Infrared nonredundant mask imaging at Palomar

We have recently begun a program of high resolution infrared imaging at Palomar Observatory. As a part of this effort, we have investigated the use of nonredundant masks both as an imaging technique and as a method of analyzing various aspects of our imaging system. In particular, we have applied the technique to a bright star and binary system using a three-hole mask. We find the method is useful for understanding certain systematic biases in our data, as well as in producing high quality images despite sparse uv coverage. We find that the use of multi-r0 apertures along with a large bandwidth does not significantly hamper image, reconstruction, but provides significant extra coverage in the uv plane.