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"""Set color terms for MegaCam""" 

 

from lsst.pipe.tasks.colorterms import Colorterm, ColortermDict 

 

# 2018-09-04: Michael Wood-Vasey: 

# The color terms should translate between the photometric reference catalog 

# and the system transmission of MegaCam. 

# I've added a set of color terms here for the PS1 reference catalog 

# assuming that the PS1 catalog is on the AB system. 

config.data = { 

"ps1*": ColortermDict(data={ 

"u": Colorterm(primary="u", secondary="g", c0=0.0, c1=-0.241), 

"g": Colorterm(primary="g", secondary="r", c0=0.0, c1=-0.153), 

"r": Colorterm(primary="r", secondary="g", c0=0.0, c1=0.024), 

"i": Colorterm(primary="i", secondary="r", c0=0.0, c1=0.085), 

"z": Colorterm(primary="z", secondary="i", c0=0.0, c1=-0.074), 

}), 

"e2v": ColortermDict(data={ 

"u": Colorterm(primary="u", secondary="g", c0=0.0, c1=-0.241), 

"g": Colorterm(primary="g", secondary="r", c0=0.0, c1=-0.153), 

"r": Colorterm(primary="r", secondary="g", c0=0.0, c1=0.024), 

"i": Colorterm(primary="i", secondary="r", c0=0.0, c1=0.085), 

"z": Colorterm(primary="z", secondary="i", c0=0.0, c1=-0.074), 

}), 

}