{
  "events": {
    "GW190731_140936-v1": {
      "commonName": "GW190731_140936",
      "version": 1,
      "catalog.shortName": "GWTC-2",
      "GPS": 1248617394.6,
      "gracedb_id": "S190731aa",
      "reference": "/GWTC-2/",
      "jsonurl": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1",
      "mass_1_source": 41.5,
      "mass_1_source_lower": -9.0,
      "mass_1_source_upper": 12.2,
      "mass_1_source_unit": "M_sun",
      "mass_2_source": 28.8,
      "mass_2_source_lower": -9.5,
      "mass_2_source_upper": 9.7,
      "mass_2_source_unit": "M_sun",
      "network_matched_filter_snr": 8.460146466288636,
      "network_matched_filter_snr_lower": null,
      "network_matched_filter_snr_upper": null,
      "network_matched_filter_snr_unit": "",
      "luminosity_distance": 3300.0,
      "luminosity_distance_lower": -1720.0,
      "luminosity_distance_upper": 2390.0,
      "luminosity_distance_unit": "Mpc",
      "chi_eff": 0.06,
      "chi_eff_lower": -0.24,
      "chi_eff_upper": 0.24,
      "chi_eff_unit": "",
      "total_mass_source": 70.1,
      "total_mass_source_lower": -11.3,
      "total_mass_source_upper": 15.8,
      "total_mass_source_unit": "M_sun",
      "chirp_mass_source": 29.5,
      "chirp_mass_source_lower": -5.2,
      "chirp_mass_source_upper": 7.1,
      "chirp_mass_source_unit": "M_sun",
      "chirp_mass": 46.6,
      "chirp_mass_lower": -8.2,
      "chirp_mass_upper": 6.8,
      "chirp_mass_unit": "M_sun",
      "redshift": 0.55,
      "redshift_lower": -0.26,
      "redshift_upper": 0.31,
      "redshift_unit": "",
      "far": 0.20584212311867794,
      "far_lower": null,
      "far_upper": null,
      "far_unit": "1/yr",
      "p_astro": 0.966501,
      "p_astro_lower": null,
      "p_astro_upper": null,
      "p_astro_unit": "",
      "final_mass_source": 67.0,
      "final_mass_source_lower": -10.8,
      "final_mass_source_upper": 14.6,
      "final_mass_source_unit": "M_sun",
      "strain": [
        {
          "GPSstart": 1248617379,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 32,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_16KHZ_R1-1248617379-32.gwf"
        },
        {
          "GPSstart": 1248617379,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 32,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_16KHZ_R1-1248617379-32.hdf5"
        },
        {
          "GPSstart": 1248617379,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 32,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_16KHZ_R1-1248617379-32.txt.gz"
        },
        {
          "GPSstart": 1248617379,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 32,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_4KHZ_R1-1248617379-32.gwf"
        },
        {
          "GPSstart": 1248617379,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 32,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_4KHZ_R1-1248617379-32.hdf5"
        },
        {
          "GPSstart": 1248617379,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 32,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_4KHZ_R1-1248617379-32.txt.gz"
        },
        {
          "GPSstart": 1248615347,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_16KHZ_R1-1248615347-4096.gwf"
        },
        {
          "GPSstart": 1248615347,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_16KHZ_R1-1248615347-4096.hdf5"
        },
        {
          "GPSstart": 1248615347,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_16KHZ_R1-1248615347-4096.txt.gz"
        },
        {
          "GPSstart": 1248615347,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_4KHZ_R1-1248615347-4096.gwf"
        },
        {
          "GPSstart": 1248615347,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_4KHZ_R1-1248615347-4096.hdf5"
        },
        {
          "GPSstart": 1248615347,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/H-H1_GWOSC_4KHZ_R1-1248615347-4096.txt.gz"
        },
        {
