!# $r$ filter from Thuan & Gunn (1976), PASP 88, 543.
"r"
"energy"       
"TG"
 5900.   0.000
 6000.   0.104
 6100.   0.809
 6200.   0.957
 6300.   0.983
 6400.   0.991
 6500.   0.996
 6600.   1.000
 6700.   0.991
 6800.   0.861
 6900.   0.591
 7000.   0.417
 7100.   0.270
 7200.   0.130
 7300.   0.052
 7400.   0.009
 7500.   0.000
