Introduction

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The Long Baseline Observatory (LBO) invites scientists to participate in the LBO's Semester 2019A Call for Proposals for the Very Long Baseline Array (VLBA), the High Sensitivity Array (HSA), and the Global 3mm VLBI Array (GMVA).

The submission deadline for Semester 2019A proposals is Wednesday, 1 August 2018, at 17:00 EDT (21:00 UTC).

The LBO strongly encourages proposers to read through the "News and Opportunities" page carefully as there are changes throughout the call for proposals.

Proposal preparation and submission remain via the NRAO Proposal Submission Tool (PST) available at NRAO Interactive Services. Note that PST use requires registration. 

Proposers who need assistance with proposal preparation or have questions regarding the Call or VLBA capabilities should submit help requests via the NRAO Helpdesk.  We especially urge proposers new to proposing for the VLBA/HSA or even those who have less experience in VLBI to use the Helpdesk in a timely fashion in advance of the proposal deadline to understand the technical use of the VLBA/HSA.

Approximately 1000 to 1200 hours of VLBA observing time are expected to be available for Open Skies in observing semester 2019A.   

Connect with NRAO

The National Radio Astronomy Observatory and Green Bank Observatory are facilities of the U.S. National Science Foundation operated under cooperative agreement by Associated Universities, Inc.

Founded in 1956, the NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NRAO telescopes is available on a competitive basis to qualified scientists after evaluation of research proposals on the basis of scientific merit, the capability of the instruments to do the work, and the availability of the telescope during the requested time. NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.

The National Science Foundation (NSF) is an independent federal agency created by Congress in 1950 "to promote the progress of science; to advance the national health, prosperity, and welfare; to secure the national defense..."

AUI collaborates with the scientific community and research sponsors to plan, build, and operate cutting-edge facilities. We cultivate excellence, deliver value, enhance education, and engage the public.