Development of Flight Model of the Langmuir Probe of Ionospheric Anomaly Monitoring by Magnetometer and Plasma-probe (IAMMAP) for the Compact Advanced Satellite 500-3 (CAS500-3)

This paper investigates the development, validation, and testing of the flight model (FM) of the Langmuir probe (LP) for ionospheric anomaly monitoring by magnetometer and plasma-probe (IAMMAP), a scientific instrument abroad the Compact Advanced Satellite 500-3 (CAS500-3). IAMMAP is designed to measure ionospheric plasma and magnetic field variations at an altitude of approximately 600 km, focusing on the correlation between the equatorial electro-jet (EEJ) and equatorial ionization anomaly (EIA). The FM of the Langmuir probe has been developed following the successful qualification of the engineering qualification model (EQM), with improvements made in several areas, including the replacement of the micro-controller unit (MCU) with space-grade components resistant to radiation and temperature extremes, and the application of the LP operation scenarios. After the functional tests, environmental tests will be performed to verify compliance with FM requirements for satellite operation. The IAMMAP-included LP will contribute to understanding ionospheric anomalies and provide valuable insights for satellite operations in the near-Earth space environment.