicitation documents.

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Market context: DoD and NAICS 541715

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