통신, 해양, 기상의 세 분야 복합 임무를 수행하는 천리안위성(Communication Ocean Meteorological Satellite: COMS)은 정지궤도 동경 $128.2{\circ}$에서 2011년 4월부터 현재 정상 운영 임무를 수행하고 있다. 세 임무를 수행하기 위해 천리안위성에는 3가지 탑재체인 기상탑재체(Meteorological Imager: MI), 해양탑재체(Geostationary Ocean Color Imager: GOCI), 통신탑재체(Ka-band communication payload)가 실려 있다. 세 가지 임무 운영과 위성 유지 관리를 위해 위성 관제가 실시간 운영으로 수행된다. 위성 실시간 운영은 명령과 원격측정자료를 통해 위성과 직접 통신하는 업무이다. 본 논문에서는 천리안위성의 실시간 운영 특성으로 지상국 장비 구성과 일일, 주간, 월간, 계절별, 연간 운영 업무 특성을 논하였다. 천리안위성의 궤도상 시험(In-Orbit-Test: IOT) 말기와 정상 운영 첫 해가 포함되는 2011년의 1년간 운영 결과에 대한 토의를 통해 성공적인 실시간 운영 결과 확인도 제시하였다.
통신, 해양, 기상의 세 분야 복합 임무를 수행하는 천리안위성(Communication Ocean Meteorological Satellite: COMS)은 정지궤도 동경 $128.2{\circ}$에서 2011년 4월부터 현재 정상 운영 임무를 수행하고 있다. 세 임무를 수행하기 위해 천리안위성에는 3가지 탑재체인 기상탑재체(Meteorological Imager: MI), 해양탑재체(Geostationary Ocean Color Imager: GOCI), 통신탑재체(Ka-band communication payload)가 실려 있다. 세 가지 임무 운영과 위성 유지 관리를 위해 위성 관제가 실시간 운영으로 수행된다. 위성 실시간 운영은 명령과 원격측정자료를 통해 위성과 직접 통신하는 업무이다. 본 논문에서는 천리안위성의 실시간 운영 특성으로 지상국 장비 구성과 일일, 주간, 월간, 계절별, 연간 운영 업무 특성을 논하였다. 천리안위성의 궤도상 시험(In-Orbit-Test: IOT) 말기와 정상 운영 첫 해가 포함되는 2011년의 1년간 운영 결과에 대한 토의를 통해 성공적인 실시간 운영 결과 확인도 제시하였다.
Communication Ocean Meteorological Satellite (COMS) has the hybrid mission of meteorological observation, ocean monitoring, and telecommunication service. The COMS is located at $128.2{\circ}$ east longitude on the geostationary orbit and currently under normal operation service since Apr...
Communication Ocean Meteorological Satellite (COMS) has the hybrid mission of meteorological observation, ocean monitoring, and telecommunication service. The COMS is located at $128.2{\circ}$ east longitude on the geostationary orbit and currently under normal operation service since April 2011. In order to perform the three missions, the COMS has 3 separate payloads, the meteorological imager (MI), the Geostationary Ocean Color Imager (GOCI), and the Ka-band communication payload. The satellite controls for the three mission operations and the satellite maintenance are done by the real-time operation which is the activity to communicate directly with the satellite through command and telemetry. In this paper the real-time operation for COMS is discussed in terms of the ground station configuration and the characteristics of daily, weekly, monthly, seasonal, and yearly operation activities. The successful real-time operation is also confirmed with the one year operation results for 2011 which includes both the latter part of the In-Orbit-Test (IOT) and the first year normal operation of the COMS.
Communication Ocean Meteorological Satellite (COMS) has the hybrid mission of meteorological observation, ocean monitoring, and telecommunication service. The COMS is located at $128.2{\circ}$ east longitude on the geostationary orbit and currently under normal operation service since April 2011. In order to perform the three missions, the COMS has 3 separate payloads, the meteorological imager (MI), the Geostationary Ocean Color Imager (GOCI), and the Ka-band communication payload. The satellite controls for the three mission operations and the satellite maintenance are done by the real-time operation which is the activity to communicate directly with the satellite through command and telemetry. In this paper the real-time operation for COMS is discussed in terms of the ground station configuration and the characteristics of daily, weekly, monthly, seasonal, and yearly operation activities. The successful real-time operation is also confirmed with the one year operation results for 2011 which includes both the latter part of the In-Orbit-Test (IOT) and the first year normal operation of the COMS.
* AI 자동 식별 결과로 적합하지 않은 문장이 있을 수 있으니, 이용에 유의하시기 바랍니다.
제안 방법
The weekly operations of the COMS are Station-Keeping (SK) maneuvers of the satellite. In order to meet the operational requirement on the satellite orbit maintenance, SK maneuver is carried out once a week in the East-West (EW) direction and in the North-South (NS) direction, respectively[13, 14].
An introduction of the real-time operation task for the COMS was presented just after the IOT in a conference[6]. In this paper, for the COMS normal operation the real-time operation is discussed in terms of the ground station configuration and the characteristics of daily, weekly, monthly, seasonal, and yearly operation activities. The successful real-time operation is also confirmed with the one year operation results for 2011 which includes both the latter part of the In-Orbit-Test (IOT) and the first year normal operation of the COMS.
The COMS is operated by KARI using the SGCS for 24 hours a day 365 days a year. The real-time operation of the COMS can be divided into regular operation activities and irregular operation activities.
