{
    "name": "GW20190521_074359",
    "object": "G333674",
    "obsdate": "2019-05-21 07:43:59",
    "before_fromdate": "2018-05-21 07:43:59",
    "before_todate": "2019-05-21 07:43:59",
    "after_fromdate": "2019-05-21 07:43:59",
    "after_todate": "2019-06-04 07:43:59",
    "public": "1",
    "current_fits": "LIGO_-_GW20190521_074359_-_file_1.fits",
    "json_object_list_before": "LIGO_-_GW20190521_074359_-_BEFORE.json",
    "json_object_list_after": "LIGO_-_GW20190521_074359_-_AFTER.json",
    "tsv_object_list_before": "LIGO_-_GW20190521_074359_-_BEFORE.tsv",
    "tsv_object_list_after": "LIGO_-_GW20190521_074359_-_AFTER.tsv",
    "png_object_list_before": "LIGO_-_GW20190521_074359_-_BEFORE.png",
    "png_object_list_after": "LIGO_-_GW20190521_074359_-_AFTER.png",
    "grace_id": "S190521r",
    "alert_type": "Initial",
    "event_page": "https://gracedb.ligo.org/superevents/S190521r/view/",
    "instruments": "H1,L1",
    "far": "3.16754584224e-10",
    "group": "CBC",
    "skymap_fits_url": "https://gracedb.ligo.org/api/superevents/S190521r/files/bayestar.fits.gz",
    "prob_bns": "0.0",
    "prob_nsbh": "0.0",
    "prob_bbh": "0.999332344055",
    "prob_mass_gap": "0.0",
    "prob_terrestrial": "0.00066765594519",
    "prob_has_ns": "0.0",
    "prob_has_remnant": "0.0",
    "distmean": "1136.13",
    "diststd": "279.258"
}