{ "startDate": "1963-01-01T00:00Z", "stopDate": "2026-04-01T23:00Z", "sampleStartDate": "2025-07-01T00:00Z", "sampleStopDate": "2025-12-31T23:00Z", "maxRequestDuration": "PT220750H", "resourceURL": "https://cdaweb.gsfc.nasa.gov/misc/NotesO.html#OMNI2_H0_MRG1HR", "contact": "J.H. King, N. Papitashvili @ ADNET, NASA GSFC", "resourceID": "https://doi.org/10.48322/1shr-ht18", "additionalMetadata": { "name": "SPASE", "contentURL": "https://spase-metadata.org/NASA/NumericalData/OMNI/PT1H.html" }, "parameters": [ { "name": "Time", "type": "isotime", "units": "UTC", "length": 24, "fill": null, "x_description": "Time_at_center_of_hour", "x_cdf_NAME": "Epoch_1800", "x_cdf_DataType": "CDF_EPOCH", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "add_1800", "x_cdf_COMPONENTS": [ "Epoch" ] }, { "name": "Rot1800", "type": "integer", "x_cdf_DataType": "CDF_INT4", "description": "Bartels Rotation Number (half-hour midpoint)", "fill": "9999", "units": " ", "x_label": "Bartel #", "x_cdf_FORMAT": "I4", "x_cdf_FIELDNAM": "Bartels Rotation Number", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "Rot#" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "IMF1800", "type": "integer", "x_cdf_DataType": "CDF_INT4", "description": "OMNI ID code for the source spacecraft for time-shifted IMF values (see OMNI documentation link for codes) (half-hour midpoint)", "fill": "99", "units": null, "x_label": "1AU IMF S/C ID#", "x_cdf_FORMAT": "I2", "x_cdf_FIELDNAM": "ID for IMF spacecraft", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "IMF" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "PLS1800", "type": "integer", "x_cdf_DataType": "CDF_INT4", "description": "OMNI ID code for the source spacecraft for time-shifted IP plasma values (see OMNI documentation link for codes) (half-hour midpoint)", "fill": "99", "units": null, "x_label": "1AU IP Plasma S/C ID#", "x_cdf_FORMAT": "I2", "x_cdf_FIELDNAM": "ID for SW Plasma spacecraft", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "PLS" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "IMF_PTS1800", "type": "integer", "x_cdf_DataType": "CDF_INT4", "description": "# fine time scale IMF points (half-hour midpoint)", "fill": "999", "units": null, "x_label": "No. IMF Pts", "x_cdf_FORMAT": "I4", "x_cdf_FIELDNAM": "# fine time scale IMF points", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "IMF_PTS" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "PLS_PTS1800", "type": "integer", "x_cdf_DataType": "CDF_INT4", "description": "# fine time scale plasma points (half-hour midpoint)", "fill": "999", "units": null, "x_label": "No. IP Plasma Pts", "x_cdf_FORMAT": "I4", "x_cdf_FIELDNAM": "# fine time scale plasma points", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "PLS_PTS" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "ABS_B1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP Average B Field Magnitude, nT, (last currently-available OMNI B-field data Mar 09, 2026) (half-hour midpoint)", "fill": "999.9", "units": "nT", "x_label": "1AU IP Mag Avg B", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "Field Magnitude Avg.", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "ABS_B" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "F1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP Magnitude of average field vector (nT) (half-hour midpoint)", "fill": "999.9", "units": "nT", "x_label": "1AU IP Mag Avg B-vector", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "Magnitude of avg. field vector", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "F" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "THETA_AV1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP Latitude/Theta of average B vector (deg) (half-hour midpoint)", "fill": "999.9", "units": "Deg", "x_label": "1AU IP Lat/Theta Avg B", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "Lat. 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"type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "RMS deviation By (nT), GSE (half-hour midpoint)", "fill": "999.9", "units": "nT", "x_label": "RMSDev By GSE", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "sigma-By", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "SIGMA-By" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "SIGMA-Bz1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "RMS deviation Bz (nT), GSE (half-hour midpoint)", "fill": "999.9", "units": "nT", "x_label": "RMSDev Bz GSE", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "sigma-Bz", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "SIGMA-Bz" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "T1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP Plasma Temperature, deg K, (last currently-available OMNI plasma data Mar 28, 2026) (half-hour midpoint)", "fill": "9999999.0", "units": "Deg K", "x_label": "1AU IP Plasma Temp", "x_format": ".0f", "x_fractionDigits": "0", "x_cdf_FORMAT": "F8.0", "x_cdf_FIELDNAM": "Plasma temperature", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "T" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "N1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP Ion number density (per cc) (half-hour midpoint)", "fill": "999.9", "units": "Per cc", "x_label": "1AU IP N (ion)", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "Ion density", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "N" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "V1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP plasma flow speed (km/s) (half-hour midpoint)", "fill": "9999.0", "units": "Km/s", "x_label": "1AU IP Plasma Speed", "x_format": ".0f", "x_fractionDigits": "0", "x_cdf_FORMAT": "F5.0", "x_cdf_FIELDNAM": "Flow speed", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "V" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "PHI-V1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP plasma flow direction longitude (deg), phi (half-hour midpoint)", "fill": "999.9", "units": "Deg", "x_label": "1AU IP Flow Long", "x_format": ".1f", "x_fractionDigits": "1", "x_cdf_FORMAT": "F5.1", "x_cdf_FIELDNAM": "Flow longitude", "x_cdf_VIRTUAL": "true", "x_cdf_FUNCT": "alternate_view", "x_cdf_COMPONENTS": [ "PHI-V" ], "x_cdf_DISPLAY_TYPE": "default_dimension", "x_cdf_DEPEND_0": "Epoch_1800" }, { "name": "THETA-V1800", "type": "double", "x_cdf_DataType": "CDF_REAL4", "description": "1AU IP 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