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RAS in KOREA Current status

This document outlines the current status and goals of radio astronomy in Korea, focusing on both domestic and international activities. It highlights technical studies, political actions, and the need for enhanced cooperation with government and various services. Additionally, it discusses international radio regulations and domestic laws, aiming to improve sharing and protection activities. The framework of organizations like ITU-R and WRC is detailed, along with information on the Korean VLBI Network (KVN) and its facilities, which represent advanced capabilities in global astronomy.

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RAS in KOREA Current status

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  1. RAS in KOREACurrent status

  2. Final Goals for Freedom • Challenge and Change • - Domestic and International Activities • (Technical studies and Political Actions) • - Needs for a Good Relationship with • Government Peoples and Active Services • Modify International Radio Regulations • Modify Domestic radio Law •  Registration RA sites

  3. What can WE do for Protection & Sharing Activities • Technical Studies • - Domestic Activities (Korea ITU-R) • - International Activities • : ITU-R (SG7, WP7D), CPM • Political Activities • - Domestic Activities (Korea WRC-12 WG4) • - International Activities • : WRC (/3-4 year) • : regional meetings(APG, RAFCAP, IUCAF)-/year

  4. Protection & Sharing Activities • Major Domestic Activities

  5. Protection & Sharing Activities • Major International Activities

  6. Structure of Korea ITU-R (before 2008)

  7. Structure of WRC-12 Korea PG

  8. WRC-11 Related Issues

  9. WRC-11 Related Issues

  10. WRC-11 Related Issues

  11. 본원(대덕연구단지)

  12. 국내 전파망원경 현황 13

  13. Observatory Longitude ( o ' ") Latitude ( ' ") Ant(m) Operating Bands Remarks TRAO (KASI) 127 22 18 36 23 54 13.7 86-116, 127-175 GHz S, C, VLBI Yonsei Univ. (KVN) 126 56 35 37 33 44 21 2.2-2.8, 8-9, 22-24, 42-44, 86-116, 127-150 GHz S, C, VLBI Ulsan Univ (KVN) 129 15 04 35 32 33 21 " S, C, VLBI Tamna Univ. (KVN) 126 27 43 33 17 18 21 " S, C, VLBI K-SRBL (KASI) 127 22 18 36 23 54 2 x 2 410 MHz, 610 MHz, 500 MHz-18 GHz (연속파) S, C IRS (MIC) 127 32 58 37 09 01 6, 10 30-100 MHz, 100-500 MHz, 500-2500 MHz C SRAO (Seoul Natl. Univ.) 126 57 19 37 27 15 6 85-115 GHz, 200-270 GHz S SRT (Geongi High School) 127 00 07 37 18 48 2 1400-1427 MHz S * (S : single dish, C : Continuum, VLBI : Very Long Baseine Interferometry) Radio Telescopes in KOREA

  14. THE MOST POWERFUL mm-VLBI NETWORK SYSTEM ON OUR PLANET! TOP Brand Multi Frequency & Simultaneous Obs. mm-VLBI system high speed Correllator system east Asia VLBI center

  15. Taeduk Radio Astronomy Observatory, 14m

  16. KVN : Korean VLBI Network (21m  3 dishes)Seoul – Yonsei Univ.Ulsan – Ulsan Univ.Jeju – Tamna Univ. Operating Frequency Bands21.5-23.5 GHz 42-44 GHz 86-129 GHz

  17. The 2nd Radio Facility of Korea • KVN (Korean VLBI Network) • 3 × 21m Antennas • 4 Channels (22, 43, 86, 129 GHz) Simultaneous Observing System • Multi-Channel Phase Correction System • Korea & Japan Correlator- 16Recorders for EAVN VERA 22/43GHz phase ref. test (Jung et al.) r 0.99

  18. KVN-Recent State and Future System

  19. KVN-Recent State and Future Observations

  20. VSOP2 East Asian VLBI Network Korea-Japan Joint VLBI Network CVN KVN VERA/JVN ROH2009

  21. 22/43 GHz Test Observations Orion-KL, H2O and SiO Maser Line Simultaneous Observation Results !!!!! on October 28th 2008

  22. VLBI Test Observations

  23. VLBI Test Observations Ulsan-Tamna Yonsei-Tamna Yonsei-Ulsan • Source : NRAO150 • Date : Oct. 12, 2009 • Freq. : 42.809 GHz (Continuum)

  24. Correlator - Korea-Japan Joint VLBI Correlator - 16 Recorders (8 Mark5B, 4 VERA2000+DMS-24, 4 K5) - 16 RVDB (Raw VLBI Data Buffer) - Data Archive (100TB, 1PB in future) - Serve of VLBI data analysis - Backupsystem - e-VLBI

  25. KJJVC(Korea-Japan Joint VLBI Correrlator)

  26. Future Plan of KVN 2008 Ulsan RAO KVN Yonsei RAO Tamna RAO TEST of KVN+VERA VLBIOBS. 2009 2010 East-ASIAVLBI Center 2011 VLBI with 3stations of KVN <VLBI TEST with VERA> Operating with J-K Correlator Lunch with 86/129 GHz

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