Event Version Parameter List
Return the full list of all parameter estimations from all pipelines for an event version.
GET /api/v2/event-versions/GW230814_061920-v2/parameters?format=api
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"2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230814_061920-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230814_061920_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": 0.05, "upper_error": 0.28, "lower_error": -0.27, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 45.1, "upper_error": 12.2, "lower_error": -9.6, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 104.0, "upper_error": 24.0, "lower_error": -19.0, 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false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW230814_061920_C00:Mixed_OO3_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230814_061920-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230814_061920_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": 0.07, "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": 46.0, "upper_error": 12.0, "lower_error": -10.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": 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"is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.62, "upper_error": 0.44, "lower_error": -0.27, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 112.0, "upper_error": 25.0, "lower_error": -22.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW230814_061920_C00:SEOBNRv5PHM_OO6_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230814_061920-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230814_061920_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": [ { 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"mass_2_source", "unit": "M_sun", "description": "na", "best": 40.0, "upper_error": 17.0, "lower_error": -16.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.65, "upper_error": 0.41, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 111.0, "upper_error": 26.0, "lower_error": -21.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_MBTA_GW230814_061920", "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": 0.041, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 3 }, { "name": 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"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 } ] } ] }