The oscillators are used for the Sun eclipse time calculation, the Sun sensor, the torque estimation of the satellite attitude, and the IRES masking time calculation. The oscillator update is requested by the FDS, encoded into command by the MPS, and sent by the ROS to the satellite every 4 weeks. The IRES is used for the satellite to find the Earth for its attitude control.
The WOL is requested by the FDS, planned by the MPS, and uploaded by the ROS to the satellite every day. The satellite ranging is carried out to measure the distance from the ground station to the satellite by sending a Radio Frequency (RF) signal to the satellite and receiving the return signal reflected by the satellite. The ranging operation is executed usually every half or one hour by the real-time operator using the TTC and the ranging data are sent from the TTC to the FDS for the orbit determination.
대상 데이터
The telemetry data related to the Ka-band payload status are sent to the Network Control Center (NCC) of 'Electronics and Telecommunications Research Institute' (ETRI).
The telemetry data required for image data processing are sent to the 'Image Data Acquisition and Control System' (IDACS) at both the NMSC of KMA and the SOC of KARI and the IMage Pre-processing System (IMPS) at the Korea Ocean Satellite Center (KOSC) of Korea Institute of Ocean Science & Technology (KIOST).
참고문헌 (14)
Y. Cho and H. Youn, "Characteristics of COMS Meteorological Imager", Proceedings of SPIE 2006 Sensors, Systems, and Next-Generation Satellites X, Stockholm, Sweden, Vol. 6361, pp. 63611G-1-63611G-8, Sep.11-13 2006.
H. Kim, G. Kang, B. Ellis, M. Nam, H. Youn, F. Faure, P. Coste, and P. Servin, "Geostationary Ocean Color Imager (GOCI), Overview and Prospect", Proceedings of 60th International Astronautical Congress, Daejeon, Republic of Korea, IAC-09.B1.3.9, pp. 1-11, Oct. 12-16 2009.
S. Lee, J. Jo, M. You, J. Choi, and K. Ahn, "Ka band Communication Payload System Technology of COMS", The Journal of the Korea Society of Space Technology, Vol. 5, No. 2, pp. 75-81, 2010.
Y. Cho, "Earth Observation Mission Operaton of COMS during In-Orbit Test", The Journal of the Korea Society of Space Technology, Vol. 8, No. 1, pp. 89-100, 2013.
Y. Cho, "COMS Normal Operation for Earth Observation Mission", Proceedings of SPIE Sensors, Systems, and Next-Generation Sateliites XVI, Edinburgh, United Kingdom, Sep. 24-27, Vol. 8533, pp. 85331S-1- 85331S-9, 2012.
S. Lee, Y. Uhm, Y. Cho, B. Park, B. Kim, K. Yang, Y. Chun, C. Park, C. Han, and J. Suk, "An Introduction of Real-Time Operation Task for the COMS", Proceedings of the 2011 KSAS Spring Conference, Gyeongju, Republic of Korea, Apr. 13-15, pp. 1207-1211, 2011. (In Korean)
S. Lee, Y. Park, B. Park, B. Kim, M. Baek, K. Yang, and Y. Chun, "A Conceptual Design of 3D Monitoring Software for the COMS", Proceedings of the 2009 KSAS Fall Conference, Kyeongju, Republic of Korea, pp. 1132-1135, Nov. 12-13, 2009. (In Korean)
M. Baek, "Introduction on COMS In-Orbit Test for Meteorological Imager and Geostationary Ocean Color Imager", Proceedings of the 2011 KSAS Fall Conference, Yongpyong, Republic of Korea, pp. 1068-1071, Nov. 9-11, 2011. (In Korean)
B. Lee, I. Kim, S. Lee, Y. Hwang, W. Jung, J. Kim, H. Kim, H. Lee, S. Lee, Y. Cho, and B. Kim, "Operational Validation of the COMS Satellite Ground Control System during the First Three Months of In-Orbit Test Operations", The Journal of the Korea Society of Space Technology, Vol. 6, No. 1, pp. 37-44, 2011.
I. Kim, B. Lee, and J. Kim "Verification of Telemetry Processing and Display Functions of Satellite Ground Control System for Chollian Satellite", Proceedings of the 2012 KSAS Fall Conference, Jeju, Republic of Korea, pp. 2210-2214, Nov. 15-16, 2012. (In Korean)
S. Lee, B. Park, B. Kim, G. Ju, and Y. Park, "A Study on the East/West Station Keeping Planning Considering Wheel Off-Loading", Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 34, No. 9, pp. 60-66, 2006. (In Korean)
B. Park, Y. Park, and S. Lee, "COMS Momentum Dumping Optimal Thruster Set Selection", Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 34, No. 11, pp. 54-60, 2006. (In Korean)
B. Lee, Y. Hwang, H. Kim, and S. Park, "East-West Station-Keeping maneuver strategy for COMS satellite using iterative process", Advances in Space Research, Vol. 47, Iss. 1, pp. 149-159, 2011.
S. Lee, Y. Cho, Y. Park, B. Park, B. Kim, K. Yang, and Y. Chun, "An Introduction of the N/S Station Keeping Operations for the COMS", Proceedings of the 2010 KSAS Fall Conference, Jeju, Republic of Korea, pp. 1068-1071, Nov. 11-12, 2010. (In Korean)
※ AI-Helper는 부적절한 답변을 할 수 있습니다.