Triple Magnesium Ionospheric Photometer (Tri-MIP) Instrument Overview
CUBESATS AND SMALLSATS FOR REMOTE SENSING V(2021)
摘要
Metal atoms and ions are deposited into the Earth's Upper Atmosphere and Ionosphere via meteor ablation. The neutral atoms can undergo charge exchange with extant O+, O-2(+), and N-2(+) ions to become metallic ions. Metallic ions have lifetimes of several days in the ionosphere, allowing vertical wind shear to compress them into thin, dense layers that subsequently produce Sporadic-E propagation of HF radio signals. The Triple Magnesium Ionospheric Photometer (Tri-MIP) instrument was developed by the US Naval Research Laboratory (NRL) to observe airglow emissions from magnesium ions (Mg+) in the Earth's atmosphere and measure global-scale Mg+ density from orbit as a proxy for the metallic ion population. This CubeSat compatible Space Weather sensor is a 1U ionospheric photometer that observes the ultraviolet 280 nm fluorescent emission of Mg+ on the sunlit portion of the orbit. The primary objective is to characterize the Mg+ distribution in the Earth's atmosphere. We present the Tri-MIP instrument concept, laboratory measurements, and upcoming mission concepts.
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关键词
Ionosphere, Measurement Techniques, Remote Sensing, Ultraviolet, CubeSat
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