# Units:
#  "lambda" is in Angstroms
#  "pass" is the contribution to the detector signal per photon
#         entering the atmosphere of Earth
#
# Bandpass Name(s): V
#
# Instrument: Hypothetical system developed to match known "standards"
#             of Johnson/Cousins to spectrophotometry
# 
# Determined by: M. S. Bessell
#
# Date of determination: 1990
#
# Meaning of/Reason for default column: Only available
#
# Notes:
#
# These filter curves define the "official" Johnson/Cousins BVRI
# system, as far # as I am concerned. One must take care to make sure
# that you really want these filters; ie. that the observations have
# been converted into this system. Otherwise, you will have to use
# custom filter curves (which may not be a bad idea).
# 
# Details of how/why this system is defined can be found in:
#
# Bessell, M.S. 1990, PASP, 102, 1181
#
# Read it; it will give you a good insight into how complex this 
# whole business really is.
#
# Michael Blanton
# 2002-08-19
#

typedef struct {
  double lambda;
  double pass;
} KFILTER;

KFILTER 4700. 0
KFILTER 4800. 0.03125
KFILTER 4900. 0.166326530612245
KFILTER 5000. 0.458
KFILTER 5100. 0.764705882352941
KFILTER 5200. 0.929807692307692
KFILTER 5300. 0.943396226415094
KFILTER 5400. 0.900925925925926
KFILTER 5500. 0.816363636363636
KFILTER 5600. 0.707142857142857
KFILTER 5700. 0.6
KFILTER 5800. 0.494827586206897
KFILTER 5900. 0.390677966101695
KFILTER 6000. 0.299166666666667
KFILTER 6100. 0.221311475409836
KFILTER 6200. 0.158870967741935
KFILTER 6300. 0.107142857142857
KFILTER 6400. 0.06328125
KFILTER 6500. 0.0346153846153846
KFILTER 6600. 0.0189393939393939
KFILTER 6700. 0.0126865671641791
KFILTER 6800. 0.00955882352941176
KFILTER 6900. 0.00652173913043478
KFILTER 7000. 0