Call for Proposals 2023A (VLBI)

Term 2023A Category KVN
Submit start (UT) 2022-09-27 07:00:00 Deadline (UT) 2022-11-01 08:00:00
TeX file KVN_Proposal_2023A_VLBI.tex Sample pdf KVN_Proposal_2023A_VLBI.pdf
Call for Proposals 2023A (KVN VLBI)
Proposal submission deadline: 2022 November 1, 08:00 UT
KVN website:

The Korean VLBI Network (KVN) invites scientific proposals for VLBI observations during the 2023A season from astronomers around the world. Observations of successful proposals will be scheduled between 2023 January 15 and June 15. Proposals should be submitted via the KVN website ( before the deadline of UT 08:00 (KST 17:00) on 2022 November 1.

** Korean VLBI Network (KVN) **
The Korean VLBI Network (KVN) is a dedicated mm-VLBI network, operated by the Korea Astronomy and Space Science Institute (KASI, Its three 21m radio telescopes are located around South Korea in Seoul, Ulsan, and Jeju Island. The baseline length ranges from 305km to 476 km.

The simultaneous multi-frequency (22/43/86/129 GHz) observing mode in a dual-polarization is available. Data rates of 1, 2, 4, 8 and 16/32 Gbps (limited time and observing mode available in case of 16/32 Gbps, see the details in the KVN status report) are supported. Total time of 500 hours is planned for this call. If requested in the proposals, the observing schedule can be allocated over a year, until 2024 January 15, but the total observation time will not be increased. Proposers should use the KVN VLBI observing application form and carefully follow the instructions on the KVN website. The scientific and technical justification must be provided within 3 pages. Details of the information and current status of the KVN can be found in the KVN status report on the KVN website ( Proposals should be submitted via the KVN website.

The geodetic VLBI station of Sejong operated by the National Geographic Information Institute (NGII) will jointly operate the open-use program in shared risk mode. The Sejong 22m telescope (KSJ) operates at 22 and 43 GHz, supporting a simultaneous multi-frequency observing mode. Please refer to more details of KSJ in the EAVN status report.

** Note on the EATING VLBI observations**
According to the MoA between INAF (The Istituto Nazionale de Astrofisica) and KASI up to 30 hours of observing time in VLBI mode are allocated to approved EATING VLBI projects. These projects have to be submitted both to the Italian and Korean TACs with the standard form selecting "EATING VLBI" mode in the project type. Approved projects will be observed up to 30 hours/semester. Projects exceeding 30 hours will be scheduled together with all other projects according to their relative grades. PIs of these proposals must be associated with INAF or KASI. The detailed formation can be found at the website:

Kee-Tae Kim
Director of Radio Astronomy Division, KASI