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Availability: Archived at NSSDC, accessible from elsewhere

Time span: 1989-08-21 to 1989-08-31


This description was generated automatically using input from the Planetary Data System.

Data Set Overview ================= This data set consists of 48-second calibrated, averaged wave electric field intensities from the Voyager 2 Plasma Wave Receiver spectrum analyzer obtained in the vicinity of the Neptunian magnetosphere. For each 48-second interval, a geometric average field strength is determined for each of the 16 spectrum analyzer channels whose center frequencies range from 10 Hertz to 56.2 kiloHertz and which are logarithmically spaced in frequency, four channels per decade. The time associated with each set of averages is the beginning of the averaging interval. Averages are stored in units of volt/meter. During data gaps where complete 48-second intervals are missing, no entries exist in the file, that is, the gaps are not zero-filled or tagged in any other way. Additional information about this dataset and the instrument which produced it can be found elsewhere in this catalog. An overview of the data in this data set can be found in Gurnett et al. [1989] and a complete instrument description can be found in Scarf and Gurnett [1977]. Parameters ========== Derived Parameters -----------------Sampling Parameter Name : TIME Sampling Parameter Resolution : 48.0 seconds Minimum Sampling Parameter : N/A (1977-08-20T15:53:00Z) Maximum Sampling Parameter : N/A Sampling Parameter Interval : 48.0 seconds Minimum Available Sampling Interval : 4.0 seconds Data Set Parameter Name : plasma wave spectrum Noise Level : 0.000005 V/m Data Set Parameter Unit : volts/meter Plasma wave spectrum: A set of derived parameters consisting of wave electric field intensities or electric field spectral densities at various contiguous frequencies over a range of frequencies. The MKS units are: volts/meter or volts**2/(hertz.meter**2), respectively. Measured Parameters ------------------Electric field component: A measured parameter equaling the electric field strength (e.g. in milli-Volts per meter) along a particular axis direction. Wave magnetic field intensity: A measured parameter equaling the magnetic field strength in a specific frequency passband (in MKS unit: volts/meter) measured in a single sensor or antenna. Wave electric field intensity: A measured parameter equaling the electric field strength in a specific frequency passband (in MKS unit: volts/meter) measured in a single sensor or antenna. Processing ========== The data files in this data set were created from the SA 4 second data set (VG2-N-PWS-2-EDR-SA-4SEC-V1.0), using the 'V2U48' software. V2U48 ----Node ID : PPI-IOWA Software Release Date : 1988-08-01 Cognizant Full Name : MR. LARRY J. GRANROTH V2U48 is a specialized, hard-coded routine to process a specific interval of Voyager 2 Plasma Wave Spectrometer (PWS) spectrum analyzer data around Uranus encounter. Input is from MSF or CD data sets produced and stored at the University of Iowa, and output is to ASCII text files which are compatible with PDS data loading procedures. These files contain information corresponding to the VG2-N-PWS-4-SUMM-SA-48SEC-V1.0 and VG2-U-PWS-4-SUMM-SA-48SEC data set. NOTE: SOFTWARE IS NOT AVAILABLE FOR PUBLIC USE.

These data are available on-line from the Planetary Data System (PDS) at:

Alternate Names

  • VG2-N-PWS-4-SUMM-SA-48SEC-V1.0


  • Planetary Science: Fields and Particles

Additional Information



Questions and comments about this data collection can be directed to: Dr. Edwin V. Bell, II



NameRoleOriginal AffiliationE-mail
Prof. Donald A. GurnettData ProviderUniversity of Iowa
Dr. William S. KurthGeneral ContactUniversity of
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