Return the full list of all parameter estimations from all pipelines for an event version.

GET /api/v2/event-versions/GW230529_181500-v2/parameters?format=api&page=3
HTTP 200 OK
Allow: GET, HEAD, OPTIONS
Content-Type: application/json
Vary: Accept

{
    "next": null,
    "previous": "https://gwosc.org/api/v2/event-versions/GW230529_181500-v2/parameters?format=api&page=2",
    "results_count": 45,
    "results_per_page": 20,
    "num_pages": 3,
    "page_number": 3,
    "results": [
        {
            "name": "GWTC-4.0_GW230529_181500_C00:SEOBNRv5PHM:LowSpinSecondary_CC14_PE",
            "description": "na",
            "date_added": "2025-08-26",
            "data_url": "https://zenodo.org/api/records/16053484/files/IGWN-GWTC4p0-0f954158d_720-GW230529_181500-combined_PEDataRelease.hdf5/content",
            "pipeline": "GWTC-4.0_GW230529_181500_C00:SEOBNRv5PHM:LowSpinSecondary_CC14_PE",
            "pipeline_type": "pe",
            "waveform_family": "C00:SEOBNRv5PHM:LowSpinSecondary",
            "is_preferred": false,
            "links": [
                {
                    "url": "https://doi.org/10.5281/zenodo.16053483",
                    "label": "na",
                    "description": "Zenodo record for additional PE data products"
                }
            ],
            "parameters": [
                {
                    "name": "chirp_mass_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 1.94,
                    "upper_error": 0.04,
                    "lower_error": -0.04,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "chi_eff",
                    "unit": "",
                    "description": "na",
                    "best": -0.08,
                    "upper_error": 0.09,
                    "lower_error": -0.18,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "luminosity_distance",
                    "unit": "Mpc",
                    "description": "na",
                    "best": 196.0,
                    "upper_error": 111.0,
                    "lower_error": -98.0,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 0
                },
                {
                    "name": "mass_1_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 3.76,
                    "upper_error": 0.58,
                    "lower_error": -1.27,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "mass_2_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 1.4,
                    "upper_error": 0.6,
                    "lower_error": -0.17,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "redshift",
                    "unit": "",
                    "description": "na",
                    "best": 0.04,
                    "upper_error": 0.02,
                    "lower_error": -0.02,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "total_mass_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 5.15,
                    "upper_error": 0.43,
                    "lower_error": -0.66,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                }
            ]
        },
        {
            "name": "GWTC-4.0_GW230529_181500_C00:SEOBNRv5PHM:LowSpinSecondary_RR14_PE",
            "description": "Re-weighted samples used to approximate fix for Bilby Bug",
            "date_added": "2026-05-22",
            "data_url": "https://zenodo.org/api/records/17602505/files/IGWN-GWTC4p0-38214bd95_724-GW230529_181500-combined_PEDataRelease.hdf5/content",
            "pipeline": "GWTC-4.0_GW230529_181500_C00:SEOBNRv5PHM:LowSpinSecondary_RR14_PE",
            "pipeline_type": "pe",
            "waveform_family": "C00:SEOBNRv5PHM:LowSpinSecondary",
            "is_preferred": false,
            "links": [
                {
                    "url": "https://doi.org/10.5281/zenodo.16053483",
                    "label": "Rerun PE Data Products in Zenodo",
                    "description": "Zenodo record for additional PE data products"
                }
            ],
            "parameters": [
                {
                    "name": "chirp_mass_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 1.94,
                    "upper_error": 0.04,
                    "lower_error": -0.04,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "chi_eff",
                    "unit": "",
                    "description": "na",
                    "best": -0.08,
                    "upper_error": 0.09,
                    "lower_error": -0.19,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "luminosity_distance",
                    "unit": "Mpc",
                    "description": "na",
                    "best": 195.0,
                    "upper_error": 112.0,
                    "lower_error": -98.0,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 0
                },
                {
                    "name": "mass_1_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 3.76,
                    "upper_error": 0.57,
                    "lower_error": -1.29,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "mass_2_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 1.4,
                    "upper_error": 0.61,
                    "lower_error": -0.17,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "redshift",
                    "unit": "",
                    "description": "na",
                    "best": 0.04,
                    "upper_error": 0.02,
                    "lower_error": -0.02,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "total_mass_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 5.16,
