2.2.2 spase://VMO/NumericalData/Cluster-Rumba/WBD/PrimeParameter/PT0.02S Cluster II Rumba Wide Band Data (WBD) Prime Parameters Cluster II WBD data 2011-02-04T15:51:45Z The WBD (Wide Band Data) investigation is designed to provide high-resolution frequency/time spectra of plasma waves in the Earth's magnetosphere. These data files contain information on the band width, resolution, antenna angles, offsets, magnetic and electric field information. For more details of the Cluster mission, the spacecraft, and its instruments, see the report ``Cluster: mission, payload and supporting activities,'' March 1993, ESA SP-1159, and the included article ``The Wideband Plasma Wave Investigation,'' by D. A. Gurnett et al., from which this information was obtained. NASA; Prof. Donald A. Gurnett spase://SMWG/Person/Donald.A.Gurnett PrincipalInvestigator spase://SMWG/Person/Les.J.C.Woolliscroft CoInvestigator spase://SMWG/Person/Robert.A.Helliwell CoInvestigator spase://SMWG/Person/Eigil.Ungstrup CoInvestigator spase://SMWG/Person/Gerhard.Haerendel CoInvestigator spase://SMWG/Person/Gerald.S.Levy CoInvestigator spase://SMWG/Person/Georg.Gustafsson CoInvestigator spase://SMWG/Person/Alain.Roux CoInvestigator spase://SMWG/Person/Jean-Louis.Henry.Bougeret CoInvestigator spase://SMWG/Person/Umran.S.Inan CoInvestigator spase://SMWG/Person/Robert.L.Mutel CoInvestigator spase://SMWG/Person/Bent.M.Pedersen CoInvestigator spase://SMWG/Person/Patrick.Canu CoInvestigator spase://SMWG/Person/Warren.L.Martin CoInvestigator spase://SMWG/Person/Steven.R.Spangler CoInvestigator spase://SMWG/Person/Gerard.Daigne CoInvestigator spase://SMWG/Person/James.M.Weygand MetadataContact NSSDC's Master Catalog on the Wide Band Data (WBD) experiment http://nssdc.gsfc.nasa.gov/nmc/experimentDisplay.do?id=2000-045A-10 Introduction to the WBD experiment on Cluster II Rumba spase://SMWG/Observatory/Cluster-Rumba ObservedBy spase://VMO/NumericalData/Cluster2-Rumba/WBD/PrimeParameter/PT0.02S spase://SMWG/Repository/NASA/GSFC/SPDF/CDAWeb Online Open CDAWeb http://cdaweb.gsfc.nasa.gov/ C1_WAVEFORM_WBD CDF NASA; Prof. Donald A. Gurnett Calibrated Cluster II Rumba Wide Band Data Calibrated 1 spase://SMWG/Instrument/Cluster-Rumba/WBD MagneticField ElectricField Spectrum 2001-02-04T00:00:00 -P3M Time format in data files is: day, month, year hour, min, seconds. Ex: '01-Jan-1981 00:00:00.000' PT0.02S Earth.Magnetosheath Earth.Magnetosphere Earth.Magnetosphere.Magnetotail Earth.Magnetosphere.Main Earth.Magnetosphere.Polar Earth.Magnetosphere.RadiationBelt Earth.NearSurface.AuroralRegion Earth.NearSurface.Ionosphere Earth.NearSurface.Plasmasphere Earth.NearSurface.PolarCap Heliosphere.NearEarth 10 to 20 ms magnetosphere auroral region polar cap cusp bow shock solar wind magnetosheath cluster magnetotail lobe Universal Time Epoch Universal Time in data cell: day, month, year hour, min, seconds. Ex: '01-Jan-1981 00:00:00.000'. On-board time is corrected to a precision of order 50 microseconds when compared to UTC. The applied time correction comes from the DWP TCOR time correction files located at the Cluster Active Archive (CAA). Interval centered time tag. Fill value is 31-Dec-999 23:59:59.999.999.999.999 PT0.02S picoseconds '1.0e-12>s' Epoch Temporal Cluster II Rumba WBD Bandwidth Bandwidth Cluster II Rumba WBD frequency bandwidth in kHz. WARNING: 19 and 77 kHz