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=6
{ "next": "https://gwosc.org/api/v2/event-versions?format=api&include-default-parameters=true&page=7", "previous": "https://gwosc.org/api/v2/event-versions?format=api&include-default-parameters=true&page=5", "results_count": 358, "results_per_page": 20, "num_pages": 18, "page_number": 6, "results": [ { "name": "GW230717_102139", "shortName": "GW230717_102139-v1", "gps": 1373624517.1, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230717_102139-v1?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 29.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.7, "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": 8.3, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230712_090405", "shortName": "GW230712_090405-v1", "gps": 1373187863.9, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230712_090405-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 16.5, "upper_error": 11.1, "lower_error": -3.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": -0.03, "upper_error": 0.35, "lower_error": -0.31, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 45.0, "upper_error": 20.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 2000.0, "upper_error": 2600.0, "lower_error": -1000.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 32.0, "upper_error": 17.0, "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": 13.1, "upper_error": 14.6, "lower_error": -5.9, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.37, "upper_error": 0.36, "lower_error": -0.17, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 46.0, "upper_error": 21.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.018, "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": 9.5, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230709_122727", "shortName": "GW230709_122727-v1", "gps": 1372940865.2, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230709_122727-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 31.0, "upper_error": 9.4, "lower_error": -6.6, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.08, "upper_error": 0.3, "lower_error": -0.31, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 71.0, "upper_error": 19.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4600.0, "upper_error": 3500.0, "lower_error": -2400.0, "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": 16.0, "lower_error": -11.0, "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": 13.0, "lower_error": -13.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.73, "upper_error": 0.43, "lower_error": -0.34, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 74.0, "upper_error": 20.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "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": "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": 10.2, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230709_063445", "shortName": "GW230709_063445-v1", "gps": 1372919703.1, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230709_063445-v1?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": 0.83, "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": 7.9, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230708_230935", "shortName": "GW230708_230935-v1", "gps": 1372892993.5, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230708_230935-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 42.5, "upper_error": 9.7, "lower_error": -7.8, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.01, "upper_error": 0.27, "lower_error": -0.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 99.0, "upper_error": 20.0, "lower_error": -15.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 3500.0, "upper_error": 2300.0, "lower_error": -1600.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 64.0, "upper_error": 20.0, "lower_error": -15.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 39.0, "upper_error": 14.0, "lower_error": -15.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.58, "upper_error": 0.29, "lower_error": -0.24, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 103.0, "upper_error": 21.0, "lower_error": -16.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.0037, "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": 10.0, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230708_071859", "shortName": "GW230708_071859-v1", "gps": 1372835957.4, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230708_071859-v1?format=api", "default_parameters": [ { "name": "far", "unit": "1/yr", "description": "na", "best": 1.5, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.73, "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": 9.1, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230708_053705", "shortName": "GW230708_053705-v1", "gps": 1372829843.1, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230708_053705-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 22.2, "upper_error": 4.4, "lower_error": -3.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.07, "upper_error": 0.23, "lower_error": -0.24, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 49.4, "upper_error": 9.7, "lower_error": -7.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 3300.0, "upper_error": 2000.0, "lower_error": -1700.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 29.1, "upper_error": 8.2, "lower_error": -5.4, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 22.8, "upper_error": 5.5, "lower_error": -5.4, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.55, "upper_error": 0.27, "lower_error": -0.25, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 51.9, "upper_error": 10.2, "lower_error": -7.6, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.21999999999999997, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "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": 8.9, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230707_124047", "shortName": "GW230707_124047-v1", "gps": 1372768865.3, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230707_124047-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 35.1, "upper_error": 8.6, "lower_error": -5.3, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": -0.05, "upper_error": 0.25, "lower_error": -0.29, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 78.0, "upper_error": 18.0, "lower_error": -11.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 4500.0, "upper_error": 2300.0, "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": 46.1, "upper_error": 12.2, "lower_error": -8.2, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 36.4, "upper_error": 10.6, "lower_error": -9.8, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.71, "upper_error": 0.29, "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": 82.0, "upper_error": 19.0, "lower_error": -12.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.0011, "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": false, "decimal_places": 2 }, { "name": "network_matched_filter_snr", "unit": "", "description": "na", "best": 11.9, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 } ] }, { "name": "GW230706_104333", "shortName": "GW230706_104333-v1", "gps": 1372675431.2, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230706_104333-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 11.8, "upper_error": 1.7, "lower_error": -1.1, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.19, "upper_error": 0.13, "lower_error": -0.14, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 26.5, "upper_error": 4.3, "lower_error": -2.8, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "luminosity_distance", "unit": "Mpc", "description": "na", "best": 1930.0, "upper_error": 920.0, "lower_error": -980.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "mass_1_source", "unit": "M_sun", "description": "na", "best": 16.3, "upper_error": 5.4, "lower_error": -3.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "mass_2_source", "unit": "M_sun", "description": "na", "best": 11.5, "upper_error": 2.6, "lower_error": -2.7, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "redshift", "unit": "", "description": "na", "best": 0.35, "upper_error": 0.14, "lower_error": -0.16, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "total_mass_source", "unit": "M_sun", "description": "na", "best": 27.9, "upper_error": 4.4, "lower_error": -3.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 1 }, { "name": "far", "unit": "1/yr", "description": "na", "best": 0.23, "upper_error": null, "lower_error": null, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "p_astro", "unit": "", "description": "na", "best": 0.98, "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": "GW230704_212616", "shortName": "GW230704_212616-v1", "gps": 1372541194.7, "version": 1, "catalog": "GWTC-4.0", "detectors": [ "H1", "L1" ], "detail_url": "https://gwosc.org/api/v2/event-versions/GW230704_212616-v1?format=api", "default_parameters": [ { "name": "chirp_mass_source", "unit": "M_sun", "description": "na", "best": 55.0, "upper_error": 23.0, "lower_error": -14.0, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 0 }, { "name": "chi_eff", "unit": "", "description": "na", "best": 0.28, "upper_error": 0.34, "lower_error": -0.43, "is_upper_limit": false, "is_lower_limit": false, "decimal_places": 2 }, { "name": "final_mass_source", "unit": "M_sun", "description": "na", "best": 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