def _update_ra_dec(self):
fits_header = self.fits_header
self._ra, self._dec = wcs.xy2sky(self.pixel_x, self.pixel_y,
float(fits_header[astrom.CRPIX1]),
float(fits_header[astrom.CRPIX2]),
float(fits_header[astrom.CRVAL1]),
float(fits_header[astrom.CRVAL2]),
wcs.parse_cd(fits_header),
wcs.parse_pv(fits_header),
wcs.parse_order_fit(fits_header))
def _update_ra_dec(self):
fits_header = self.fits_header
self._ra, self._dec = wcs.xy2sky(self.pixel_x, self.pixel_y,
float(fits_header['CRPIX1']),
float(fits_header['CRPIX2']),
float(fits_header['CRVAL1']),
float(fits_header['CRVAL2']),
wcs.parse_cd(fits_header),
wcs.parse_pv(fits_header),
wcs.parse_order_fit(fits_header))
def test_parse_cd_values(self):
cd = wcs.parse_cd(self.header)
assert_that(cd, has_length(2))
assert_that(cd[0], has_length(2))
assert_that(cd[1], has_length(2))
# CD1_1, CD1_2
assert_that(cd[0],
contains(-5.156837193510000E-05, -3.588985558218000E-07))
# CD2_1, CD2_2
assert_that(cd[1],
contains(-1.674871346376000E-07, 5.178515755263000E-05))
def test_parse_cd_values(self):
cd = wcs.parse_cd(self.header)
assert_that(cd, has_length(2))
assert_that(cd[0], has_length(2))
assert_that(cd[1], has_length(2))
# CD1_1, CD1_2
assert_that(cd[0],
contains(-5.156837193510000E-05, -3.588985558218000E-07))
# CD2_1, CD2_2
assert_that(cd[1],
contains(-1.674871346376000E-07, 5.178515755263000E-05))