Abstract: The Spherical Library provides an efficient and accurate mathematical representation of shapes on the celestial sphere, such as sky coverage and footprints. Shapes of arbitrary complexity and size can be dynamically created from simple building blocks, whose exact area is also analytically computed. This methodology is also perfectly suited for censoring problematic parts of datasets, e.g., bad seeing, satellite trails or diffraction spikes of bright stars.
Credit: Budavári, Tamás; Dobos, László; Fekete, György; Gray, Jim; Szalay, Alex
Preferred citation method: http://adsabs.harvard.edu/abs/2010PASP..122.1375B
Reason: Updated code entry.