<_Note>Nodes prefixed with a _ are not valid SPASE, but are included for debugging. Values prefixed with a x_ are not valid SPASE but may considered for addition for completeness. 2.6.1 <_MasterURL>https://cdaweb.gsfc.nasa.gov/pub/software/cdawlib/0JSONS/cnofs_vefi_bfield_1sec_00000000_v01.json (from all.xml) spase://NASA/NumericalData/CNOFS/VEFI/BField/PT1S <_ResourceID>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ResourceID.json Magnetic field solution (at 1 sample per sec) produced by VEFI on the Communication Navigation Outage Forecast System satellite. <_ResourceName>Source: Master/CDFglobalAttributes/Logical_source_description cnofs_vefi_bfield_1sec <_AlternateName>Source: Master/CDFglobalAttributes/Logical_source The DC vector magnetometer on the CNOFS spacecraft is a three axis, fluxgate sensor with active thermal control situated on a 0.6m boom. This magnetometer measures the Earth's magnetic field, B, using 16 bit A/D converters at 1 sample per sec with a range of +/- 45,000 nT per sensor axis. Its primary objective on the CNOFS spacecraft is to enable the most accurate V x B and E x B measurements along the spacecraft trajectory, where V is the spacecraft velocity in the fixed frame of the earth and E is the ambient, measured electric field. The magnetic field data also provide indications of ionospheric currents as well as other geophysical phenomena. In-flight calibration of the raw magnetic field data is carried out to determine gains, offsets, and the non-orthogonality matrix in the sensor axes frame. The IGRF-11 model is used as a reference to help determine the calibration. The calibrated magnetic field measurements are provided in the data file. A full description of the instrument can be found in the published paper: The Vector Electric Field Instrument (VEFI) on the C/NOFS Satellite, Pfaff et al., 2021, doi.org/10.1007/s11214-021-00859-y. <_Description>Source: Master/CDFglobalAttributes/TEXT VEFI was designed and built by NASA Goddard Space Flight Center. CNOFS is a joint effort between the Air Force Research Laboratory Space Vehicles Directorate and the USAF Space Test Program. <_Acknowledgement>Source: Master/CDFglobalAttributes/Acknowledgement <_Rights> SPDX Creative Commons Zero v1.0 Universal https://spdx.org/licenses/CC0-1.0.html https://spdx.org/licenses/ http://vefi.gsfc.nasa.gov/ VEFI Project home page at NASA Goddard Space Flight Center Please see our <_Note>URL also in all.xml. Using master. VEFI Data Products https://vefi.gsfc.nasa.gov/vefi/dataproducts.html <_Note>Source: InformationURL.json Users are requested to contact the P.I., Dr. Robert Pfaff at NASA GSFC, prior to publication of any VEFI data. <_Caveats>Source: Master/CDFglobalAttributes/Rules_of_use https://doi.org/10.48322/vbt7-gj03 <_DOI>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/DOI.json <_AccessInformation>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/AccessInformation.json 2008-05-09T00:00:00Z 2015-09-28T23:43:18Z <_TemporalDescription>Generated from all.xml/@timerange_start and all.xml/@timerange_stop PT1S <_Cadence>Counts based on variable 'Epoch' in https://cdaweb.gsfc.nasa.gov/sp_phys/data/cnofs/vefi/bfield_1sec/2008/cnofs_vefi_bfield_1sec_20080509_v06.cdf. The most common cadence, 1000000000 [ns] = PT1S, occurred for 99.1454% of the 82251 timesteps. <_ObservedRegion>Source: https://github.com/rweigel/cdawmeta-spase/blob/main/ObservedRegion.json <_ProcessingLevel>Processing level is not available in the master file; it should be there instead of, say, https://github.com/rweigel/cdawmeta-spase/blob/main/ProcessingLevel.json spase://SMWG/Instrument/CNOFS/VEFI MagneticField spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC HTTPS from SPDF https://cdaweb.gsfc.nasa.gov/pub/data/cnofs/vefi/bfield_1sec In CDF via HTTP from CDAWeb cnofs_vefi_bfield_1sec_%Y%m%d_%Q.cdf %Y CNOFS_VEFI_BFIELD_1SEC CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC FTPS from SPDF ftps://cdaweb.gsfc.nasa.gov/pub/data/cnofs/vefi/bfield_1sec In CDF via HTTP from CDAWeb cnofs_vefi_bfield_1sec_%Y%m%d_%Q.cdf %Y CNOFS_VEFI_BFIELD_1SEC CDF spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC CDAWeb Web Service https://cdaweb.gsfc.nasa.gov/WebServices/ Instructions for using web services to access this dataset an other other metadata and options for CDAWeb datasets. The ProductKey here corresponds to the query parameter 'dataset' in the tables at the AccessURL in a dataset-related request can be made. CNOFS_VEFI_BFIELD_1SEC CDF CSV GIF NetCDF PNG PS PDF XML x_Script.IDL x_Script.Python Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC CDAWeb Web Service user interface https://cdaweb.gsfc.nasa.gov/cgi-bin/eval2.cgi?index=sp_phys&dataset=CNOFS_VEFI_BFIELD_1SEC CNOFS_VEFI_BFIELD_1SEC Web service user interface for this product. CDF GIF PDF Text.ASCII x_WAV spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC CDAWeb Python Script https://cdaweb.gsfc.nasa.gov/WS/cdasr/1/dataviews/sp_phys/datasets/CNOFS_VEFI_BFIELD_1SEC/clientLibraryExample/ CNOFS_VEFI_BFIELD_1SEC Web service that generates a Python script to access this product. x_Script.IDL x_Script.Python spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/SSCWeb. