The first paper based on the KMTNet observation data was published in the Astrophysical Journal on December 1, 2015 (Shvartzvald, et al. ApJ, 814, 111). The Galactic bulge monitoring data were obtained at three KMTNet sites during the test run of June 2015.
The international collaboration team determined accurately the mass of a binary lens by using the data from the Spitzer space telescope and several ground-based optical telescopes. The KMTNet data played a major role to detect the brightness deviation caused by the binary lens.