{"name":"GW230518_125908","grace_id":"S230518h","run":"O4a","gcn_notice":"https://gcn.gsfc.nasa.gov/notices_l/S230518h.lvc","gcn_circular":"https://gcn.nasa.gov/circulars?query=S230518h","aliases":["GW230518_125908"],"versions":[{"version":1,"catalog":"GWTC-4.0","detail_url":"https://gwosc.org/api/v2/event-versions/GW230518_125908-v1?format=json"}]}