SA51C-2413
Development of Space Science Instruments for Next Generation Small Satellite -1
Friday, 18 December 2015
Poster Hall (Moscone South)
Jongdae Sohn1, Hanik KIM2, Junchan Lee1, Suk-Bin Kang3, Cheongrim Choi1, Chang Ho Woo1, Yongmyung Seo4, Ju Woo4, Go-Ean Na5, Gyungbok Jo6, Kyoung Min1, Jongho Seon7, Kwangsun Ryu1, Kyung In Kang1, Jang-Soo Chae1 and Goo-Hwan Shin1, (1)KAIST Korea Advanced Institute of Science and Technology, Daejeon, South Korea, (2)KAIST, Space Exploration Engineeting, Daejeon, South Korea, (3)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (4)Kyung Hee University, Space Science & Astronomy, Yongin, South Korea, (5)Ewha Womans University, Physics, Seoul, South Korea, (6)Chungnam National University, Astronomy and space science, Daejeon, South Korea, (7)Kyung Hee University, School of Space Research, Yongin, South Korea
Abstract:
A package of space science payloads is to be flown as a secondary payload on board the first satellite of the Next Generation Small Satellite-1 (NEXTSat-1) series of Korea, a microsatellite which is scheduled for launch in 2017 into the polar orbit. It consists of Space Radiation Detectors (SRD), which will measure the ring current and radiation belt particles in the subauroral regions, and Space Plasma Detectors (SPD), which will measure the ionospheric ions and electrons in the middle and low latitude regions. SRD consists of two instruments: Medium Energy Particle Detector (MEPD) will measure electrons and ions in the range of ~25 to ~400 keV, and High Energy Particle Detector (HEPD) will measure electrons of ~0.1 to ~2 MeV and ions up to ~20 MeV. With two and three telescopes for MEPD and HEPD, respectively, together with many spectral bins, SRD, will discriminate the trapped and precipitating particles with high spectral resolution. SPD is composed of three conventional instruments: a Langmuir Probe (LP), a Retarding Potential Analyzer (RPA), and an Ion Drift Meter (IDM). LP of a planar shape will be used to determine the densities and temperatures of the ionospheric electrons, while RPA and IDM will determine the densities, temperatures, and the composition of the ionospheric ions as well as their drift velocities. With its high temporal resolution, SPD aims to observe substructures of plasma irregularities. This paper discusses the designs and scientific objectives of these instruments.
