Orchestrator fails due to missing key (KeyError: 'spin1z')
https://emfollow.ligo.caltech.edu/sentry/gwcelery/issues/296/
KeyError: 'spin1z'
File "gwcelery/tasks/orchestrator.py", line 118, in handle_cbc_event
chi1 = extra_attributes['SingleInspiral'][0]['spin1z']