{"HAPI": "3.0", "status": {"code": 1200, "message": "OK"}, "x_dataset": "SW_OPER_AOBCFAC_2F", "x_datasetType": "SW_AOBxFAC_2F", "startDate": "2013-11-25T11:07:16.500000Z", "stopDate": "2026-04-07T23:55:14.500000Z", "cadence": "PT23M24S", "x_maxTimeSelection": "P7020D", "modificationDate": "2026-04-14T10:40:51.251Z", "description": "Swarm C aurora oval boundaries determined from the Field Aligned Current (FAC) data", "x_dataTerms": "This dataset is provided by the European Space Agency and it is subject to terms condition described in https://vires.services/data_terms.", "resourceURL": "https://swarmhandbook.earth.esa.int/catalogue/SW_AOBxFAC_2F", "parameters": [{"name": "Timestamp", "description": "Time of observation, UTC", "units": "UTC", "type": "isotime", "length": 24, "x_standard": "UTC", "x_epoch": "1970-01-01T00:00:00Z", "x_unit": "ms", "x_type": "int64", "fill": null}, {"name": "Latitude", "description": "Position in ITRF - Geocentric latitude", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "Longitude", "description": "Position in ITRF - Geocentric longitude", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "Radius", "description": "Position in ITRF - Geocentric radius (from the Earth center)", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "Latitude_QD", "description": "Quasi-dipole latitude", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "Longitude_QD", "description": "Quasi-dipole longitude", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "MLT_QD", "description": "Magnetic Local Time (QD)", "units": "hour", "type": "double", "x_type": "float64", "fill": null}, {"name": "Boundary_Flag", "description": "Indicator for equatorward (=1) or poleward (=2) boundary", "units": null, "type": "integer", "x_type": "uint8", "fill": null}, {"name": "Quality", "size": [2], "description": "Quality indicator of equatorward/poleward boundary (Pa, Sigma)", "units": null, "type": "double", "x_type": "float64", "fill": null}, {"name": "Pair_Indicator", "description": "Indicator of equatorward/poleward boundary of auroral oval. If the auroral oval boundaries are detectable as one pair, the pair indicator represents the record of previous (-1) or next (1) equatorward/poleward boundary within one pair; otherwise, the pair indicator is set to 0", "units": null, "type": "integer", "x_type": "int8", "fill": null}]}