          "GPSstart": 1248617379,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 32,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_16KHZ_R1-1248617379-32.gwf"
        },
        {
          "GPSstart": 1248617379,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 32,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_16KHZ_R1-1248617379-32.hdf5"
        },
        {
          "GPSstart": 1248617379,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 32,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_16KHZ_R1-1248617379-32.txt.gz"
        },
        {
          "GPSstart": 1248617379,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 32,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_4KHZ_R1-1248617379-32.gwf"
        },
        {
          "GPSstart": 1248617379,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 32,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_4KHZ_R1-1248617379-32.hdf5"
        },
        {
          "GPSstart": 1248617379,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 32,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_4KHZ_R1-1248617379-32.txt.gz"
        },
        {
          "GPSstart": 1248615347,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_16KHZ_R1-1248615347-4096.gwf"
        },
        {
          "GPSstart": 1248615347,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_16KHZ_R1-1248615347-4096.hdf5"
        },
        {
          "GPSstart": 1248615347,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_16KHZ_R1-1248615347-4096.txt.gz"
        },
        {
          "GPSstart": 1248615347,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_4KHZ_R1-1248615347-4096.gwf"
        },
        {
          "GPSstart": 1248615347,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_4KHZ_R1-1248615347-4096.hdf5"
        },
        {
          "GPSstart": 1248615347,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "txt",
          "url": "https://gwosc.org/eventapi/json/GWTC-2/GW190731_140936/v1/L-L1_GWOSC_4KHZ_R1-1248615347-4096.txt.gz"
        }
      ],
      "parameters": {
        "gwtc2_gstlal_allsky_GW190731_140936": {
          "waveform_family": "na",
          "data_url": "",
          "date_added": "2020-10-15",
          "is_preferred": false,
          "pipeline_type": "search",
          "links": {},
          "far": 0.20584212311867794,
          "far_lower": null,
          "far_upper": null,
          "far_unit": "1/yr",
          "far_meta": "na",
          "network_matched_filter_snr": 8.460146466288636,
          "network_matched_filter_snr_lower": null,
          "network_matched_filter_snr_upper": null,
          "network_matched_filter_snr_unit": "",
          "network_matched_filter_snr_meta": "na",
          "p_astro": 0.966501,
          "p_astro_lower": null,
          "p_astro_upper": null,
          "p_astro_unit": "",
          "p_astro_meta": "na"
        },
        "gwtc2_pe_7GW190731_140936": {
          "waveform_family": "PublicationSamples",
          "data_url": "https://dcc.ligo.org/public/0169/P2000223/007/GW190731_140936.tar",
          "date_added": "2021-03-09",
          "is_preferred": true,
          "pipeline_type": "pe",
          "links": {
            "posterior-samples": "https://dcc.ligo.org/LIGO-P2000223/public",
            "skymap": "https://dcc.ligo.org/public/0169/P2000223/007/all_skymaps.tar"
          },
          "chirp_mass": 46.6,
          "chirp_mass_lower": -8.2,
          "chirp_mass_upper": 6.8,
          "chirp_mass_unit": "M_sun",
          "chirp_mass_meta": "na",
          "chirp_mass_source": 29.5,
          "chirp_mass_source_lower": -5.2,
          "chirp_mass_source_upper": 7.1,
          "chirp_mass_source_unit": "M_sun",
          "chirp_mass_source_meta": "na",
          "chi_eff": 0.06,
          "chi_eff_lower": -0.24,
          "chi_eff_upper": 0.24,
          "chi_eff_unit": "",
          "chi_eff_meta": "na",
          "final_mass_source": 67.0,
          "final_mass_source_lower": -10.8,
          "final_mass_source_upper": 14.6,
          "final_mass_source_unit": "M_sun",
