# MAGNETOMETER 측정자료와 지구자기장을 이용한 소형 인공위성의 자세 결정

• 석재호 (연세대학교 천문대기과학과) ;
• 최규홍 (연세대학교 천문대기과학과)
• Published : 1992.12.01

#### Abstract

Geomagnetic data from 3-axis magnetometer and the IGRF model (tilite - eccentric dipole model) were used to determine the attitude of a satellite. We compared the values of the geomagnetic model with the magnetometer data and two attitude angles, called $\alpha$ -angle and $\beta$-angle respectively, were calculated. From these angles we calculated simple bounds, $\gamma1$ and $\gamma2$, on the true attitude angle $\gamma$, which is used to detemine attitude, between the z-axis and the local vertical. And then we investigated conditions of attitudes of UoSAT-11, 14, 22.