"""
The :mod:`constants` module provides a number of constants used by the :class:`SLRealizer` worker class and its descendants.
"""
from astropy.coordinates import SkyCoord
[docs]def return_zeropoint():
"""
returns zeropoint for the SDSS magnitude system
"""
return 22.5
[docs]def return_obs_RA_DEC():
"""
Return OM10's lensed system's position
"""
return SkyCoord('03h 32m 30s', '10d 00m 24s')
[docs]def get_filter_AB_offset():
return 0.0
[docs]def get_flux_err():
return 0.01 # unit : percentage
[docs]def get_flux_err_std():
return 0.005 # unit : percentage
[docs]def get_first_moment_err():
return 0.01 # unit : percentage
[docs]def get_first_moment_err_std():
return 0.005
[docs]def get_second_moment_err():
return 0.15 # changed from 0.05
[docs]def get_second_moment_err_std():
return 0.03 # changed from 0.01
[docs]def get_x_min():
return -5.0
[docs]def get_y_min():
return -5.0
[docs]def get_x_max():
return 5.0
[docs]def get_y_max():
return 5.0
[docs]def get_ellipticity_cut():
return 0.4
[docs]def get_SDSS_pixel_arcsec_conversion():
return 0.396