• KASI NEWSLETTER
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• s.69
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• pp.6-6
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• 2007

• The Bulletin of The Korean Astronomical Society
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• v.42 no.2
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• pp.56.4-57
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• 2017

The GMT-Consortium Large Earth Finder (G-CLEF) is the very first light instrument of the Giant Magellan Telescope (GMT) to be commissioned in 2022. The instrument is a fiber feed, optical band echelle spectrograph that is capable of extremely precise radial velocity measurement. Korea Astronomy and Space Science Institute (KASI) has been involved in the development of the G-CLEF as one member of the international consortium consisted of five astronomical institutes including Smithsonian Astrophysical Observatory (SAO), Observatories of the Carnegie Institution of Washington (OCIW). It is scheduled to have KASI side Critical Design Review in December 2017. In this presentation we will report the recent progress on the critical design activities for the G-CLEF Flexure Control Camera (FCC).

• Bulletin of the Korean Space Science Society
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• 2010.04a
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• pp.36.2-36.2
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• 2010

Followed the System Design Review (PDR) of a mobile SLR (Satellite Laser Ranging) system, a successful preliminary design review was finished in 2009. With the completion of this mobile SLR system, KASI (Korea Astronomy and Space Science Institute) can perform a series of test observation and calibration/validation procedures. After the operation performance of the whole system reaches the nominal design, a regular scheduled observation will be executed. However, the project has been disturbed by the frequent change of working staff, budget profile, and plan as well as the inexperienced man power. In this study, the contents and the issues of PDR are briefly reviewed and several items of SLR system are suggested. This mobile SLR system will push Korea's Space Geodetic study further and will make us jump to another step to the Space Science in Korea.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• v.2
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• pp.602-604
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• 2006

한국천문연구원(KASI)은 국제 GNSS 관측망(IGS)의 글로벌 데이터 센터(GDC)를 설립하였다. KASI GDC는 공식적으로 IGS GDC이고 세계 4번째로 설립되었으며, 아시아 및 오세아니아 지역에서는 최초이다. KASI GDC는 IGS GNSS 데이터를 기록하고, IGS GPS 데이터와 IGS 산출물을 인터넷을 통해 제공한다. GDC에서 다루는 데이터의 양은 매우 빠르게 증가한다. GDC 데이터의 대용량을 처리하기 위해서는 시스템의 높은 효율성과 신뢰성이 요구된다. 그래서 KASI GDC는 높은 신뢰성과 대용량 저장 장치를 필요로 하는 저장 시스템을 구성하기 위해 RAID와 LVM을 적용했다. KASI GDC의 공식 출범 이후 데이터 이용 현황을 확인하고, 항상 시스템이 Active 상태로 유지하기 위한 무정전 시스템 구성에 대해 기술한다.

• The Bulletin of The Korean Astronomical Society
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• v.40 no.2
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• pp.55.1-55.1
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• 2015

Taeduk Radio Astronomy Observatory (TRAO) is about to jump with new system - 16 beams array receiver with low noise temperature, new observation system on VxWorks OS, and FX spectrometer for 32 input signals. We serve a quite obvious diagram to understand new TRAO observation system. This diagram will be quick guide for manager and observer.

• Bulletin of the Korean Space Science Society
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• 2008.04a
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• pp.24.2-24.2
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• 2008

• The Bulletin of The Korean Astronomical Society
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• v.34 no.2
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• pp.37.1-37.1
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• 2009

• Bulletin of the Korean Space Science Society
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• 2007.10a
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• pp.42-42
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• 2007

• The Bulletin of The Korean Astronomical Society
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• v.46 no.2
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• pp.61.2-61.2
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• 2021

We present the current focus issues on biosignature and life in the Solar System and exoplanters considering the possible research items at KASI in collaboration with other fields and institutes. We also suggest possible KASI research projects that can be conducted in the next decade.

• The Bulletin of The Korean Astronomical Society
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• v.35 no.1
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• pp.40.1-40.1
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• 2010

The Main payload of the STSAT-3 (Korea Science & Technology Satellite-3), MIRIS (Multipurpose Infra-Red Imaging System) has been developed for last 3 years by KASI, and its Flight Model (FM) is now being developed as the final stage. All optical lenses and the opto-mechanical components of the FM have been completely fabricated with slight modifications that have been made to some components based on the Engineering Qualification Model (EQM) performances. The components of the telescope have been assembled and the test results show its optical performances are acceptable for required specifications in visual wavelength (@633 nm) at room temperature. The ensuing focal plane integration and focus test will be made soon using the vacuum chamber. The MIRIS mechanical structure of the EQM has been modified to develop FM according to the performance and environment test results. The filter-wheel module in the cryostat was newly designed with Finite Element Analysis (FEM) in order to compensate for the vibration stress in the launching conditions. Surface finishing of all components were also modified to implement the thermal model for the passive cooling technique. The FM electronics design has been completed for final fabrication process. Some minor modifications of the electronics boards were made based on EQM test performances. The ground calibration tests of MIRIS FM will be made with the science grade Teledyne PICNIC IR-array.