# Units:
#  "lambda" is in Angstroms
#  "pass" is the contribution to the detector signal per photon
#         entering the atmosphere of Earth
#
# Bandpass Name(s): B
#
# 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 3600. 0
KFILTER 3700. 0.0405405405405405
KFILTER 3800. 0.176315789473684
KFILTER 3900. 0.726923076923077
KFILTER 4000. 1.15
KFILTER 4100. 1.19268292682927
KFILTER 4200. 1.19047619047619
KFILTER 4300. 1.13720930232558
KFILTER 4400. 1.0625
KFILTER 4500. 0.947777777777778
KFILTER 4600. 0.804347826086956
KFILTER 4700. 0.680851063829787
KFILTER 4800. 0.558333333333333
KFILTER 4900. 0.43265306122449
KFILTER 5000. 0.325
KFILTER 5100. 0.230392156862745
KFILTER 5200. 0.144230769230769
KFILTER 5300. 0.089622641509434
KFILTER 5400. 0.0398148148148148
KFILTER 5500. 0.00818181818181818
KFILTER 5600. 0