{ "HAPI": "3.2", "x_description": "This dataset represents an epoch ordered list of plasma regions encountered by the Cluster spacecraft 4 in the magnetotail, entry and exit time as well as characteristic plasma and magnetic field parameters for each region. In addition, a caveat flag which describes undefined regions, quality flag which describes magnetic field and plasma instrument data quality, as well as comment flag which comments dataset in general, are given. The UR flag gives the reasons for undefined regions: when 0-not an undefined region record, 1-missing FGM moments ,2-missing plasma moments , 3-missing FGM and plasma instrument moments, 4-spacecaft out of tail region , 5-spacecraft out of tail region and missing FGM moments , 6-spacecraft out of tail region and missing plasma moments , 7-spacecraft out of tail region and missing FGM and plasma moments , 8-FGM caveat in interval , 9-Plasma instrument caveat in interval, 10-Plasma and/or FGM instrument is in wrong operation mode, 11-magnetosheath entry, 12-high density in flanks (e.g mantle), 13-magnetosheath crossing, 14-C2 MS region, 15-Solar Proton Event interval. See the dataset documentation for further details. The regions identified are defined as: SS_LOBE=Southern lobe, NN_LOBE=Northern lobe, SS_BR=Southern Boundary Region, NN_BR=Northern Boundary Region, SS_OPS=Southern Outer Plasma Sheet, NN_OPS=Northern Outer Plasma Sheet, SS_IPS=Southern Inner Plasma Sheet, NN_IPS=Northern Inner Plasma Sheet, NS_NSR=North to South Neutral Sheet Crossing Region, SN_NSR=South to North Neutral Sheet Crossing Region, 00_NSR=Neutral Sheet data point (Bx=0), UR=Undefined Region Region comments: 0-not applicable, 1-Plasma region is OPS with high beta (>1 for ions, ratio for electrons) data points, 2-Plasma region is IPS with low beta (<1 for ions, ratio for electrons) data points, 3-IPS region with minimum beta in BR beta range, 4-IPS region with minimum beta in the lobe beta range, 5-Lobe region containing data points with density below the instrument sensitivity (CAA density moments=0), 6-Lobe region with high density (>0.1), 7-Flank (yz>8) region with high density (>1), 8-UR region due to high density (UR flag 12) was NSR before removal, 9-UR region due to high density (UR flag 12) was IPS before removal, 10-UR region due to high density (UR flag 12) was OPS before removal, 11-UR region due to high density (UR flag 12) was BR before removal, 12-UR region due to high density (UR flag 12) was LOBE before removal, 13-C2 region in the flank (abs(yz)>10), 14-C2 region in the flank and is high density lobe, 66-NSR crossing points IPS only, 67-NSR crossing points IPS+OPS, 68-NSR crossing points IPS+BR, 69-NSR crossing points IPS+LOBE,77-NSR crossing points OPS only, 78-NSR crossing points OPS+BR, 79-NSR crossing points OPS+LOBE, 88-NSR crossing points BR only, 89-NSR crossing points BR+LOBE, 99-NS crossing points LOBE only. Instrument id of plasma instrument is: 0-not applicable, 1-CIS-CODIF_H1, 2-CIS-HIA, 3-PEACE. This dataset was generated as part of European Union ECLAT project. The aim of the European Cluster Assimilation Technology (ECLAT) is to provide a novel data base, by providing an upgrade to the CAA. To achieve this , ECLAT programme ingests into the CAA supporting data from other space- and ground-based observatories, provide data mining routines, refine data products and software tools for their visualisation, and develop existing European magnetospheric modeling infrastructure to provide context for the observational data. The contacts for the ECLAT project are Steve Milan, University of Leicester Rumi Nakamura, Oesterreichische Akademie der Wissenschaften Kirsti Kauristie, Finnish Meterological Institute Victor Sergeev, Petersburg State University Hermann Opgenoorth, Swedish Institute of Space Physics", "cadence": "PT600.000000S", "parameters": [ { "type": "isotime", "x_type": "ISO_TIME_RANGE", "units": "UTC", "name": "region_interval", "description": "Region interval", "label": "Universal Time", "fill": null }, { "type": "string", "name": "region_name", "description": "SS_LOBE, NN_LOBE, SS_BR, NN_BR,SS_OPS, NN_OPS, SS_IPS, NN_IPS, NS_NSR, SN_NSR, 00_NSR, UR", "label": "SC hemisphere and Plasma region", "units": null, "length": 