{
  "events": {
    "GW231113_122623-v2": {
      "commonName": "GW231113_122623",
      "version": 2,
      "catalog.shortName": "GWTC-4.1",
      "GPS": 1383913601.9,
      "gracedb_id": "S231113bb",
      "reference": "/GWTC-4.1/",
      "jsonurl": "https://gwosc.org/eventapi/json/GWTC-4.1/GW231113_122623/v2",
      "mass_1_source": 39.8,
      "mass_1_source_lower": -9.6,
      "mass_1_source_upper": 17.2,
      "mass_1_source_unit": "M_sun",
      "mass_2_source": 26.4,
      "mass_2_source_lower": -9.5,
      "mass_2_source_upper": 8.9,
      "mass_2_source_unit": "M_sun",
      "network_matched_filter_snr": 8.6,
      "network_matched_filter_snr_lower": null,
      "network_matched_filter_snr_upper": null,
      "network_matched_filter_snr_unit": "",
      "luminosity_distance": 3400.0,
      "luminosity_distance_lower": -1700.0,
      "luminosity_distance_upper": 2400.0,
      "luminosity_distance_unit": "Mpc",
      "chi_eff": 0.33,
      "chi_eff_lower": -0.33,
      "chi_eff_upper": 0.25,
      "chi_eff_unit": "",
      "total_mass_source": 67.0,
      "total_mass_source_lower": -13.0,
      "total_mass_source_upper": 16.0,
      "total_mass_source_unit": "M_sun",
      "chirp_mass_source": 27.9,
      "chirp_mass_source_lower": -5.5,
      "chirp_mass_source_upper": 6.3,
      "chirp_mass_source_unit": "M_sun",
      "chirp_mass": null,
      "chirp_mass_lower": null,
      "chirp_mass_upper": null,
      "chirp_mass_unit": null,
      "redshift": 0.56,
      "redshift_lower": -0.25,
      "redshift_upper": 0.32,
      "redshift_unit": "",
      "far": 0.063,
      "far_lower": null,
      "far_upper": null,
      "far_unit": "1/yr",
      "p_astro": 0.99,
      "p_astro_lower": null,
      "p_astro_upper": null,
      "p_astro_unit": "",
      "final_mass_source": 63.0,
      "final_mass_source_lower": -12.0,
      "final_mass_source_upper": 15.0,
      "final_mass_source_unit": "M_sun",
      "strain": [
        {
          "GPSstart": 1383911424,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/archive/data/O4a_16KHZ_R1/1383071744/H-H1_GWOSC_O4a_16KHZ_R1-1383911424-4096.gwf"
        },
        {
          "GPSstart": 1383911424,
          "detector": "H1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/archive/data/O4a_16KHZ_R1/1383071744/H-H1_GWOSC_O4a_16KHZ_R1-1383911424-4096.hdf5"
        },
        {
          "GPSstart": 1383911424,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/archive/data/O4a_4KHZ_R1/1383071744/H-H1_GWOSC_O4a_4KHZ_R1-1383911424-4096.gwf"
        },
        {
          "GPSstart": 1383911424,
          "detector": "H1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/archive/data/O4a_4KHZ_R1/1383071744/H-H1_GWOSC_O4a_4KHZ_R1-1383911424-4096.hdf5"
        },
        {
          "GPSstart": 1383911424,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/archive/data/O4a_16KHZ_R1/1383071744/L-L1_GWOSC_O4a_16KHZ_R1-1383911424-4096.gwf"
        },
        {
          "GPSstart": 1383911424,
          "detector": "L1",
          "sampling_rate": 16384,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/archive/data/O4a_16KHZ_R1/1383071744/L-L1_GWOSC_O4a_16KHZ_R1-1383911424-4096.hdf5"
        },
        {
          "GPSstart": 1383911424,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "gwf",
          "url": "https://gwosc.org/archive/data/O4a_4KHZ_R1/1383071744/L-L1_GWOSC_O4a_4KHZ_R1-1383911424-4096.gwf"
        },
        {
          "GPSstart": 1383911424,
          "detector": "L1",
          "sampling_rate": 4096,
          "duration": 4096,
          "format": "hdf5",
          "url": "https://gwosc.org/archive/data/O4a_4KHZ_R1/1383071744/L-L1_GWOSC_O4a_4KHZ_R1-1383911424-4096.hdf5"
        }
      ],
      "parameters": {
        "GWTC-4.1_gstlal_GW231113_122623": {
          "waveform_family": "na",
          "data_url": "",
          "date_added": "2026-05-20",
