Photometry

Photometry data files have the extension .mag. The following gives an example for Algol, where the columns are the component designation, filter name, the Julian date of observation, and value and error of the magnitude measured. The filter names must be one of Hp, U, B, V, R, and I.

ABC V   2445249.299     -2.60900 0.001
ABC V   2445249.304     -2.60000 0.001
ABC V   2445249.313     -2.59200 0.001