Bandwidth modes with 8-bit resolution, and 77 kHz Bandwidth mode with 4-bit resolution (see Resolution variable) are not continuous data modes. Always check for periodic time jumps for these modes. PT0.02S kHz 1.0e3>Hz Bandwidth 0 80 -1.0000e+031 Other Cluster II Rumba WBD Translation Translation Cluster II Rumba WBD base translation frequency of frequency bandwidth in kHz. Also known as Conversion Frequency. PT0.02S kHz 1.0e-3>Hz Freq.Shift 0 510 -1.0000e+031 Other Cluster II Rumba WBD Digital Resolution Resolution Cluster II Rumba WBD number of bits used when digitizing data. PT0.02S bits 1.0>bit Dig. Res. 1 8 -128 Other Cluster II Rumba WBD Antenna Antenna Cluster II Rumba WBD antenna used for measurements. 0=Ez, 1=Bx, 2=By, 3=Ey. PT0.02S Antenna 0 3 -128 Other Cluster II Rumba WBD Gain Gain Cluster II Rumba gain state of WBD instrument. Steps of 5 dB from 0 to 75. PT0.02S dB 1.0>(dB) WBD Gain -1 80 -128 Other Cluster II Rumba WBD Antenna-B Field Total Angle Ant_B_Field_Angle Cluster II Rumba WBD Total angle between antenna used for WBD measurement and measured B field direction. Antenna refers to the antenna in use, either E or B. PT0.02S degrees 1.0>degree Ant-B Ang 0 180 -1.0000e+031 Other Cluster II Rumba WBD Antenna Xgse Angle Ant_Xgse_Angle Cluster II Rumba WBD Total angle between the Xgse axis and the antenna direction. Total angle between the Xgse axis and the antenna direction. Antenna refers to the antenna in use, either E or B. PT0.02S degrees 1.0>degree Ant_Xgse 0 180 -1.0000e+031 Other Cluster II Rumba WBD Antenna YZgse Angle Ant_YZgse_Plane_Angle Cluster II Rumba WBD Total angle between Ygse axis and the projection of the antenna direction in the Ygse-Zgse plane. Total angle between Ygse axis and the projection of the antenna direction in the Ygse-Zgse plane, measured counter-clockwise from +Ygse (angle=0 deg) to +Zgse (angle=90 deg), -Ygse (angle=180 deg) and -Zgse (angle=270 deg). Antenna refers to the antenna in use, either E or B. PT0.02S degrees 1.0>degree Ant_YZgse 0 360 -1.0000e+031 Other Cluster II Rumba WBD Offset DC_Offset Cluster II Rumba WBD DC Offset used when converting from raw digital values to calibrated data. DC Offset values may be used to reverse calibrate the data to the original raw counts and to determine the boundaries of the original transport packets. A description of the procedure may be found in the 'cluster_wbd_calibration.pdf' document (see Global attributes section of this file). In addition, sample code for reverse calibration may be found in the above mentioned document. PT0.02S DC Offset 0 255 -1.0000e+031 Other Cluster II Rumba WBD AC Electric Field WBD AC Electric Field Cluster II Rumba WBD Calibrated AC WBD Electric Field. PT0.02S mV/m 1.0e-3>V/m E-field -50 50 -1.0000e+031 Electric 25 577000 Hz Cluster II Rumba WBD AC Magnetic Field WBD AC Magnetic Field Cluster II Rumba WBD Calibrated AC WBD Magnetic Field. PT0.02S nT 1.0e-9>T B-field -10 10 -1.0000e+031 Magnetic 25 577000 Hz Cluster II Rumba WBD Data Quality Data_Quality Cluster II Rumba WBD data quality. 1.0>(ordinal 0=OK, 1= Clipped or questionable, 2= Bad data value). Clipped data: Measurement was equal to raw data value maximum (255) or minimum (0). This does not necessarily mean the receiver was in saturation, which would be accompanied by non-linear effects. PT0.02S Data Qual -1 3 -128 Other