Science Ready Data Products

The Science Ready Data Products (SRDP) Initiative

The SRDP Initiative aims to improve the user experience for radio interferometry data from the VLA and ALMA by providing users with science quality data and tools for data processing and discovery through the NRAO archive.

Quick Access to SRDP Features: Visit the NRAO Archive https://data.nrao.edu

 Download calibrated Measurement Sets for VLA or ALMA:

  1. Go to https://data.nrao.edu
  2. Search for some data (e.g., project code, target name, position/radius)
  3. Click the '+' to see more detail about the project
  4. For ALMA - Click the blue 'Download Restored MS' button for the desired data
  5. For VLA - Click the 'Select for Download icon' and click 'Download'

Run ALMA User-Defined Imaging (AUDI):

  1. Follow steps 1-3 from above
  2. Click the blue 'Re-imaging' button for the desired data
  3. Fill out the dialog box for a frequency-based or velocity-based cube
  4. A valid setting for the frequency-based cube is filled by default for the selected spectral window

 See the tutorial video for AUDI for more detail.

    Pre-requisites:

    The SRDP system features are publicly available; any user from any country or ALMA region may utilize the SRDP system. Logins are only required if a user wishes to access proprietary data or local delivery of data to the NRAO Lustre file systems. Accounts can be created at my.nrao.edu.

    Account Linking

    Users were previously able to link their NRAO and ALMA accounts via the ALMA Science portal, which enabled users to use their NRAO account to access both proprietary VLA/VLBA and ALMA data. However, this capability was disabled by the ALMA project. Thus, users who did not previously link their accounts will likely need to login with their ALMA account to access proprietary ALMA data and their NRAO account to access proprietary NRAO data.

    Help with SRDP products:

    Please visit the NRAO helpdesk and submit a ticket under the ‘Data Products’ Topic.

    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.