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Distortion correction #353

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Distortion correction #353

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f75d2e8
send camera name to astrometry.net service for SIP correction
griffin-h Dec 2, 2022
d24d54a
copy SIP coefficients from astrometry.net service into header
griffin-h Dec 2, 2022
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10 changes: 7 additions & 3 deletions banzai/astrometry.py
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@ def do_stage(self, image):
'naxis2': image.shape[0],
'ra': image.ra,
'dec': image.dec,
'camera_name': image.camera,
'statistics': False,
'filename': image.filename}
try:
Expand All @@ -72,16 +73,19 @@ def do_stage(self, image):
image.meta['WCSERR'] = FAILED_WCS
return image

if not astrometry_response.json()['solved']:
astrometry_json = astrometry_response.json()
if not astrometry_json['solved']:
logger.warning('WCS solution failed.', image=image)
image.meta['WCSERR'] = FAILED_WCS
return image

header_keywords_to_update = ['CTYPE1', 'CTYPE2', 'CRPIX1', 'CRPIX2', 'CRVAL1',
'CRVAL2', 'CD1_1', 'CD1_2', 'CD2_1', 'CD2_2']
'CRVAL2', 'CD1_1', 'CD1_2', 'CD2_1', 'CD2_2',
'SIPA_1_1', 'SIPA_0_2', 'SIPA_2_0', 'SIPB_1_1', 'SIPB_0_2', 'SIPB_2_0']

for keyword in header_keywords_to_update:
image.meta[keyword] = astrometry_response.json()[keyword]
if keyword in astrometry_json:
image.meta[keyword] = astrometry_json[keyword]

image.meta['RA'], image.meta['DEC'] = get_ra_dec_in_sexagesimal(image.meta['CRVAL1'],
image.meta['CRVAL2'])
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