                    "upper_error": 0.42,
                    "lower_error": -0.68,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                }
            ]
        },
        {
            "name": "GWTC-4.0_GW230529_181500_C00:SEOBNRv5PHM:LowSpinSecondary_RW14_PE",
            "description": "Re-weighted samples used to approximate fix for Bilby Bug",
            "date_added": "2025-10-28",
            "data_url": "https://zenodo.org/api/records/17014085/files/IGWN-GWTC4p0-1a206db3d_721-GW230529_181500-combined_PEDataRelease.hdf5/content",
            "pipeline": "GWTC-4.0_GW230529_181500_C00:SEOBNRv5PHM:LowSpinSecondary_RW14_PE",
            "pipeline_type": "pe",
            "waveform_family": "C00:SEOBNRv5PHM:LowSpinSecondary",
            "is_preferred": false,
            "links": [
                {
                    "url": "https://doi.org/10.5281/zenodo.17014085",
                    "label": "Reweighted PE Data Products in Zenodo",
                    "description": "Zenodo record for additional PE data products"
                }
            ],
            "parameters": [
                {
                    "name": "chirp_mass_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 1.94,
                    "upper_error": 0.04,
                    "lower_error": -0.04,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "chi_eff",
                    "unit": "",
                    "description": "na",
                    "best": -0.08,
                    "upper_error": 0.09,
                    "lower_error": -0.19,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "luminosity_distance",
                    "unit": "Mpc",
                    "description": "na",
                    "best": 195.0,
                    "upper_error": 112.0,
                    "lower_error": -98.0,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 0
                },
                {
                    "name": "mass_1_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 3.76,
                    "upper_error": 0.57,
                    "lower_error": -1.29,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "mass_2_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 1.4,
                    "upper_error": 0.61,
                    "lower_error": -0.17,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "redshift",
                    "unit": "",
                    "description": "na",
                    "best": 0.04,
                    "upper_error": 0.02,
                    "lower_error": -0.02,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                },
                {
                    "name": "total_mass_source",
                    "unit": "M_sun",
                    "description": "na",
                    "best": 5.16,
                    "upper_error": 0.42,
                    "lower_error": -0.68,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 2
                }
            ]
        },
        {
            "name": "GWTC-4.0_MBTA_GW230529_181500",
            "description": "na",
            "date_added": "2025-08-26",
            "data_url": "",
            "pipeline": "MBTA",
            "pipeline_type": "search",
            "waveform_family": "na",
            "is_preferred": false,
            "links": [],
            "parameters": [
                {
                    "name": "far",
                    "unit": "1/yr",
                    "description": "na",
                    "best": 0.00022,
                    "upper_error": null,
                    "lower_error": null,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 5
                },
                {
                    "name": "network_matched_filter_snr",
                    "unit": "",
                    "description": "na",
                    "best": 11.4,
                    "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-4.0_pycbc_GW230529_181500",
            "description": "na",
            "date_added": "2025-08-26",
            "data_url": "",
            "pipeline": "pycbc",
            "pipeline_type": "search",
            "waveform_family": "na",
            "is_preferred": false,
            "links": [],
            "parameters": [
                {
                    "name": "far",
                    "unit": "1/yr",
                    "description": "na",
                    "best": 0.001,
                    "upper_error": null,
                    "lower_error": null,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 5
                },
                {
                    "name": "network_matched_filter_snr",
                    "unit": "",
                    "description": "na",
                    "best": 11.7,
                    "upper_error": null,
                    "lower_error": null,
                    "is_upper_limit": false,
                    "is_lower_limit": false,
                    "decimal_places": 1
                },
                {
                    "name": "p_astro",
                    "unit": "",
                    "description": "na",
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                    "upper_error": null,
                    "lower_error": null,
                    "is_upper_limit": false,
                    "is_lower_limit": true,
                    "decimal_places": 2
                }
            ]
        }
    ]
}