Default to CEL when COORDSYS is missing.
@@ -1010,7 +1010,7 @@ class HpxGeom(MapGeom):
try:
coordsys = header[conv.coordsys]
except KeyError:
- coordsys = header['COORDSYS']
+ coordsys = header.get('COORDSYS', 'CEL')
try:
region = header['HPX_REG']
