Event Version Parameter List
Return the full list of all parameter estimations from all pipelines for an event version.
GET /api/v2/event-versions/GW231118_071402-v2/parameters?format=api
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"date_added": "2026-05-20", "data_url": "", "pipeline": "gstlal", "pipeline_type": "search", "waveform_family": "na", "is_preferred": false, "links": [], "parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 0.0046, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 4 }, { "name": "network_matched_filter_snr", "unit": "", "description": "na", "best": 9.2, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.99, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": true, "decimal_places": 2 } ] }, { "name": "GWTC-4.1_GW231118_071402_C00:IMRPhenomXO4a_OO1_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231118_071402-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW231118_071402_C00:IMRPhenomXO4a_OO1_PE", "pipeline_type": "pe", "waveform_family": "C00:IMRPhenomXO4a", "is_preferred": false, "links": [ { "url": "https://doi.org/10.5281/zenodo.20275769", "label": "na", "description": "Zenodo record for additional PE data products" } ], "parameters": [ { "name": "chi_eff", "unit": "", "description": "na", "best": 0.1, "upper_error": 0.28, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 30.2, "upper_error": 8.1, "lower_error": -6.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 17.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4400.0, "upper_error": 3500.0, "lower_error": -2300.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 42.0, "upper_error": 15.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 29.0, "upper_error": 11.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.7, "upper_error": 0.43, "lower_error": -0.32, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 72.0, "upper_error": 18.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW231118_071402_C00:IMRPhenomXPHM-SpinTaylor_OO2_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231118_071402-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW231118_071402_C00:IMRPhenomXPHM-SpinTaylor_OO2_PE", "pipeline_type": "pe", "waveform_family": "C00:IMRPhenomXPHM-SpinTaylor", "is_preferred": false, "links": [ { "url": "https://doi.org/10.5281/zenodo.20275769", "label": "na", "description": "Zenodo record for additional PE data products" } ], "parameters": [ { "name": "chi_eff", "unit": "", "description": "na", "best": 0.13, "upper_error": 0.29, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 30.5, "upper_error": 8.3, "lower_error": -6.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 18.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4300.0, "upper_error": 3500.0, "lower_error": -2300.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 43.0, "upper_error": 15.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 30.0, "upper_error": 11.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.69, "upper_error": 0.43, "lower_error": -0.32, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 73.0, "upper_error": 19.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW231118_071402_C00:Mixed_OO3_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231118_071402-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW231118_071402_C00:Mixed_OO3_PE", "pipeline_type": "pe", "waveform_family": "C00:Mixed", "is_preferred": false, "links": [ { "url": "https://doi.org/10.5281/zenodo.20275769", "label": "na", "description": "Zenodo record for additional PE data products" } ], "parameters": [ { "name": "chi_eff", "unit": "", "description": "na", "best": 0.12, "upper_error": 0.29, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 30.3, "upper_error": 8.0, "lower_error": -6.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 17.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4300.0, "upper_error": 3600.0, "lower_error": -2300.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 43.0, "upper_error": 15.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 29.0, "upper_error": 11.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.69, "upper_error": 0.44, "lower_error": -0.32, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 72.0, "upper_error": 18.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW231118_071402_C00:Mixed+XO4a_OO4_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231118_071402-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW231118_071402_C00:Mixed+XO4a_OO4_PE", "pipeline_type": "pe", "waveform_family": "C00:Mixed+XO4a", "is_preferred": true, "links": [ { "url": "https://doi.org/10.5281/zenodo.20275769", "label": "na", "description": "Zenodo record for additional PE data products" } ], "parameters": [ { "name": "chi_eff", "unit": "", "description": "na", "best": 0.12, "upper_error": 0.29, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 30.3, "upper_error": 8.0, "lower_error": -6.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 17.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4300.0, "upper_error": 3600.0, "lower_error": -2300.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 43.0, "upper_error": 15.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 29.0, "upper_error": 11.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.69, "upper_error": 0.44, "lower_error": -0.32, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 72.0, "upper_error": 18.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW231118_071402_C00:NRSur7dq4_OO5_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231118_071402-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW231118_071402_C00:NRSur7dq4_OO5_PE", "pipeline_type": "pe", "waveform_family": "C00:NRSur7dq4", "is_preferred": false, "links": [ { "url": "https://doi.org/10.5281/zenodo.20275769", "label": "na", "description": "Zenodo record for additional PE data products" } ], "parameters": [ { "name": "chi_eff", "unit": "", "description": "na", "best": 0.11, "upper_error": 0.28, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 30.1, "upper_error": 7.9, "lower_error": -6.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 68.0, "upper_error": 17.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4300.0, "upper_error": 3700.0, "lower_error": -2200.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 43.0, "upper_error": 15.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 29.0, "upper_error": 11.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.69, "upper_error": 0.45, "lower_error": -0.31, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 72.0, "upper_error": 18.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW231118_071402_C00:SEOBNRv5PHM_OO6_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW231118_071402-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW231118_071402_C00:SEOBNRv5PHM_OO6_PE", "pipeline_type": "pe", "waveform_family": "C00:SEOBNRv5PHM", "is_preferred": false, "links": [ { "url": "https://doi.org/10.5281/zenodo.20275769", "label": "na", "description": "Zenodo record for additional PE data products" } ], "parameters": [ { "name": "chi_eff", "unit": "", "description": "na", "best": 0.11, "upper_error": 0.3, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 30.4, "upper_error": 7.7, "lower_error": -6.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 17.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4300.0, "upper_error": 3600.0, "lower_error": -2200.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 43.0, "upper_error": 15.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 29.4, "upper_error": 10.6, "lower_error": -9.7, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.69, "upper_error": 0.44, "lower_error": -0.32, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 72.0, "upper_error": 18.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_MBTA_GW231118_071402", "description": "na", "date_added": "2026-05-20", "data_url": "", "pipeline": "MBTA", "pipeline_type": "search", "waveform_family": "na", "is_preferred": false, "links": [], "parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 0.5, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "network_matched_filter_snr", "unit": "", "description": "na", "best": 9.2, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.93, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 } ] }, { "name": "GWTC-4.1_pycbc_GW231118_071402", "description": "na", "date_added": "2026-05-20", "data_url": "", "pipeline": "pycbc", "pipeline_type": "search", "waveform_family": "na", "is_preferred": false, "links": [], "parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 0.00022, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 5 }, { "name": "network_matched_filter_snr", "unit": "", "description": "na", "best": 9.2, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.99, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": true, "decimal_places": 2 } ] } ] }