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC 4D Orbit Viewer https://sscweb.gsfc.nasa.gov/4dorbit/?sc=CNOFS_VEFI_BFIELD_1SEC CNOFS_VEFI_BFIELD_1SEC Web Service to this product. HTML spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC CDAWeb HAPI Server https://hapi-server.org/servers/#server=CDAWeb&dataset=CNOFS_VEFI_BFIELD_1SEC CNOFS_VEFI_BFIELD_1SEC Web Service to this product using the HAPI interface. CSV JSON Binary spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC CDAWeb HAPI Script in Multiple Languages https://hapi-server.org/servers/#server=CDAWeb&dataset=CNOFS_VEFI_BFIELD_1SEC&return=script CNOFS_VEFI_BFIELD_1SEC Web Service user interface that generates scripts in IDL, Javascript, MATLAB, Python, Autoplot, curl, wget to access this product. See https://hapi-server.org/servers/api for the API. x_Script.IDL x_Script.Javascript x_Script.MATLAB x_Script.Python x_Script.Autoplot x_Script.curl x_Script.wget spase://SMWG/Repository/NASA/GSFC/SPDF Online Open SPDF/CDAWeb and the HAPI project. Please also acknowledge the data producer: Robert F. Pfaff at NASA GSFC HAPI visualizations https://hapi-server.org/plot/?server=https://cdaweb.gsfc.nasa.gov/hapi&dataset=CNOFS_VEFI_BFIELD_1SEC&format=gallery CNOFS_VEFI_BFIELD_1SEC Web Service that generates plots. See https://hapi-server.org/plot/ for the API. PNG PDF SVG Communications Navigation Outage Forecast System (from all.xml/observatory/description/@short) VEFI (from all.xml/instrument/description/@short) Space Physics (from Master/CDFglobalAttributes/Discipline) Ionospheric Science (from Master/CDFglobalAttributes/Discipline) CNOFS (from Master/CDFglobalAttributes/Source_name) Communications Navigation Outage Forecast System (from Master/CDFglobalAttributes/Source_name) K0 (from Master/CDFglobalAttributes/Data_type) Key Parameter (from Master/CDFglobalAttributes/Data_type) VEFI (from all.xml/instrument/@ID) Earth.NearSurface.Ionosphere Earth.NearSurface Epoch TT2000 Epoch CATDESC: 'Time encoding is TT2000.'. Notes not in Master CDF: 'The units are the units in CDF files. For other web services, this variable is may be represented as a time string.' ns Scalar Temporal B_north B_north Master CDF CATDESC: 'Magnetic field in the north direction'. Master CDF VAR_NOTES: 'Geodetic coordinate system, B field in the north direction with respect to the WGS-84 reference ellipsoid of the earth.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 B_up B_up Master CDF CATDESC: 'Magnetic field in the up direction'. Master CDF VAR_NOTES: 'Geodetic coordinate system, B field in the up direction with respect to the WGS-84 reference ellipsoid of the earth.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 B_west B_west Master CDF CATDESC: 'Magnetic field in the west direction'. Master CDF VAR_NOTES: 'Geodetic coordinate system, B field in the west direction with respect to the WGS-84 reference ellipsoid of the earth.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 B_IGRF_north B_IGRF_north Master CDF CATDESC: 'IGRF Magnetic field in the north direction'. Master CDF VAR_NOTES: 'Geodetic coordinate system, IGRF-11 B field in the north direction with respect to the WGS-84 reference ellipsoid of the earth.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 B_IGRF_up B_IGRF_up Master CDF CATDESC: 'IGRF Magnetic field in the up direction'. Master CDF VAR_NOTES: 'Geodetic coordinate system, IGRF-11 B field in the up direction with respect to the WGS-84 reference ellipsoid of the earth.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 B_IGRF_west B_IGRF_west Master CDF CATDESC: 'IGRF Magnetic field in the west direction'. Master CDF VAR_NOTES: 'Geodetic coordinate system, IGRF-11 B field in the west direction with respect to the WGS-84 reference ellipsoid of the earth.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 latitude latitude Master CDF CATDESC: 'Latitude of the spacecraft'. Master CDF VAR_NOTES: 'Geodetic latitude with respect to the WGS-84 earth model.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' degrees -1e+31 longitude longitude Master CDF CATDESC: 'Longitude of the spacecraft'. Master CDF VAR_NOTES: 'Geodetic longitude with respect to the WGS-84 earth model.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' degrees -1e+31 altitude altitude Master CDF CATDESC: 'Altitude of the spacecraft'. Master CDF VAR_NOTES: 'Geodetic altitude with respect to the WGS-84 earth model.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' km -1e+31 dB_zon dB_zon Master CDF CATDESC: 'delta B in the zonal direction.'. Master CDF VAR_NOTES: 'Zonal direction is defined by Bxr, where B is the local magnetic field vector and r is the radius vector from the center of the earth to the spacecraft. Sign convention is that eastward is positive. dB = delta B = measured B field - IGRF-11 model B field.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 dB_mer dB_mer Master CDF CATDESC: 'delta B in the meridional direction.'. Master CDF VAR_NOTES: 'Meridional direction is defined by ZxB, where Z is the zonal vector direction and B is the local magnetic field vector. dB = delta B = measured B field - IGRF-11 model B field.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31 dB_par dB_par Master CDF CATDESC: 'delta B in the parallel direction.'. Master CDF VAR_NOTES: 'Parallel direction is defined by the local magnetic field vector. dB = delta B = measured B field - IGRF-11 model B field.'. Notes not in Master CDF: 'The time index (the ISTP DEPEND_0 variable) for this parameter is Epoch.' nT -1e+31