PVO Electric Field Detector (OEFD) Data Bundle Readme Introduction ============ This document contains information pertaining to the Pioneer Venus Orbiter OEFD Data Bundle. This bundle includes wave electric field amplitudes measured at four different frequencies by the Electric Field Detector for PVO and data that was averaged over 24 second intervals on 12 second centers. The data comes in ASCII and Original Binary forms. This bundle is organized into several collections, including PVO Electric Field Detector (OEFD) High-Res. Collections (urn:nasa:pds:pvo-oefd-cal:data-highres-bin & urn:nasa:pds:pvo-oefd-cal:data-highres-asc), PVO Electric Field Detector (OEFD) 24 Sec. Avgs. Collections (urn:nasa:pds:pvo-oefd-cal:data-24s-bin & urn:nasa:pds:pvo-oefd-cal:data-24s-asc), and document. PDS4 documentation is all XML. There is an XML label for every product in the archive. PVO Electric Field Detector (OEFD) High-Res. Collections ============================================================================ The wave electric field amplitudes measured at four different frequencies (100 Hz, 730 Hz, 5.4 kHz, 30 kHz). The frequency filters are narrow-band, with a 30% bandwidth. Thus wave intensities are given in V2/m2/Hz. The filters are continuously active, but data are only provided at a rate determined by the spacecraft telemetry rate. The wave antenna is oriented perpendicular to the spacecraft spin axis, and so the wave instrument measures only wave fields in the spacecraft spin plane. Spin modulation of naturally occurring signals can be used to obtain two dimensional wave field information. The wave antenna is a small Y-shaped structure, with effective separation of 0.76 meters. The spin phase of the effective dipole is included within the high resolution data set for each of the channels, which are sampled at different times. PVO Electric Field Detector (OEFD) 24 Sec. Avgs. Collections ============================================================================= Electric field amplitudes measured at four different frequencies (100 Hz, 730 Hz, 5.4 kHz, 30 kHz). The data are averaged over 24 second intervals on 12 second centers. Each averaging interval contains both the minimum amplitude, average amplitude and peak amplitude for that interval at each of the four frequencies. The frequency filters are narrow-band, with a 30% bandwidth. Thus wave amplitudes are given in V/m/root(Hz). The filters are continuously active, but data are only provided at a rate determined by the spacecraft telemetry rate. The wave antenna is oriented perpendicular to the spacecraft spin axis, and so the wave instrument measures only wave fields in the spacecraft spin plane. The wave antenna is a small Y-shaped structure, with effective separation of 0.76 meters. Every effort has been made to insure that the data are of the best quality available. However, users are encouraged to verify the correctness of the data prior to submitting any publications or other work based on these data and report any issues to PDS/PPI. This is a PDS4 archive of the following PDS data sets: PVO-V-OEFD-3--EFIELD-HIRES-V1.0 (https://doi.org/10.17189/1519807) PVO-V-OEFD-4--EFIELD-24SEC-V1.0 (https://doi.org/10.17189/1519808). These data sets were originally archived under PDS3 in the volumes PV01_0001 to PV01_0068. Under the PDS3 standard all archives were self contained and could in principle be stored in a single file system (disk, CD-ROM, etc.). PDS4 takes advantage of the network capabilities that allow archives to be distributed. As a result, some of the documents and metadata previously stored in the PDS3 catalog files are no longer maintained locally, but are maintained in a central repository. Those files are referenced by unique PDS logical identifiers that are included in the document collection inventory. Errata ====== Errors were found when validating PVO OEFD Data. The wrong data was included in the PDS3 versions and the correct data was included here. One file was truncated, possibly corrupted. This file was removed in this bundle. More detailed information can be found within the errata.txt file in the document collection (urn:nasa:pds:pvo-oefd-cal:document:errata). Every effort has been made to insure that the data are of the best quality available. However, users are encouraged to verify the correctness of the data prior to submitting any publications or other work based on these data and report any issues to PDS/PPI. Contacts ======== For questions or problems regarding this bundle, please contact the PDS Planetary Plasma Interactions Node: Email pds_operator@igpp.ucla.edu