Event Version List
Return all event versions
Query Parameters
name-contains=<string>release=<cat1>[,<cat2>]min-<param-name>=<value>max-<param-name>=<value>lastver=<bool>: iftrueor empty, include only the last version of each event on the list. Defaults to false.include-default-parameters: iftrueor empty, include a list with the preferred values for default parameters.pagesize=<int>: Number of results to return per page.
Find the full list of allowed parameter <param-name>s in the /default-parameters/ endpoint.
Example:
GET /api/v2/event-versions?format=api&include-default-parameters=true&page=14
{ "next": "https://gwosc.org/api/v2/event-versions?format=api&include-default-parameters=true&page=15", "previous": "https://gwosc.org/api/v2/event-versions?format=api&include-default-parameters=true&page=13", "results_count": 671, "results_per_page": 20, "num_pages": 34, "page_number": 14, "results": [ { "name": "GW231013_135504", "shortName": "GW231013_135504-v1", "gps": 1381240522.4, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231013_135504-v1?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 64.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.54, "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": 8.4, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231013_135504", "shortName": "GW231013_135504-v2", "gps": 1381240522.4, "version": 2, "catalog": "GWTC-4.1", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231013_135504-v2?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 15.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.53, "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": 8.4, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231008_142521", "shortName": "GW231008_142521-v1", "gps": 1380810339.8, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231008_142521-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 29.0, "upper_error": 6.9, "lower_error": -5.7, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": -0.01, "upper_error": 0.25, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 15.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 3000.0, "upper_error": 2500.0, "lower_error": -1300.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 45.0, "upper_error": 17.0, "lower_error": -12.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 25.6, "upper_error": 10.7, "lower_error": -9.7, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.51, "upper_error": 0.33, "lower_error": -0.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 71.0, "upper_error": 16.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.0016, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 4 }, { "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": "network_matched_filter_snr", "unit": "", "description": "na", "best": 9.3, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231008_142521", "shortName": "GW231008_142521-v2", "gps": 1380810339.8, "version": 2, "catalog": "GWTC-4.1", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231008_142521-v2?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 29.0, "upper_error": 6.9, "lower_error": -5.7, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": -0.01, "upper_error": 0.25, "lower_error": -0.28, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 69.0, "upper_error": 15.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 3000.0, "upper_error": 2500.0, "lower_error": -1300.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 45.0, "upper_error": 17.0, "lower_error": -12.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 25.6, "upper_error": 10.7, "lower_error": -9.7, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.51, "upper_error": 0.33, "lower_error": -0.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 71.0, "upper_error": 16.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.0015, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 4 }, { "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": "network_matched_filter_snr", "unit": "", "description": "na", "best": 9.3, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231007_134720", "shortName": "GW231007_134720-v1", "gps": 1380721658.8, "version": 1, "catalog": "GWTC-4.1", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231007_134720-v1?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 8.3, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.63, "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": 8.1, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231005_144455", "shortName": "GW231005_144455-v1", "gps": 1380552313.4, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231005_144455-v1?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 60.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.55, "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": 7.3, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231005_144455", "shortName": "GW231005_144455-v2", "gps": 1380552313.4, "version": 2, "catalog": "GWTC-4.1", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231005_144455-v2?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 14.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.52, "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": 7.3, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231005_091549", "shortName": "GW231005_091549-v1", "gps": 1380532567.5, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231005_091549-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 21.3, "upper_error": 4.8, "lower_error": -3.5, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": -0.03, "upper_error": 0.24, "lower_error": -0.26, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 48.0, "upper_error": 10.8, "lower_error": -7.9, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 3800.0, "upper_error": 2500.0, "lower_error": -1900.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 28.8, "upper_error": 10.1, "lower_error": -6.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 21.2, "upper_error": 6.3, "lower_error": -6.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.62, "upper_error": 0.32, "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": 50.2, "upper_error": 11.3, "lower_error": -8.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.04, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 3 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.99, "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": 11.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231005_091549", "shortName": "GW231005_091549-v2", "gps": 1380532567.5, "version": 2, "catalog": "GWTC-4.1", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231005_091549-v2?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 21.3, "upper_error": 4.8, "lower_error": -3.5, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": -0.03, "upper_error": 0.24, "lower_error": -0.26, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 48.0, "upper_error": 10.8, "lower_error": -7.9, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 3800.0, "upper_error": 2500.0, "lower_error": -1900.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 28.8, "upper_error": 10.1, "lower_error": -6.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 21.2, "upper_error": 6.3, "lower_error": -6.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.62, "upper_error": 0.32, "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": 50.2, "upper_error": 11.3, "lower_error": -8.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.04, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 3 }, { "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": "network_matched_filter_snr", "unit": "", "description": "na", "best": 11.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231005_021030", "shortName": "GW231005_021030-v1", "gps": 1380507049.0, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231005_021030-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 54.0, "upper_error": 17.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.1, "upper_error": 0.36, "lower_error": -0.37, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 127.0, "upper_error": 36.0, "lower_error": -25.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 6300.0, "upper_error": 4600.0, "lower_error": -3200.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 84.0, "upper_error": 29.0, "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": 50.0, "upper_error": 22.0, "lower_error": -20.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.93, "upper_error": 0.53, "lower_error": -0.42, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 133.0, "upper_error": 38.0, "lower_error": -25.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.01, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 3 }, { "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": "network_matched_filter_snr", "unit": "", "description": "na", "best": 10.4, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW231005_021030", "shortName": "GW231005_021030-v2", "gps": 1380507049.0, "version": 2, "catalog": "GWTC-4.1", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW231005_021030-v2?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 54.0, "upper_error": 17.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.1, "upper_error": 0.36, "lower_error": -0.37, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 127.0, "upper_error": 36.0, "lower_error": -25.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 6300.0, "upper_error": 4600.0, "lower_error": -3200.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 84.0, "upper_error": 29.0, "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": 50.0, "upper_error": 22.0, "lower_error": -20.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, 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