Superevent Vo Event

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{
    "start": 0,
    "numRows": 3,
    "voevents": [
        {
            "voevent_type": "PR",
            "file_version": 0,
            "ivorn": "ivo://gwnet/LVC#S200219ac-1-Preliminary",
            "created": "2020-02-19 12:12:58 UTC",
            "issuer": "emfollow",
            "filename": "S200219ac-1-Preliminary.xml",
            "N": 1,
            "links": {
                "self": "https://gracedb.ligo.org/api/superevents/S200219ac/voevents/1/",
                "file": "https://gracedb.ligo.org/api/superevents/S200219ac/files/S200219ac-1-Preliminary.xml,0"
            }
        },
        {
            "voevent_type": "IN",
            "file_version": 0,
            "ivorn": "ivo://gwnet/LVC#S200219ac-2-Initial",
            "created": "2020-02-19 12:40:18 UTC",
            "issuer": "emfollow",
            "filename": "S200219ac-2-Initial.xml",
            "N": 2,
            "links": {
                "self": "https://gracedb.ligo.org/api/superevents/S200219ac/voevents/2/",
                "file": "https://gracedb.ligo.org/api/superevents/S200219ac/files/S200219ac-2-Initial.xml,0"
            }
        },
        {
            "voevent_type": "UP",
            "file_version": 0,
            "ivorn": "ivo://gwnet/LVC#S200219ac-3-Update",
            "created": "2020-02-25 23:10:37 UTC",
            "issuer": "emfollow",
            "filename": "S200219ac-3-Update.xml",
            "N": 3,
            "links": {
                "self": "https://gracedb.ligo.org/api/superevents/S200219ac/voevents/3/",
                "file": "https://gracedb.ligo.org/api/superevents/S200219ac/files/S200219ac-3-Update.xml,0"
            }
        }
    ],
    "links": {
        "self": "http://gracedb.ligo.org/apiweb/superevents/S200219ac/voevents/",
        "first": "http://gracedb.ligo.org/apiweb/superevents/S200219ac/voevents/",
        "last": "http://gracedb.ligo.org/apiweb/superevents/S200219ac/voevents/"
    }
}