---- The Pan-STARRS 1 Photometric Reference Ladder, Release 12.01 publication has an internal PDF link pointing here that should point to [wiki:PS1_Photometric_System] Magnier E.A., Schlafly E., Finkbeiner D., Juric M., Tonry J.L., Burgett W.S., Chambers K.C., Flewelling H.A., Kaiser N., Kudritzki R.-P., Morgan J.S., Price P.A., Sweeney W.E., Stubbs C.W., 2013 ApJS 204, 20. ----