The BATC filter set belongs to Dr. Rogier Windhorst of Arizona State University. Observers wishing to use these filters should request permission to use these filters from Dr. Windhorst (Rogier.Windhorst@asu.edu) prior to submitting their proposals to the NOAO TAC. Dr. Windhorst will inform NOAO when he has given approval for use of the filter. Please make clear in your request to Dr. Windhorst the following information: Proposed Telescope/Instrument; PI of intended proposal; General Science goals of the proposal.
Rogier Windhorst has provided the following figure showing the transmission of the ASU/Windhorst filter set, Click Here . Note that the filters are labeled a through k, m through p, these short "letter" names being listed in the "master list" (see below), which will allow you to match the filters to the wavelength name. For example, "a" corresponds to filter "337 BATC", etc..
In this directory are located asci files containing the transmission of these filters as a function of wavelength. See the "README" file for additional information (in some browsers the text in the README file will show up at the end of the file listing).