# The Sunspot Solar Observatory Data Archive: Continuing Operations at the Dunn Solar Telescope

## TL;DR

The Sunspot Solar Observatory Data Archive stores solar data collected since 2018, offering insights into solar processes and space weather.

## Contribution

The archive provides a unique, continuously growing dataset of solar observations with calibrated and inversion-ready data.

## Key findings

- The archive contains over 374 TiB of data from more than 520 observing days.
- It includes spectropolarimetric inversions for magnetic fields, temperatures, and velocity flows.
- The data supports research on plasma processes and solar activity during Solar Cycle 25.

## Abstract

The Sunspot Solar Observatory Data Archive (SSODA) stores data acquired with the suite of instruments at the Richard B. Dunn Solar Telescope (DST) from February 2018 to the present. The instrumentation at the DST continues to provide high cadence imaging, spectroscopy, and polarimetry of the solar photosphere and chromosphere across a wavelength range from 3500 Å to 11,000 Å. At the time of writing, the archive contains approximately 374 TiB of data across more than 520 observing days (starting on February 1, 2018). These numbers are approximate as the DST remains operational, and is actively adding new data to the archive. The SSODA includes both raw and calibrated data. A subset of the archive contains the results of photospheric and chromospheric spectropolarimetric inversions using the Hazel-2.0 code to obtain maps of magnetic fields, temperatures, and velocity flows. The SSODA represents a unique resource for the investigation of plasma processes throughout the solar atmosphere, the origin of space weather events, and the properties of active regions throughout the rise of Solar Cycle 25.