오는 수요일(12월 17일) 오후 4:00에 아래와 같이 2025년 하반기 정규 콜로키움이 진행될 예정입니다.

발표 후에는 연사와의 대화시간(5:00-5:40) 및 저녁 식사가 예정되어 있으니 많은 참여 부탁드립니다.

발표자: 이희재 박사 (한국천문연구원)

호스트: 정안영민

장소: 장영실홀 331-2 및 원격 연결

일시: 12월 17일 (수) 오후 4:00

접속주소: https://zoom.us/j/96778730290?pwd=guUS8r1bFbggZKMRVcSiTBnIGnZL8p.1

교육학점: 천문연 소속 현장참석자의 경우 필수 0.5 학점 부여

제목: Toward Planetary Defense Against Near-Earth Asteroids 

초록: 

Near-Earth Objects (NEOs), particularly Potentially Hazardous Asteroids (PHAs), pose a persistent risk to Earth. Improving early detection, precise tracking, and physical characterization of these objects is essential for reliable impact-risk assessment and the development of effective planetary-defense strategies. This talk will provide an overview of recent progress in ground-based optical monitoring, including survey optimization, astrometric and photometric data processing, and follow-up observations supported by international networks.
I will highlight Korea’s expanding contributions within the International Asteroid Warning Network (IAWN), and introduce the SEJONG telescope, a newly developed 1.5-m facility dedicated to NEO discovery. Our efforts focus on advancing automated moving-object detection pipelines and establishing optimized observing strategies to increase the detection efficiency. I will also present our development of an impact-probability estimation tool to more accurately assess the threat posed by newly detected objects.
Finally, I will introduce our concept for a future planetary-defense mission, provisionally named FINALEI, which aims to conduct a flyby to characterize a target asteroid’s physical properties and subsequently perform a kinetic-impact experiment on a secondary asteroid to alter its orbit. The ultimate objective of this mission is to enable an active planetary-defense capability.

진행언어: 한국어

슬라이드언어: 영어

원격 접속 방법 :

A. 웹 브라우저: Chrome을 추천하며 아래 주소를 실행시 Zoom 구동을 위한 프로그램이 설치될 수 있음

B. 접속 주소: https://zoom.us/j/96778730290?pwd=guUS8r1bFbggZKMRVcSiTBnIGnZL8p.1

C. 유의사항: 접속 후 "마이크는 뮤트로 설정" - 기본설정은 뮤트로 되어있음 > 질의 응답시간에는 마이크를 사용해서 질문 가능함

천문연 콜로키움 위원회 (김종수, 선광일, 이창원, 문홍규, 노혜림, 한정열)

운영위원회 (김진호, 김영민, 이석호, 홍준석, 석지연, 이재현)

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Dear all,

The KASI's regular colloquium is scheduled at Dec. 17, as shown below.

A conversation session with speakers and dinner are scheduled after the colloquium.

Speaker: Dr. Hee-Jae Lee (한국천문연구원)

Host: 정안영민

Place: Jang Yeong-sil Hall 331-2 & Online

Time: December 17 (Wed) 4:00 pm 

Access: https://zoom.us/j/96778730290?pwd=guUS8r1bFbggZKMRVcSiTBnIGnZL8p.1

KASI Educational credits: 0.5 educational credits are awarded to off-line attendees.

Title: Toward Planetary Defense Against Near-Earth Asteroids 

Abstract: 

Near-Earth Objects (NEOs), particularly Potentially Hazardous Asteroids (PHAs), pose a persistent risk to Earth. Improving early detection, precise tracking, and physical characterization of these objects is essential for reliable impact-risk assessment and the development of effective planetary-defense strategies. This talk will provide an overview of recent progress in ground-based optical monitoring, including survey optimization, astrometric and photometric data processing, and follow-up observations supported by international networks.
I will highlight Korea’s expanding contributions within the International Asteroid Warning Network (IAWN), and introduce the SEJONG telescope, a newly developed 1.5-m facility dedicated to NEO discovery. Our efforts focus on advancing automated moving-object detection pipelines and establishing optimized observing strategies to increase the detection efficiency. I will also present our development of an impact-probability estimation tool to more accurately assess the threat posed by newly detected objects.
Finally, I will introduce our concept for a future planetary-defense mission, provisionally named FINALEI, which aims to conduct a flyby to characterize a target asteroid’s physical properties and subsequently perform a kinetic-impact experiment on a secondary asteroid to alter its orbit. The ultimate objective of this mission is to enable an active planetary-defense capability.

Language: Korean

Slide Language: English

Remote access procedure:

A. Web browser: Chrome - When executing the address below, a program for additional zoom operation can be installed.

B. Access: Go to  https://zoom.us/j/96778730290?pwd=guUS8r1bFbggZKMRVcSiTBnIGnZL8p.1

C. Notice: After join, Please mute your microphone. - The default setting is microphone mute. > After the presentation, during the Q&A session, you can use the microphone to ask questions.

KASI Colloquium committee (Jongsoo Kim, Kwang-Il Seon, Chang Won Lee, Hong-Kyu Moon, Hyerim Noh, Jeong-Yeol Han)

Working committee (Jinho Kim, Young-Min Kim, Seokho Lee, Junseok Hong,  Ji Yeon Seok, Jaehyun Lee)