1, "fill": "UR" }, { "type": "double", "name": "mean_bxy_gsm", "description": "mean magnitude of FGM Bxy (GSM) component in region", "label": "mean FGM BxBy (GSM)", "units": "nT", "fill": "-1e30" }, { "type": "double", "name": "sd_bxy_gsm", "description": "standard deviation FGM MAGN (BxBy in GSM) in region", "label": "std MAGN(Bxy) in GSM", "units": "nT", "fill": "-1e30" }, { "type": "double", "name": "mean_Bz_gsm", "description": "mean value of FGM Bz (GSM) in region", "label": "mean value of FGM Bz (GSM) in region", "units": "nT", "fill": "-1e30" }, { "type": "double", "name": "min_Bz_gsm", "description": "minimum value of FGM Bz (GSM) in region", "label": "min of FGM Bz (GSM) in region", "units": "nT", "fill": "-1e30" }, { "type": "double", "name": "max_Bz_gsm", "description": "maximum value of FGM Bz (GSM) in region", "label": "max of FGM Bz (GSM) in region", "units": "nT", "fill": "-1e30" }, { "type": "double", "name": "mean_density", "description": "Mean plasma density in region", "label": "mean plasma density in region", "units": "particles cm^-3", "fill": "-1e30" }, { "type": "double", "name": "mean_total_pressure", "description": "Mean value of total pressure", "label": "mean value of total pressure in region", "units": "nPa", "fill": "-1e30" }, { "type": "double", "name": "median_plasma_beta", "description": "Median value of plasma beta in region", "label": "median beta in region", "units": null, "fill": "-1e30" }, { "type": "integer", "name": "percent_high_Vpar", "description": "Percentage of high speed parallel flow (xy component), see documentation for high speed definition", "label": "% high speed Vpar_xy", "units": null, "fill": "-1" }, { "type": "integer", "name": "percent_high_Vperp", "description": "Percentage of high speed perpendicular flow (xy component), see documentation for high speed definition", "label": "% high speed Vperp_xy", "units": null, "fill": "-1" }, { "type": "double", "name": "Vx_min", "description": "Minimum value of x component of plasma velocity", "label": "minimum of Vx in region", "units": "kms^-1", "fill": "-1e30" }, { "type": "double", "name": "Vx_max", "description": "Maximum value of x component of plasma velocity", "label": "maximum of Vx in region", "units": "kms^-1", "fill": "-1e30" }, { "type": "double", "name": "sc_pos_gsm", "description": "Spacecraft x,y,z location at region entry in Earth radii (GSM)", "label": "SC position at region entry in Re (GSM)", "units": "Re", "fill": "-1e30", "size": [ 3 ] }, { "type": "integer", "name": "n_NS_crossings", "description": "Number of neutral sheet (Bx=0) crossings from FGM 5Hz dataset", "label": "number of 5Hz neutral sheet crossings in region", "units": null, "fill": "-1" }, { "type": "integer", "name": "n", "description": "Number of data points (matched FGM and plasma instrument moments) in region", "label": "Number of data points in region", "units": null, "fill": "-1" }, { "type": "integer", "name": "min_data_res", "description": "Minimum resolution of data points in region to the nearest second", "label": "min/max resolution in region", "units": "s", "fill": "-1" }, { "type": "integer", "name": "max_data_res", "description": "Maximum resolution of data points in region to the nearest second", "label": "max resolution in region", "units": "s", "fill": "-1" }, { "type": "integer", "name": "n_gaps", "description": "Number of intervals between region data points which are longer than half the allowed data gap", "label": "number of data gaps in region>16s", "units": "Unitless", "fill": "-1" }, { "type": "integer", "name": "ur_flag", "description": "Quality flag (the explanation is in the data description)", "label": "Caveat flag describes reasons for undefined regions", "units": null, "fill": "0" }, { "type": "integer", "name": "inst_flag", "description": "Flag: 0-not applicable, 1-known problems, 3-good for publication, -10-other known issues", "label": "Quality flag", "units": null, "fill": "-1" }, { "type": "integer", "name": "comment_flag", "description": "Region comments", "label": "Region comments code", "units": null, "fill": "0" }, { "type": "integer", "name": "plasma_inst_id", "description": "Instrument id of plasma instrument", "label": "Instrument id", "units": null, "fill": "0" } ], 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