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from pytools import fileutil
# This dictionary maps an instrument into an instrument class
# The instrument class handles instrument specific keywords
inst_mappings={'WFPC2': 'WFPC2WCS',
'ACS': 'ACSWCS'
}
DEGTORAD = fileutil.DEGTORAD
RADTODEG = fileutil.RADTODEG
# A dictionary which lists the allowed corrections for each instrument.
# These are the default corrections applied also in the pipeline.
#Dgeo correction is applied separately.
allowed_corrections={'WFPC2': ['MakeWCS','CompSIP'],
'ACS': ['TDDCorr', 'MakeWCS','CompSIP', 'VACorr']
}
# A list of instrument specific keywords
# Every instrument class must have methods which define each of these
# as class attributes.
ins_spec_kw = ['ltv1', 'ltv2', 'parity', 'binned','vafactor', 'chip',
'naxis1', 'naxis2', 'filter1', 'filter2']
# A list of keywords defined in the primary header.
# The HSTWCS class sets this as attributes
prim_hdr_kw = ['detector', 'offtab', 'idctab', 'date-obs',
'pa_v3', 'ra_targ', 'dec_targ']
# These are the keywords which are archived before MakeWCS is run
basic_wcs = ['CD1_1', 'CD1_2', 'CD2_1', 'CD2_2', 'CRVAL1','CRVAL2','CTYPE1', 'CTYPE2',
'CRPIX1', 'CRPIX2', 'CTYPE1', 'CTYPE2', 'ORIENTAT']
dgeo_vals = {'ACS':
{'naxis1':65, 'naxis2':33, 'extver':1, 'crpix1':33.5, 'crpix2':16.5,
'cdelt1':1., 'cdelt2':1., 'crval1':2048., 'crval2':1024.}
}
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