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천문학회지(JKAS) , Vol.54 no.1 (2021)
pp.9~16

DOI : 10.5303/JKAS.2021.54.1.009

CONCEPTUAL STRUCTURAL DESIGN AND COMPARATIVE POWER SYSTEM ANALYSIS OF OZONE DYNAMICS INVESTIGATION NANO-SATELLITE (ODIN)

Nuri Park

(Department of Astronomy and Space Science, Chungnam National University)

Euidong Hwang

(Department of Astronomy and Space Science, Chungnam National University)

Yeonju Kim

(Department of Astronomy and Space Science, Chungnam National University)

Yeongju Park

(Department of Astronomy and Space Science, Chungnam National University)

Deokhun Kang

(Department of Electrical Engineering, Chungnam National University)

Jonghoon Kim

(Department of Electrical Engineering, Chungnam National University)

Ik-seon Hong

(Department of Astronomy and Space Science, Chungnam National University)

Gyeongbok Jo

(Department of Astronomy and Space Science, Chungnam National University)

Hosub Song

(Department of Astronomy and Space Science, Chungnam National University/Korea Astronomy and Space Science Institute)

Kyoung Wook Min

(Department of Physics, Korea Advanced Institute of Science and Technology)

Yu Yi

(Department of Astronomy and Space Science, Chungnam National University)

The Ozone Dynamics Investigation Nano-Satellite (ODIN) is a CubeSat design proposed by Chungnam National University as contribution to the CubeSat Competition 2019 sponsored by the Korean Aerospace Research Institute (KARI). The main objectives of ODIN are (1) to observe the polar ozone column density (latitude range of 60 to 80 in both hemispheres) and (2) to investigate the chemical dynamics between stratospheric ozone and ozone depleting substances (ODSs) through spectroscopy of the terrestrial atmosphere. For the operation of ODIN, a highly ecient power system designed for the specic orbit is required. We present the conceptual structural design of ODIN and an analysis of power generation in a sun synchronous orbit (SSO) using two dierent congurations of 3U solar panels (a deployed model and a non-deployed model). The deployed solar panel model generates 189.7 W through one day which consists of 14 orbit cycles, while the non-deployed solar panel model generates 152.6 W. Both models generate enough power for ODIN and the calculation suggests that the deployed solar panel model can generate slightly more power than the non-deployed solar panel model in a single orbit cycle. We eventually selected the non-deployed solar panel model for our design because of its robustness against vibration during the launch sequence and the capability of stable power generation through a whole day cycle.

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