{"name":"200121_031748","grace_id":"S200121aa","run":"O3b","gcn_notice":"https://gcn.gsfc.nasa.gov/notices_l/S200121aa.lvc","gcn_circular":"https://gcn.nasa.gov/circulars?query=S200121aa","aliases":["200121_031748"],"versions":[{"version":1,"catalog":"GWTC-3-marginal","detail_url":"https://gwosc.org/api/v2/event-versions/200121_031748-v1?format=json"}]}