View for listing all Superevents, retrieving individual superevents,
creating new superevents, and updating existing superevents.

GET /apiweb/superevents/S190822c/
HTTP 200 OK
Allow: GET, PATCH, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "superevent_id": "S190822c",
    "gw_id": null,
    "category": "Production",
    "created": "2019-08-22 01:30:23 UTC",
    "submitter": "emfollow",
    "t_start": 1250472616.589125,
    "t_0": 1250472617.589203,
    "t_end": 1250472618.589203,
    "far": 6.145184709956557e-18,
    "labels": [
        "ADVNO",
        "SKYMAP_READY",
        "EMBRIGHT_READY",
        "PASTRO_READY",
        "DQOK",
        "GCN_PRELIM_SENT"
    ],
    "links": {
        "files": "https://gracedb.ligo.org/api/superevents/S190822c/files/",
        "logs": "https://gracedb.ligo.org/api/superevents/S190822c/logs/",
        "self": "https://gracedb.ligo.org/api/superevents/S190822c/",
        "labels": "https://gracedb.ligo.org/api/superevents/S190822c/labels/",
        "voevents": "https://gracedb.ligo.org/api/superevents/S190822c/voevents/",
        "emobservations": "https://gracedb.ligo.org/api/superevents/S190822c/emobservations/"
    }
}