Solar Radial Velocity Archive

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Modern extremely precisŧe radial velocity spectrographs are now being built with the capacity to feed light from the sun into the instrument in order to aid our understanding of the instrumental characteristics and the Doppler noise caused by convective motion on the surface of stars. The NASA-NSF Exoplanet Observational Research (NN-EXPLORE) program and the NASA Exoplanet Science Institute (NExScI) located at the California Institute of Technology are working together to provide the community access to the solar data products from as many instruments as possible. Reduced solar data products from the NEID spectrograph built by the Pennsylvania State University are currently available for download.


  • A cabling issue with the solar telescope has caused pointing errors for solar data taken 05 Feb 2023 onward and these data should be assessed before including in any analysis. We will remove this notice when the issue has been resolved.
  • Due to a bug in a pipeline dependency, recently processed solar RVs may show a large offset and should be considered untrustworthy. We will remove this notice when the issue has been resolved.
  • 23A data are being ingested/processed with a turnaround slightly longer than 24 hours.
  • 22B data are also being ingested/processed with data from the semester being made available as it is processed with the expectation that all data from semester 22B will be available by mid April 2023.
  • The NEID pipeline has been significantly updated (see NEID DRP docs and changelog) and previous semesters of data will be reprocessed starting with the most recent data and working backwards. We expect all data to be reprocessed by September 1, 2023.
  • Use the Advanced Search page if you wish to access rejected files.

Instrument Observation date (UTC) Data level

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