New Capabilities

OPT Suite version 1.37 released 2026 April 1st

Known Issues

Subarray Scheduling Blocks

  • Interactive editing of loops in subarrays (cut/copy/paste/move in the SB tree) may cause unexpected issues. Please contact the NRAO Science Helpdesk for guidance if problems are encountered.

Improvements

Observation Preparation Tool (OPT)

Scheduling Block (SB)

Information tab

  • Corrected the issue with the Find LST Start Range button when the count was greater than one.

Static Report tab

  • Users can now display and edit the assumed start time in UTC.
  • Added Azimuth vs Elevation polar plot of sources used in the SB. This plot is generated for a defined assumed start time in LST or UTC.

Dynamic LST Validation tab

  • Antenna shadowing information has been added (applicable to D and C-configuration observations).
  • Evaluators are now grouped alphabetically.

Subarrays

  • Each subarray will show the total duration. This will allow users to see when a subarray is a different length.

Source Catalog Tool (SCT)

Images tab of a source

  • Added Azimuth vs Elevation polar plot of the selected source at the VLA.

Resource Catalog Tool (RCT)

  • Added ability to download and save search results.

Connect with NRAO

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

Founded in 1956, the NSF NRAO provides state-of-the-art radio telescope facilities for use by the international scientific community. NSF NRAO telescopes are open to all astronomers regardless of institutional or national affiliation. Observing time on NSF 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. NSF NRAO also provides both formal and informal programs in education and public outreach for teachers, students, the general public, and the media.

The U.S. National Science Foundation (U.S. 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.