{"HAPI": "3.0", "status": {"code": 1200, "message": "OK"}, "x_dataset": "SW_EXPT_EFIA_TCT02", "x_datasetType": "SW_EFIx_TCTyy", "startDate": "2013-12-12T00:00:00.231500Z", "stopDate": "2025-12-04T14:31:06.225250Z", "cadence": "PT0.500000S", "x_maxTimeSelection": "P2DT12H", "modificationDate": "2025-12-22T10:07:12.317Z", "description": "Swarm A Thermal Ion Imager (TII) cross track flow at 2Hz", "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_EFIx_TCT02", "parameters": [{"name": "Timestamp", "description": "Time stamp", "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 \u2013 Latitude", "units": "deg", "type": "double", "x_type": "float32", "fill": null}, {"name": "Longitude", "description": "Position in ITRF \u2013 Longitude", "units": "deg", "type": "double", "x_type": "float32", "fill": null}, {"name": "Radius", "description": "Position in ITRF \u2013 Radius", "units": "m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Latitude_QD", "description": "Quasi-dipole latitude", "units": "deg", "type": "double", "x_type": "float32", "fill": null}, {"name": "MLT_QD", "description": "Magnetic local time", "units": "hour", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vixh", "description": "Along-track ion drift from horizontal TII sensor in satellite-track coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vixh_error", "description": "Random error estimate for along-track ion drift from horizontal TII sensor in satellite-track coordinates. Negative value indicates no estimate available.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vixv", "description": "Along-track ion drift from vertical TII sensor in satellite-track coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vixv_error", "description": "Random error estimate for along-track ion drift from vertical TII sensor in satellite-track coordinates. Negative value indicates no estimate available.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Viy", "description": "Cross-track horizontal ion drift from horizontal TII sensor in satellite-track coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Viy_error", "description": "Random error estimate for cross-track horizontal ion drift from horizontal TII sensor in satellite-track coordinates. Negative value indicates no estimate available.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Viz", "description": "Cross-track vertical ion drift from vertical TII sensor in satellite-track coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Viz_error", "description": "Random error estimate for cross-track vertical ion drift from vertical TII sensor in satellite-track coordinates. Negative value indicates no estimate available.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "VsatN", "description": "Satellite velocity N component in north-east-centre coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "VsatE", "description": "Satellite velocity E component in north-east-centre coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "VsatC", "description": "Satellite velocity C component in north-east-centre coordinates.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Ehx", "description": "Electric field x component in satellite-track coordinates, derived from -VxB with along-track ion drift from horizontal sensor.", "units": "mV/m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Ehy", "description": "Electric field y component in satellite-track coordinates, derived from -VxB with along-track ion drift from horizontal sensor.", "units": "mV/m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Ehz", "description": "Electric field z component in satellite-track coordinates, derived from -VxB with along-track ion drift from horizontal sensor.", "units": "mV/m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Evx", "description": "Electric field x component in satellite-track coordinates, derived from -VxB with along-track ion drift from vertical sensor.", "units": "mV/m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Evy", "description": "Electric field y component in satellite-track coordinates, derived from -VxB with along-track ion drift from vertical sensor.", "units": "mV/m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Evz", "description": "Electric field z component in satellite-track coordinates, derived from -VxB with along-track ion drift from vertical sensor.", "units": "mV/m", "type": "double", "x_type": "float32", "fill": null}, {"name": "Bx", "description": "Geomagnetic field x component in satellite-track coordinates, derived from the 1 Hz product.", "units": "nT", "type": "double", "x_type": "float32", "fill": null}, {"name": "By", "description": "Geomagnetic field y component in satellite-track coordinates, derived from the 1 Hz product.", "units": "nT", "type": "double", "x_type": "float32", "fill": null}, {"name": "Bz", "description": "Geomagnetic field z component in satellite-track coordinates, derived from the 1 Hz product.", "units": "nT", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vicrx", "description": "Ion drift corotation signal x component in satellite-track coordinates. This has been removed from ion drift and electric field.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vicry", "description": "Ion drift corotation signal y component in satellite-track coordinates. This has been removed from ion drift and electric field.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Vicrz", "description": "Ion drift corotation signal z component in satellite-track coordinates. This has been removed from ion drift and electric field.", "units": "m/s", "type": "double", "x_type": "float32", "fill": null}, {"name": "Quality_flags", "description": "Bitwise flag for each velocity component, where a value of 1 for a particular component signifies that calibration was successful, and that the baseline 1-sigma noise level is less than or equal to 100 m/s at 2 Hz. Electric field quality can be assessed from these flags according to -vxB. Bit0 (least significant) = Vixh, bit1 = Vixv, bit2 = Viy, bit3 = Viz. Refer to the release notes for details.", "units": null, "type": "integer", "x_type": "uint16", "fill": null}, {"name": "Calibration_flags", "description": "Information about the calibration process. Refer to the release notes for details.", "units": null, "type": "integer", "x_type": "uint32", "fill": null}]}