East Asian VLBI Network (EAVN)

Call for Proposals of the East-Asian VLBI Network(EAVN) in 2019A semester
Deadline: 1st November, 2018, 08:00 UT

Go to proposal submission


We invite proposals for the open-use observations of the East Asian VLBI Network (EAVN). In 2019A semester, 10 telescopes participate in the EAVN open use, 7 telescopes of the KVN and VERA Array (KaVA) in Korea and Japan, Nobeyama 45-m telescope in Japan, Tianma 65-m telescope and Nanshan 26-m telescope in China. Refer to the following EAVN website for more details about overview of the array and its performance, user support system, and how to prepare and submit a proposal.(https://radio.kasi.re.kr/eavn/proposal_info.php).

This open-use call is based on risk-share, and provides opportunities of VLBI observations at 22 and 43 GHz for astronomers in the world. A VLBI observation with single polarization (LHCP) and the data recording rate of 1 Gbps (total bandwidth of 256 MHz) is available in 2019A semester.

The total observation time for EAVN is up to 100 hours and observations will be scheduled between 15th January 2019 and 15th June 2019. Please note that the available telescope time and observing frequency can be differ from each other. More details can be found in the EAVN Status Report.

Target of Opportunity proposal

We do not accept ToO proposals for the EAVN full array in 2019A semester.

Proposal submission

An EAVN application form can be downloaded from the following webpage (same as KaVA):(https://radio.kasi.re.kr/kava/proposal_kava.php). Note that we do not accept ToO (Target of Opportunity) proposals for EAVN. (For your information, KaVA supports ToO observations.) The KaVA/EAVN Time Allocation Committee (TAC) will evaluate both KaVA and EAVN proposals together.

The maximum request time per proposal is limited to 24 hours for EAVN. A proposal shall contain the coversheet (two pages), scientific justification including figures (maximum of two pages), and technical justification (maximum of one page) with the minimum font size of 10 pt. Proposal submission deadline is 1st November 2018, 08:00 UT


Send an e-mail to eavnprop@kasi.re.kr if you have any inquiries regarding EAVN open use.


Mareki Honma
Director of Mizusawa VLBI Observatory, NAOJ

Jongsoo Kim
Director of Radio Astronomy Division, KASI

Zhi-Qiang Shen
Director of Shanghai Astronomical Observatory, CAS

Na Wang
Director of Xinjiang Astronomical Observatory, CAS

KASI logo image

EAVN ( East Asia VLBI Network )