• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.35 no.12
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• pp.1135-1142
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• 2007

STSAT-2 has an on-board satellite retroreflector array for precise orbit determination. Satellite retroreflector array reflects photon emitted from laser and uses to determine precisely the distance from ground station to satellite by the round-trip travel time of photon. The retroreflector array of protoflight model has been developed and verified through environmental tests. This paper describes the protoflight model of retroreflector array and reports environmental test results. The environmental tests of protoflight model retroreflector array were performed successfully without damage of corner cube prism occurred in engineering model development.

• Aerospace Engineering and Technology
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• v.6 no.1
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• pp.55-63
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• 2007

STSAT-2 (Science & Technology SATellite-2) is a Korea micro-satellite which will be launched at NARO Space center in Koheung, Korea. Launch vehicle for STSAT-2 is KSLV-1 (Korea Space Launch Vehicle-1) which is the first development in Korea space launch vehicle program. Starting development in 2002 EM(Engineering Model), PFM(Proto-Flight Model), and FM(Flight Model) were developed completely. Electrical functional test, space environmental test, and launch vehicle environmental test on system level are performed for testing those development models. In this paper we report the results of STSAT-2 PFM space environmental test and launch vehicle environmental test which is successfully completed.

• Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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• 1998.04a
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• pp.122-129
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• 1998

본 논문에서는 실용급 위성으로는 국내에서 처음 개발되는 다목적 실용위성의 개발과정 중 준비행모델에 대한 발사환경 시험에 관련된 내용의 일부를 관련분야의 전문가들에게 소개하는데 중점을 두었다. 장시간의 개발기간과 고비용이 소요되는 위성체를 성공적으로 설정궤도에 발사하기 위해서는 소음 및 진동에 관련된 심도있는 연구가 필수적이며, 향후 우주 분야의 독자적인 기술 개발시 국내 관련분야 전문가들의 노력이 절대적으로 필요하다.

• Bulletin of the Korean Space Science Society
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• 2006.04a
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• pp.54-54
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• 2006

• Bulletin of the Korean Space Science Society
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• 2006.04a
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• pp.56-56
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• 2006

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.36 no.2
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• pp.195-201
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• 2008

This paper compares the performance of Mass Memory Unit(MMU) between Science and Technology Satellite 1(STSAT-1) and STSAT-2 from developed Proto Flight Model(PFM) for Miniaturization, lightweight and low power consumption. MMU receives the payload data at 200Kbps and transmits them to XTX at 10Mbps in the STSAT-2. The performance of PFM MMU in the Functional and space environments test satisfies the requirements of STSAT-2.

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.30 no.3
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• pp.123-129
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• 2002

본 논문에서는 다목적실용위성 1호 개발 과정 중에 수행했던 연성 하중 해석에 대하여 소개하였다. 먼저 일반적인 연성 하중 해석 과정과 다목적실용위성 개발시 수행한 실제의 과정을 비교하였다. 그리고, 다목적실용위성 1호의 유한요소모델과 본 해석에 관련된 각 기관들의 역할을 설명하였다. 준비행모델의 진동 시험 결과를 이용한 유한요소모델의 조정에 대하여 설명하고, 또한, 해석에 입력으로 사용되는 외력함수에 해당하는 하중들에 대하여 설명하였다. 대표적인 해석 결과들을 제시하여 위성이 발사하중에 대하여 안전하다는 것이 예측되었음을 보여 주었다.

• Bulletin of the Korean Space Science Society
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• 2006.10a
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• pp.162-162
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• 2006

• Aerospace Engineering and Technology
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• v.2 no.2
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• pp.58-65
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• 2003

KARI Electrical Test Team performed the SOH (State Of Health) test and Thermal Cycling test for small satellite of KOMPSAT-1 PFM at KARI SITC Highbay as per Storage plan every year, and verified that the system/subsystem units function installed on PFM were good without significant degradation causing from long-term storage. This paper describes the test items, test method, test procedure and selected test result data.

• Journal of Aerospace System Engineering
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• v.12 no.4
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• pp.35-48
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• 2018

The space qualification has to be conducted by a high level of screening to ensure the design margin of devices, materials, manufacturing processes, units, modules, and subsystem or system. The space qualification according to traditional test standards proposed by US military, NASA and ESA involve high cost and tight schedule due to their conservative requirements. It is necessary to develop a space qualification guideline that is cost-efficient and schedule-optimized for the development of domestic satellites. In this study, as a basic research to develop the space qualification guideline, the articles related to space qualification in test standards document released from military and space agency have been investigated. We are planning to utilize the results as a basic database for establishing the independent tailored space qualification guideline.