Data Processing

AIPS

 The NRAO Astronomical Image Processing System (AIPS ) is a software package for interactive (and, optionally, batch) calibration and editing of radio interferometric data and for the calibration, construction, display and analysis of astronomical images made from those data using Fourier synthesis methods.

AIPS Cookbook

 The AIPS CookBook is intended to help beginning users of the NRAO Astronomical Image Processing System (AIPS) by providing a recipe approach to the most basic AIPS operations.

AIPS VLBA Calibration Pipeline

The VLBA data calibration pipeline processing using the VLBARUN procedure in AIPS.

CASA

 The Common Astronomy Software Applications (CASA) package is a C++ data reduction toolset bundled under an iPython interface.

Caltech VLBI Programs

 A set of interactive programs developed at Caltech that are used by many VLBA observers for very long baseline synthesis imaging, visualization, and self-calibration.

AIPS and CASA VLBI Tutorials

 Very Long Baseline Interferometry (VLBI) Data reduction tutorials in AIPS using VLBA data and in CASA using EVN data.

Post Observing Notes/Issues

 Notes on specific issues that affected data quality and/or require particular attention for data processing and interpretation.

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.