self-calibration for Arlo

I got no research time in today until I headed to the airport, where I worked on my presentation to the Landolt Standards & 21st Century Photometry Symposium in honor of Arlo Landolt (LSU). I will be talking about self-calibration, the set of methods that have replaced Landoldt's (amazingly productive and important) standard-star catalogs for the calibration of huge surveys, which can (in principle) now be self-calibrated. I will talk about both the theory and the practice of the self-calibration arts.