Event Version Parameter List
Return the full list of all parameter estimations from all pipelines for an event version.
GET /api/v2/event-versions/GW230819_171910-v2/parameters?format=api
{ "next": null, "previous": null, "results_count": 6, "results_per_page": 20, "num_pages": 1, "page_number": 1, "results": [ { "name": "GWTC-4.1_CWB_GW230819_171910", "description": "na", "date_added": "2026-05-20", "data_url": "", "pipeline": "CWB", "pipeline_type": "search", "waveform_family": "na", "is_preferred": false, "links": [], "parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 0.011, "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": 9.9, "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_gstlal_GW230819_171910", "description": "na", "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": 0.013000000000000001, "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": 9.0, "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_GW230819_171910_C00:IMRPhenomXPHM-SpinTaylor_OO1_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230819_171910-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230819_171910_C00:IMRPhenomXPHM-SpinTaylor_OO1_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": -0.02, "upper_error": 0.36, "lower_error": -0.45, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 42.0, "upper_error": 15.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 104.0, "upper_error": 55.0, "lower_error": -23.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4100.0, "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": 72.0, "upper_error": 57.0, "lower_error": -23.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 35.0, "upper_error": 20.0, "lower_error": -18.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.66, "upper_error": 0.46, "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": 108.0, "upper_error": 55.0, "lower_error": -23.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW230819_171910_C00:Mixed_OO2_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230819_171910-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230819_171910_C00:Mixed_OO2_PE", "pipeline_type": "pe", "waveform_family": "C00:Mixed", "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": -0.04, "upper_error": 0.35, "lower_error": -0.44, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 42.0, "upper_error": 14.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 102.0, "upper_error": 37.0, "lower_error": -22.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4100.0, "upper_error": 3800.0, "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": 70.0, "upper_error": 43.0, "lower_error": -21.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 35.0, "upper_error": 20.0, "lower_error": -19.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.66, "upper_error": 0.47, "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": 106.0, "upper_error": 38.0, "lower_error": -22.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_GW230819_171910_C00:SEOBNRv5PHM_OO3_PE", "description": "na", "date_added": "2026-05-20", "data_url": "https://zenodo.org/api/records/20275769/files/IGWN-GWTC4p1-18965dda8_5-GW230819_171910-combined_PEDataRelease.hdf5/content", "pipeline": "GWTC-4.1_GW230819_171910_C00:SEOBNRv5PHM_OO3_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": -0.05, "upper_error": 0.33, "lower_error": -0.44, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 41.0, "upper_error": 12.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 101.0, "upper_error": 28.0, "lower_error": -21.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4000.0, "upper_error": 3900.0, "lower_error": -2100.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 35.0, "lower_error": -20.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 35.0, "upper_error": 19.0, "lower_error": -19.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.65, "upper_error": 0.48, "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": 105.0, "upper_error": 29.0, "lower_error": -21.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 } ] }, { "name": "GWTC-4.1_pycbc_GW230819_171910", "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": 3.5, "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": 8.9, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.82, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 } ] } ] }