The e-CALLISTO is a network of CALLISTO (Compact Astronomical Low-frequency, Low-cost Instrument for Spectroscopy in Transportable Observatories) spectrometers which detect solar radio bursts 24 hours a day in frequency range 45-870 MHz. The number of channels per spectrum is 200 and the time resolution of whole spectrum is 0.25 second. The Korean e-CALLISTO station was developed by Korea Astronomy and Space Science Institute (KASI) collaborating with Swiss Federal Institute of Technology Zurich (ETH Zurich) since 2007. In this paper, we report replacement of the tracking mount and development of the control program using Visual C++/MFC. The program can make the tracking mount track the Sun and schedule CALLISTO to start and to finish its observation automatically using the Solar Position Algorithm (SPA). Daily tracking errors (RMSE) are 0.0028 degree in azimuthal axis and 0.0019 degree in elevational axis between 2014 January and 2015 July. We expect that the program can save time and labor to make the observations of solar activity for space weather monitoring, and improve CALLISTO data quality due to the stable and precise tracking methods.

ABSTRACT
1. 서론
2. 시스템 구성
3. 구동 프로그램 개발
    3.1. 객체지향 구조
    3.2. 그래픽 사용자 인터페이스(GUI)
    3.3. 알고리즘
4. 추적 성능 평가
5. 결론
참고 문헌

• 박종엽(한국천문연구원/경희대학교) | JONGYEOB PARK (Korea Astronomy and Space Science Institute/Kyung Hee University)
• 최성환(한국천문연구원/경희대학교) | SEONGHWAN CHOI (Korea Astronomy and Space Science Institute/Kyung Hee University)
• 봉수찬(한국천문연구원/과학기술연합대학원대학교) | SU-CHAN BONG (Korea Astronomy and Space Science Institute/University of Science and Technology)
• 권용준(한국천문연구원/경희대학교) | YONGJUN KWON (Korea Astronomy and Space Science Institute/Kyung Hee University)
• 백지혜(한국천문연구원) | JI-HYE BAEK (Korea Astronomy and Space Science Institute)
• 장비호(한국천문연구원) | BI-HO JANG (Korea Astronomy and Space Science Institute)
• 조경석(한국천문연구원/과학기술연합대학원대학교) | KYUNG-SUK CHO (Korea Astronomy and Space Science Institute/University of Science and Technology)
• 문용재(경희대학교) | YONG-JAE MOON (Kyung Hee University)
• Christian Monstein(취리히 연방 공과대학교)