2.4.0 spase://CNES/NumericalData/CDPP-Archive/GEOS-1/S-300/GEOS1_UBF_VTL2 GEOS-1 Ultra Low Frequency Magnetic Field Components Level-2 (CDF) https://doi.org/10.24400/802406/ntq0-ht5w 2022-07-26T09:56:13Z This dataset contains magnetic field components from GEOS-1 S-300 wave experiment (search coil magnetometer) given in SRV coordinate system in nT. Time resolution is 43 ms. Users of these data are encouraged to acknowledge ESA/ESTEC (European Space Agency / European Space Research and Technology Center), DSRI (Danish Space Research Institute), CNES (Centre National d'Etudes Spatiales) for their support to the SCM GEOS team, NASA/GSFC (National Aeronautics and Space Administration / Goddard Space Flight Center) and CNR (Consiglio Nazionale delle Ricerche) for their support to the MAG GEOS team, and the CDPP (Centre des Données de la Physique des Plasmas) for the distribution of the GEOS data, in all publications. If PI/coI are not part of the publication list, then we suggest to add Specifically, we acknowledge Roger Gendrin and Patrick Robert for use of SCM data from the GEOS mission. spase://CNES/Person/CDPP-Archive/CDPP.general.contact GeneralContact spase://CNES/Person/CDPP-Archive/Patrick.Canu CoInvestigator spase://CNES/Person/CDPP-Archive/Nicole.Cornilleau-Wehrlin PrincipalInvestigator spase://CNES/Person/CDPP-Archive/Patrick.Robert DataProducer spase://CNES/Repository/CDPP-Archive/REGARDS-CDPP Online REGARDS https://regards.cnes.fr/user/cdpp/modules/1777?sp=DatasetName;q=DatasetName:GEOS1_UBF_VTL2 Access via CNES Data Archive for CDPP CDF Calibrated 2 spase://CNES/Instrument/CDPP-Archive/GEOS-1/S-300 Waves.Passive Waves.Active 1977-04-27T00:00:00Z 1978-06-23T00:00:00Z Earth.NearSurface.Plasmasphere Earth.Magnetosphere Sampling frequency Sampling frequency Hz Other Voltage range min Voltage range min V Other Voltage range max Voltage range max V Other Telemetry range min Telemetry range min Other Telemetry range max Telemetry range max Other Spin period Spin period Hz Other Filter frequency min Filter frequency min Hz Other Filter frequency max Filter frequency max Hz Other Cut off frequency Cut off frequency Hz Other Detrend frequency Detrend frequency Hz Other Calibration kernel size Calibration kernel size Other Calibration shift size Calibration shift size Other Warning code This warning indicates if there is any problem on the data : 0 no problem, 1: the Quality of all or some of the frames in the format is suspect 2: the telemetry format is missing and dumny data has been substituted Other Low speed format Low speed format Corresponding duration 1.37601 s Other Spin rate Spin rate Hz SpinRate Euler Angles Euler angles allow transition from rotating antennas frame into reference VDH frame. First component: precession, second: nutation, third: own rotation/gyration ° 0.0174532925>rad Orientation Direction of Rotation Direction of Rotation of the probe. e : electron, p : proton Other Origin of the data This parameter indicates if the data are original or interpolated. 0 : interpolated, 1 : original Other Spin Phase Angle Spin Phase is given in the S/C system and S/C sens ° 0.0174532925>rad SpinPhase Magnetic field components in SRV coordinate system Magnetic field components in SRV coordinate system. Bx, By, Bz: Magnetic field, Dx, Dy: despin signals corresponding to the continuous magnetic field rotation. VDH frame (Vertical Dusk Horizontal system) The V-axis is the outwards local vertical, to the point of observation.The H-axis is parallel to the horizontal local plane, positive to the North.The V-H plane is a geographic meridian plane. The D-axis is azimuthal, eastwards. SRV frame Z aligned with the spin axis X is in the geographic meridian plane (V,H) of the VDH frame Note that Dx and Dy are truncated from the raw signal before numerisation. The conversion to Volt units is given by Bx(V) = -(Bx*5.1/255.0 - 2.5)/Gx and Dx(V) = (Dx*5.1/255.0 -2.5)/10.0 nT Electromagnetic Vector MagneticField 0.01 11.5 Hz