Global VLBI
Global VLBI
Users interested in the maximum possible angular resolution, or extremely long observations in a single track, should consider submitting a Global VLBI proposal. Global VLBI falls into two categories:
- Global 3mm VLBI (GMVA)
- Global cm VLBI
NOTE: submissions by email, fax, or paper will not be considered for any Global VLBI opportunity.
GMVA
GMVA projects are correlated at the Max Planck Institute for Radio Astronomy in Bonn, Germany. Users interested in GMVA should submit proposals via the NRAO Proposal Submission Tool (PST) at the usual VLA/VLBA deadline: The Wednesday closest to February 1 and August 1 by 1700 Eastern Time. New users are strongly encouraged to contact the VLBA and/or GMVA staff to get assistance in preparing their proposal.
Global cm VLBI
Global cm VLBI involves combining the VLBA with the European VLBI Network (EVN). Proposals for Global cm VLBI must be prepared and submitted using the EVN NorthStar Tool. The EVN Northstar tool will automatically send copies of Global cm VLBI proposals to NRAO for assessment. Submission deadlines for Global cm VLBI do NOT follow the normal NRAO schedule. Instead, the proposal submission deadlines are are February 1, June 1, and October 1 by 23:59:59 UT. Additional guidelines for EVN and Global cm VLBI can be found at the EVN Guidelines for Proposal Submission and the Using the EVN website.
