Event Version Parameter List
Return the full list of all parameter estimations from all pipelines for an event version.
GET /api/v2/event-versions/GW230704_021211-v2/parameters?format=api
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"description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230704_021211-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230704_021211_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": -0.02, "upper_error": 0.21, "lower_error": -0.25, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 21.7, "upper_error": 4.3, "lower_error": -3.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 50.0, "upper_error": 10.3, "lower_error": -7.6, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 2800.0, "upper_error": 1900.0, "lower_error": -1500.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 31.6, "upper_error": 11.9, "lower_error": -7.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 20.2, "upper_error": 6.5, "lower_error": -6.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.48, "upper_error": 0.25, "lower_error": -0.23, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 52.2, "upper_error": 10.6, "lower_error": -7.8, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GWTC-4.1_GW230704_021211_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-GW230704_021211-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230704_021211_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": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 21.9, "upper_error": 4.4, "lower_error": -3.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 50.7, "upper_error": 10.5, "lower_error": -7.9, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 2700.0, "upper_error": 1900.0, "lower_error": -1500.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 32.5, "upper_error": 11.8, "lower_error": -7.8, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 20.1, "upper_error": 6.7, "lower_error": -6.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.47, "upper_error": 0.26, "lower_error": -0.23, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 53.0, "upper_error": 10.7, "lower_error": -8.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GWTC-4.1_GW230704_021211_C00:Mixed_OO3_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230704_021211-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230704_021211_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": -0.01, "upper_error": 0.21, "lower_error": -0.24, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 21.9, "upper_error": 4.4, "lower_error": -3.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": 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"na", "best": 53.0, "upper_error": 10.9, "lower_error": -8.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GWTC-4.1_GW230704_021211_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-GW230704_021211-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230704_021211_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": -0.01, "upper_error": 0.21, "lower_error": -0.24, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 21.9, "upper_error": 4.4, "lower_error": -3.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 50.7, "upper_error": 10.6, "lower_error": -7.9, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 2700.0, "upper_error": 1900.0, "lower_error": -1500.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 32.6, "upper_error": 11.8, "lower_error": -8.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 20.0, "upper_error": 6.6, "lower_error": -5.9, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.47, "upper_error": 0.26, "lower_error": -0.23, "is_upper_limit": false, 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"unit": "", "description": "na", "best": 0.47, "upper_error": 0.25, "lower_error": -0.23, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 52.9, "upper_error": 10.9, "lower_error": -8.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GWTC-4.1_GW230704_021211_C00:SEOBNRv5PHM_OO6_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230704_021211-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230704_021211_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": -0.02, 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"upper_error": 6.7, "lower_error": -5.8, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.47, "upper_error": 0.26, "lower_error": -0.23, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 53.0, "upper_error": 10.9, "lower_error": -8.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GWTC-4.1_MBTA_GW230704_021211", "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": 2.7, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "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": 0.78, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 } ] }, { "name": "GWTC-4.1_pycbc_GW230704_021211", "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": 0.037, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 3 }, { "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 } ] } ] }