          "is_preferred": false,
          "pipeline_type": "search",
          "links": {},
          "far": 0.7300000000000001,
          "far_lower": null,
          "far_upper": null,
          "far_unit": "1/yr",
          "far_meta": "na",
          "network_matched_filter_snr": 8.3,
          "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": 0.94,
          "p_astro_lower": null,
          "p_astro_upper": null,
          "p_astro_unit": "",
          "p_astro_meta": "na"
        },
        "GWTC-4.1_GW231113_122623_C00:IMRPhenomXPHM-SpinTaylor_OO1_PE": {
          "waveform_family": "C00:IMRPhenomXPHM-SpinTaylor",
          "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231113_122623-combined_PEDataRelease.hdf5/content",
          "date_added": "2026-05-20",
          "is_preferred": false,
          "pipeline_type": "pe",
          "links": {
            "na": "https://doi.org/10.5281/zenodo.20275769"
          },
          "chirp_mass_source": 27.8,
          "chirp_mass_source_lower": -5.7,
          "chirp_mass_source_upper": 6.2,
          "chirp_mass_source_unit": "M_sun",
          "chirp_mass_source_meta": "na",
          "chi_eff": 0.34,
          "chi_eff_lower": -0.33,
          "chi_eff_upper": 0.25,
          "chi_eff_unit": "",
          "chi_eff_meta": "na",
          "final_mass_source": 63.0,
          "final_mass_source_lower": -12.0,
          "final_mass_source_upper": 15.0,
          "final_mass_source_unit": "M_sun",
          "final_mass_source_meta": "na",
          "luminosity_distance": 3400.0,
          "luminosity_distance_lower": -1700.0,
          "luminosity_distance_upper": 2400.0,
          "luminosity_distance_unit": "Mpc",
          "luminosity_distance_meta": "na",
          "mass_1_source": 40.2,
          "mass_1_source_lower": -9.7,
          "mass_1_source_upper": 17.8,
          "mass_1_source_unit": "M_sun",
          "mass_1_source_meta": "na",
          "mass_2_source": 26.1,
          "mass_2_source_lower": -10.0,
          "mass_2_source_upper": 9.2,
          "mass_2_source_unit": "M_sun",
          "mass_2_source_meta": "na",
          "redshift": 0.57,
          "redshift_lower": -0.25,
          "redshift_upper": 0.32,
          "redshift_unit": "",
          "redshift_meta": "na",
          "total_mass_source": 67.0,
          "total_mass_source_lower": -13.0,
          "total_mass_source_upper": 16.0,
          "total_mass_source_unit": "M_sun",
          "total_mass_source_meta": "na"
        },
        "GWTC-4.1_GW231113_122623_C00:Mixed_OO2_PE": {
          "waveform_family": "C00:Mixed",
          "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231113_122623-combined_PEDataRelease.hdf5/content",
          "date_added": "2026-05-20",
          "is_preferred": true,
          "pipeline_type": "pe",
          "links": {
            "na": "https://doi.org/10.5281/zenodo.20275769"
          },
          "chirp_mass_source": 27.9,
          "chirp_mass_source_lower": -5.5,
          "chirp_mass_source_upper": 6.3,
          "chirp_mass_source_unit": "M_sun",
          "chirp_mass_source_meta": "na",
          "chi_eff": 0.33,
          "chi_eff_lower": -0.33,
          "chi_eff_upper": 0.25,
          "chi_eff_unit": "",
          "chi_eff_meta": "na",
          "final_mass_source": 63.0,
          "final_mass_source_lower": -12.0,
          "final_mass_source_upper": 15.0,
          "final_mass_source_unit": "M_sun",
          "final_mass_source_meta": "na",
          "luminosity_distance": 3400.0,
          "luminosity_distance_lower": -1700.0,
          "luminosity_distance_upper": 2400.0,
          "luminosity_distance_unit": "Mpc",
          "luminosity_distance_meta": "na",
          "mass_1_source": 39.8,
          "mass_1_source_lower": -9.6,
          "mass_1_source_upper": 17.2,
          "mass_1_source_unit": "M_sun",
