New Data Product in Development: GONG H-Alpha Integral Carrington Synoptic Maps

The National Science Foundation’s (NSF’s) National Solar Observatory Integrated Synoptic Program (NISP) is seeking feedback on a new data product currently in development: GONG H-Alpha integral Carrington synoptic maps. We are especially interested in suggestions regarding the appropriate set of keywords to include in the FITS file headers, as well as comments on the current map format.

At present, the maps are provided in Carrington sin(latitude)–longitude coordinates, with a resolution of 360 × 720 pixels. Observations from selected GONG sites are corrected for limb darkening and uniformly scaled in intensity before being merged into the final synoptic map.

A selection of FITS files is available at the following link: https://drive.google.com/drive/folders/1M0ZwpBA_SW8JuMwlDP0Se75M2IQkCGQ3?usp=sharing

Please email your comments to [email protected] by 15 October 2025.

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Kevin Shuman, Luca Bertello, Olga Burtseva