fix query for DR8
@@ -555,7 +555,7 @@ class SDSSClass(BaseQuery):
if not matches:
request_payload = self._args_to_payload(
- specobj_fields=['instrument', 'run2d', 'plate',
+ specobj_fields=['run2d', 'plate',
'mjd', 'fiberID'],
coordinates=coordinates, radius=radius, spectro=True,
plate=plate, mjd=mjd, fiberID=fiberID,
