{"HAPI": "3.0", "status": {"code": 1200, "message": "OK"}, "x_dataset": "SW_FAST_TECBTMS_2F", "x_datasetType": "SW_TECxTMS_2F", "startDate": "2025-10-12T03:06:06Z", "stopDate": "2026-04-14T09:01:04Z", "cadence": "PT1S", "x_maxTimeSelection": "P5D", "modificationDate": "2026-04-14T09:45:24.246Z", "description": "Swarm B fast track ionospheric total electron content", "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_TECxTMS_2F", "parameters": [{"name": "Timestamp", "description": "Time stamp in 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": "Geographic latitude", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "Longitude", "description": "Geographic longitude", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "Radius", "description": "Geographic radius", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "GPS_Position", "size": [3], "description": "X-,Y-,Z-coordinates (WGS84) of the GPS satellite", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "LEO_Position", "size": [3], "description": "X-,Y-,Z-coordinates (WGS84) of the LEO satellite", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "PRN", "description": "GPS satellite PRN", "units": null, "type": "integer", "x_type": "uint16", "fill": null}, {"name": "L1", "description": "GPS L1 carrier phase observation", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "L2", "description": "GPS L2 carrier phase observation", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "P1", "description": "GPS P1 code phase observation", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "P2", "description": "GPS P2 code phase observation", "units": "m", "type": "double", "x_type": "float64", "fill": null}, {"name": "S1", "description": "GPS signal-to-noise ratio or raw signal strength on L1", "units": null, "type": "double", "x_type": "float64", "fill": null}, {"name": "S2", "description": "GPS signal-to-noise ratio or raw signal strength on L2", "units": null, "type": "double", "x_type": "float64", "fill": null}, {"name": "Absolute_STEC", "description": "Absolute slant TEC", "units": "TECU", "type": "double", "x_type": "float64", "fill": null}, {"name": "Absolute_VTEC", "description": "Absolute vertical TEC", "units": "TECU", "type": "double", "x_type": "float64", "fill": null}, {"name": "Elevation_Angle", "description": "Elevation Angle", "units": "deg", "type": "double", "x_type": "float64", "fill": null}, {"name": "Relative_STEC", "description": "Relative slant TEC", "units": "TECU", "type": "double", "x_type": "float64", "fill": null}, {"name": "Relative_STEC_RMS", "description": "Root mean square error of relative slant TEC", "units": "TECU", "type": "double", "x_type": "float64", "fill": null}, {"name": "DCB", "description": "GPS receiver differential code bias", "units": "TECU", "type": "double", "x_type": "float64", "fill": null}, {"name": "DCB_Error", "description": "Error of the GPS receiver differential code bias", "units": "TECU", "type": "double", "x_type": "float64", "fill": null}]}