          "mass_1_source_meta": "na",
          "mass_2_source": 26.4,
          "mass_2_source_lower": -9.5,
          "mass_2_source_upper": 8.9,
          "mass_2_source_unit": "M_sun",
          "mass_2_source_meta": "na",
          "redshift": 0.56,
          "redshift_lower": -0.25,
          "redshift_upper": 0.32,
          "redshift_unit": "",
          "redshift_meta": "na",
          "total_mass_source": 67.0,
          "total_mass_source_lower": -13.0,
          "total_mass_source_upper": 16.0,
          "total_mass_source_unit": "M_sun",
          "total_mass_source_meta": "na"
        },
        "GWTC-4.1_GW231113_122623_C00:SEOBNRv5PHM_OO3_PE": {
          "waveform_family": "C00:SEOBNRv5PHM",
          "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231113_122623-combined_PEDataRelease.hdf5/content",
          "date_added": "2026-05-20",
          "is_preferred": false,
          "pipeline_type": "pe",
          "links": {
            "na": "https://doi.org/10.5281/zenodo.20275769"
          },
          "chirp_mass_source": 28.0,
          "chirp_mass_source_lower": -5.4,
          "chirp_mass_source_upper": 6.4,
          "chirp_mass_source_unit": "M_sun",
          "chirp_mass_source_meta": "na",
          "chi_eff": 0.32,
          "chi_eff_lower": -0.33,
          "chi_eff_upper": 0.26,
          "chi_eff_unit": "",
          "chi_eff_meta": "na",
          "final_mass_source": 63.0,
          "final_mass_source_lower": -12.0,
          "final_mass_source_upper": 15.0,
          "final_mass_source_unit": "M_sun",
          "final_mass_source_meta": "na",
          "luminosity_distance": 3400.0,
          "luminosity_distance_lower": -1600.0,
          "luminosity_distance_upper": 2500.0,
          "luminosity_distance_unit": "Mpc",
          "luminosity_distance_meta": "na",
          "mass_1_source": 39.5,
          "mass_1_source_lower": -9.4,
          "mass_1_source_upper": 16.4,
          "mass_1_source_unit": "M_sun",
          "mass_1_source_meta": "na",
          "mass_2_source": 26.7,
          "mass_2_source_lower": -9.0,
          "mass_2_source_upper": 8.6,
          "mass_2_source_unit": "M_sun",
          "mass_2_source_meta": "na",
          "redshift": 0.56,
          "redshift_lower": -0.24,
          "redshift_upper": 0.32,
          "redshift_unit": "",
          "redshift_meta": "na",
          "total_mass_source": 67.0,
          "total_mass_source_lower": -12.0,
          "total_mass_source_upper": 16.0,
          "total_mass_source_unit": "M_sun",
          "total_mass_source_meta": "na"
        },
        "GWTC-4.1_MBTA_GW231113_122623": {
          "waveform_family": "na",
          "data_url": "",
          "date_added": "2026-05-20",
          "is_preferred": false,
          "pipeline_type": "search",
          "links": {},
          "far": 38.0,
          "far_lower": null,
          "far_upper": null,
          "far_unit": "1/yr",
          "far_meta": "na",
          "network_matched_filter_snr": 8.6,
          "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": 0.16,
          "p_astro_lower": null,
          "p_astro_upper": null,
          "p_astro_unit": "",
          "p_astro_meta": "na"
        },
        "GWTC-4.1_pycbc_GW231113_122623": {
          "waveform_family": "na",
          "data_url": "",
          "date_added": "2026-05-20",
          "is_preferred": false,
          "pipeline_type": "search",
          "links": {},
          "far": 0.063,
          "far_lower": null,
          "far_upper": null,
          "far_unit": "1/yr",
          "far_meta": "na",
          "network_matched_filter_snr": 8.6,
          "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": 0.99,
          "p_astro_lower": null,
          "p_astro_upper": null,
          "p_astro_unit": "",
          "p_astro_meta": "na"
        }
      }
    }
  }
}