Observation Preparation

To use the VLA, scheduling blocks must be prepared using the "Observation Preparation Tool," or OPT. The OPT is available at:

https://obs.vla.nrao.edu/opt

Once an observing proposal has been approved for scheduling, about 2-4 weeks before the relevant array configuration in the observing semester, the details of the proposal will appear as a project with program blocks in the OPT. Source and resource catalogs will also be populated as much as possible. The proposers will be notified by email when this has occurred, and when the scheduling queue will be accepting scheduling blocks. Please adhere to the current restrictions posted on the OPT web page above; things do change and the OPT page reflects our latest requirements for accepting scheduling blocks.

After consulting the documentation, any remaining questions or help required in making scheduling blocks can be directed to the NRAO Helpdesk at http://help.nrao.edu using your my.nrao.edu/PST user account.

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.