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Lunar Magnetic field investigations of Korea Pathfinder Lunar Orbiter
Ho Jin,Khan-Hyuk Kim,Derac Son,Hyojeong Lee,Jehyuk Shin,Eunae Kim 한국자기학회 2021 한국자기학회 학술연구발표회 논문개요집 Vol.31 No.2
Korea Pathfinder Lunar Orbiter (KPLO) is the first Korean Lunar exploration mission. Kplo-MAGnetometer (KMAG) is one of the scientific instruments of KPLO set to be launched in 2022. Its scientific objectives are the investigations of the lithospheric magnetism of the Moon and measure the electromagnetic wave properties near Moon’s orbit space. KMAG consists of three fluxgate magnetometers on a 1.2 m long boom. The three magnetometers are used for scientific measurements, redundancy checks, and multi-sensor technical investigation. The magnetometers and an inner Anisotropic Magneto-Resistive sensor perform simultaneous sampling to correct for the magnetic field interference caused by the spacecraft. The fully integrated flight model assembly showed that the magnetometer noise level was less than 30 pT Hz−1/2 at 1 Hz and stability was within ±0.2 nT at the 10 Hz sampling rate. This paper describes the configuration and performance of the KMAG using the multi-sensing method. The KMAG will be able to contribute to multi-site in-situ measurements of the lunar magnetic field with others lunar mission during KPLO operation phase. We expect that the KMAG will provide an up-to-date lunar observation data set and an opportunity to perform the multi-sensor observation. 〈그림 본문참조〉