Once FITS, Always FITS? Astronomical Infrastructure in Transition

The flexible interchange transport system (FITS) file format has become the de facto standard for sharing, analyzing, and archiving astronomical data over the last four decades. FITS was adopted by astronomers in the early 1980s to overcome incompatibilities between operating systems. On the back of FITS' success, astronomical data became both backward compatible and easily shareable. However, new advances in the astronomical instrumentation, computational technologies, and analytic techniques have resulted in new data that do not work well within the traditional FITS format. Tensions have arisen between the desire to update the format to meet new analytic challenges and adherence to the original edict for the FITS file format to be backward compatible. We examine three inflection points in the governance of FITS: first, initial development and success, second, widespread acceptance and governance by the working group, and third, the challenges to FITS in a new era of increasing data and computational complexity within astronomy.