The Department of Defense (DoD) is seeking proposals for the development of a hardened scalar and vector magnetometer for magnetic navigation aiding on manned, unmanned, and weapon systems. The hardware should be able to withstand high vibration, low and high temperatures, and altitudes while providing high-rate, accurate, and accurately timestamped magnetic measurements. The goal is to enhance navigation capabilities in contested environments where GPS may be denied or degraded. The magnetometer sensor payloads should provide highly accurate scalar and vector measurements of the magnetic field, with specific requirements for measurement error and rate. The hardware package should also consider sensitivity to environmental factors and target a small size, weight, and power (SWaP). The project will progress through Phase II, where prototype hardware systems will be developed and tested, and Phase III, where the sensor hardware will be transitioned to an operationally approved navigation system or scaled for production. The topic is restricted under export control laws. The solicitation is closed, and the application due date was October 18, 2023. For more information, visit the DoD SBIR 23.3 BAA on grants.gov.