The Presolar Grain Database (PGD) contains the vast majority of isotope data (published and unpublished) on presolar grains and was first released as a collection of spreadsheets in 2009. It has been a helpful tool used by many researchers in cosmochemistry and astrophysics. However, over the years, accumulated errors compromised major parts of the PGD. Here, we provide a fresh start, with the PGD for silicon carbide (SiC) grains rebuilt from the ground up. The PGD is provided here in two formats: (1) as Microsoft Excel (.xlsx) file, containing the main database as one large spreadsheet and additional information on extra spreadsheets, (2) as comma-separated ASCII (.csv) file containing the main database.

{"references": ["Stephan T., Bose M., Boujibar A., Davis A. M., Gyngard F., Hoppe P., Hynes K. M., Liu N., Nittler L. R., Ogliore R. C., and Trappitsch R. (2021) The Presolar Grain Database for silicon carbide\u2014grain type assignments (abstract). Lunar Planet. Sci. 52, #2358."]}