A catalog of targets with interferometric data in the NPOI archive

The Navy Precision Optical Interferometer (NPOI) has been in operation since 1996 and has built a significant data archive of interferometric observations over a range of visible wavelengths. Here we present a catalog of ~600 objects with NPOI data including the year(s) of observation(s) and how many scans were obtained for each target, as well as statistics on the targets' properties. The sample includes a wide range of single stars and binary systems, some of which has been published previously. Our intent in this paper is to let the community know exactly when we observed a given target, and how many observations were obtained each year. We welcome collaboration with researchers interested in discovering if NPOI data can help their programs.