Posted by Juie Shetye | June 14, 2025 | Useful Resources

We are proud to announce the release of the Sunspot Solar Observatory Data Archive (SSODA), which houses high-cadence imaging, spectroscopic, and spectropolarimetric data collected by the Richard B. Dunn Solar Telescope (DST) from February 2018 to present. Both raw and calibrated datasets are freely available through the SSODA. Calibrated datasets include high-level corrections, such as speckle-burst reconstructions carried out with the KISIP package, and a subset of calibrated datasets feature the results of photospheric and chromospheric spectropolarimetric inversions using the Hazel-2.0 code.

The SSODA constitutes a unique resource for investigating solar-atmospheric plasma processes, the origins of space-weather events, and the evolution of active regions during the rise and peak of Solar Cycle 25.

The SSODA has been accepted for publication in Solar Physics, and a preprint of the article can be found at: https://arxiv.org/abs/2505.21794

The archive can be accessed at the following link: http://ssoc.nmsu.edu/
A search tool is available for assistance in locating suitable datasets: http://ssoc.nmsu.edu/search/ObservationsDatabase/
For assistance with archive products, please contact the archive support astronomer, Dr Sean Sellers ([email protected])

For discussion science planning with DST, please contact Dr Juie Shetye ([email protected])