          "final_mass_source_meta": "na",
          "luminosity_distance": 3300.0,
          "luminosity_distance_lower": -1720.0,
          "luminosity_distance_upper": 2390.0,
          "luminosity_distance_unit": "Mpc",
          "luminosity_distance_meta": "na",
          "mass_1_source": 41.5,
          "mass_1_source_lower": -9.0,
          "mass_1_source_upper": 12.2,
          "mass_1_source_unit": "M_sun",
          "mass_1_source_meta": "na",
          "mass_2_source": 28.8,
          "mass_2_source_lower": -9.5,
          "mass_2_source_upper": 9.7,
          "mass_2_source_unit": "M_sun",
          "mass_2_source_meta": "na",
          "redshift": 0.55,
          "redshift_lower": -0.26,
          "redshift_upper": 0.31,
          "redshift_unit": "",
          "redshift_meta": "na",
          "total_mass_source": 70.1,
          "total_mass_source_lower": -11.3,
          "total_mass_source_upper": 15.8,
          "total_mass_source_unit": "M_sun",
          "total_mass_source_meta": "na"
        },
        "gwtc2_pe_GW190731_140936": {
          "waveform_family": "PublicationSamples",
          "data_url": "https://dcc.ligo.org/public/0169/P2000223/005/GW190731_140936.tar",
          "date_added": "2020-10-23",
          "is_preferred": false,
          "pipeline_type": "pe",
          "links": {
            "posterior-samples": "https://dcc.ligo.org/LIGO-P2000223/public",
            "skymap": "https://dcc.ligo.org/public/0169/P2000223/005/all_skymaps.tar"
          },
          "chirp_mass": 47.2,
          "chirp_mass_lower": -8.1,
          "chirp_mass_upper": 6.8,
          "chirp_mass_unit": "M_sun",
          "chirp_mass_meta": "na",
          "chirp_mass_source": 28.4,
          "chirp_mass_source_lower": -4.5,
          "chirp_mass_source_upper": 6.8,
          "chirp_mass_source_unit": "M_sun",
          "chirp_mass_source_meta": "na",
          "chi_eff": 0.08,
          "chi_eff_lower": -0.24,
          "chi_eff_upper": 0.24,
          "chi_eff_unit": "",
          "chi_eff_meta": "na",
          "final_mass_source": 63.9,
          "final_mass_source_lower": -9.8,
          "final_mass_source_upper": 14.4,
          "final_mass_source_unit": "M_sun",
          "final_mass_source_meta": "na",
          "luminosity_distance": 3970.0,
          "luminosity_distance_lower": -2070.0,
          "luminosity_distance_upper": 2560.0,
          "luminosity_distance_unit": "Mpc",
          "luminosity_distance_meta": "na",
          "mass_1_source": 39.3,
          "mass_1_source_lower": -8.2,
          "mass_1_source_upper": 11.8,
          "mass_1_source_unit": "M_sun",
          "mass_1_source_meta": "na",
          "mass_2_source": 28.0,
          "mass_2_source_lower": -8.4,
          "mass_2_source_upper": 8.9,
          "mass_2_source_unit": "M_sun",
          "mass_2_source_meta": "na",
          "redshift": 0.65,
          "redshift_lower": -0.3,
          "redshift_upper": 0.32,
          "redshift_unit": "",
          "redshift_meta": "na",
          "total_mass_source": 67.1,
          "total_mass_source_lower": -10.2,
          "total_mass_source_upper": 15.3,
          "total_mass_source_unit": "M_sun",
          "total_mass_source_meta": "na"
        },
        "gwtc2_pycbc_highmass_GW190731_140936": {
          "waveform_family": "na",
          "data_url": "",
          "date_added": "2020-10-15",
          "is_preferred": false,
          "pipeline_type": "search",
          "links": {},
          "far": 0.2815827125882269,
          "far_lower": null,
          "far_upper": null,
          "far_unit": "1/yr",
          "far_meta": "na",
          "network_matched_filter_snr": 8.184770274431232,
          "network_matched_filter_snr_lower": null,
          "network_matched_filter_snr_upper": null,
          "network_matched_filter_snr_unit": "",
          "network_matched_filter_snr_meta": "na",
          "p_astro": 0.96276,
          "p_astro_lower": null,
          "p_astro_upper": null,
          "p_astro_unit": "",
          "p_astro_meta": "na"
        }
      }
    }
  }
}