Search Results

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Data Sets and Information
• collection: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) Solar EUV Data Collection
  This data collection contains a file that gives the magnitude of the photoemission current from the radial probe, Ipe, (in units of 10-9 amps) for orbits 0001 to 4800.
• collection: PVO ONMS Superthermal Ion Location Data Collection
  This data collection contains a data file that includes start and stop times/locations where superthermal ions were detected by the Neutral Mass Spectrometer instrument aboard the Pioneer Venus Orbiter.
• collection: Pioneer Venus Orbiter Radio Occultation Profiles Derived Data Collection
  Derived data products from Pioneer Venus Orbiter radio occultations at Venus. Derived data products include: (A) frequency data from the NSSDC, (B) Venus ionospheric electron density profiles from the NSSDC, (C) Venus neutral atmospheric profiles from the NSSDC, (D) Venus ionospheric electron density profiles from graphical sources, and (E) Venus neutral atmospheric profiles from graphical sources.
• collection: Pioneer Venus Orbiter (PVO) Ion Mass Spectrometer High-Res Data Collection
  This collection includes derived Pioneer Venus Orbiter high-resolution ion density data from the OIMS instrument for PVO. It contains it contains sample mass and density data for orbits 1-5055, including data for the period periapsis +/- 30 minutes for each orbit. The collection is divided into multiple files which contain 1 orbit.
• collection: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) High-Res. Data Collection
  This data collection contains derived high resolution number density of electrons (Ne) data, from Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) from 1978-12-05 to 1992-10-07. High resolution measurements are typically available at 2 to 8 second intervals depending upon the telemetry rate available to the OETP at the time.
• bundle: Pioneer Venus Orbiter (PVO) Neutral Mass Spectrometer (ONMS) Data Bundle
  This bundle includes the following Pioneer Venus Orbiter (PVO) Neutral Mass Spectrometer (ONMS) collections: Ion Max Count Rate Data, Neutral Density 12 Sec Data, Neutral Density High-Res. Data, Superthermal Ion Location Data, Superthermal Oxygen 12 Second Data, Superthermal Oxygen High-Res. Data, and Thermal Ion 12 second Data.
• bundle: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) Data Bundle
  This bundle includes PVO Electron Temperature Probe (OETP) collections: High-Res., Low-Res., Ionopause, Bow Shock, Solar EUV, and Browse Plot.
• collection: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) Bow Shock Data Collection
  This data collection contains the orbit-by-orbit times and locations of the bow shock crossings, which are characterized by distinct changes in Ne. Multiple shock crossing are listed if they are sufficiently separated to be resolved accurately. (Bow shock crossings will be evident in the High Resolution Ne File when they occurred within 30 minutes of periapsis)
• collection: PVO ONMS Ion Max Count Rate Data Collection
  This data collection contains a file with PVO Neutral Mass Spectrometer (ONMS) derived ion max count rate data for all Venus orbits(1 1978-12-05T15:06:31.820; 5055 1992-10-07T19:50:28.680).
• bundle: Pioneer Venus Orbiter (PVO) Ion Mass Spectrometer Data Bundle
  This bundle includes Pioneer Venus Orbiter (PVO) Ion Mass Spectrometer High-Resolution and Pioneer Venus Orbiter (PVO) Ion Mass Spectrometer Low-Resolution data.
• collection: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) Ionopause Data Collection
  This data collection contains orbit-by-orbit times and locations of the ionopause crossings, which are evident as sharp gradients in Ne at the top of the ionosphere. (These crossings always occur within 30 minutes of periapsis, so they may be seen in the High Resolution Ne files)
• collection: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) Browse Plot Collection
  This collection contains PDF/A files that contains plots of PVO electron number density data from Venus Orbital Operations.
• collection: PVO ONMS Superthermal Oxygen High-Res. Data Collection
  This data collection contains PVO Neutral Mass Spectrometer (ONMS) derived superthermal oxygen high res data. The data has one point for each point measured, that went into a successful data fitting for that time interval. The individual flux and density values are computed by dividing each data value by the value of the fitting function at the corresponding time.
• collection: Pioneer Venus Orbiter (PVO) Ion Mass Spectrometer Low-Res Data Collection
  This collection contains Pioneer Venus Orbiter low-resolution ion number densities data recorded by the Ion Mass Spectrometer (OIMS), from PVO Venus.
• collection: PVO ONMS Thermal Ion 12 Second Data Collection
  This data collection contains a data file with PVO Neutral Mass Spectrometer (ONMS) derived Thermal Ion 12 second data from 1980-03-15T10:26:29.656 to 1992-09-25T23:09:39.859.
• collection: PVO ONMS Superthermal Oxygen 12 Second Data Collection
  This data collection contains a file with PVO neutral mass spectrometer (ONMS) derived superthermal oxygen 12 second data for all Venus orbits (1 1978-12-07T15:07:22.817; 4368 1990-11-21T02:01:19.648; 4494 1991-03-27T01:25:54.275; 4975 1992-07-20T00:22:15.544).
• collection: Venus Solar Wind Interactions Data
  This collection contains the data presented in Brecht, S. H. and S. A. Ledvina, An explanation of the nightside ionospheric structure of Venus, JGR, 2020. The data is stored in ASCII (text) format for easy reading. Units for the results are in the cgs system, densities (cm^-3), magnetic field (Gauss) and lengths (cm). The magnetic field can be found in the B-GradPe.dat.gz. The O+ density is designated by 2s in the file name. The O2+ density is designated by 3s in the file name. There are 2 types of data files, *.dat.gz and *.sdat.gz. The *.dat files contain the data stored on the Cartesian grid, while the *.sdat contains the data stored on the spherical mesh.
• collection: Pioneer Venus Orbiter (PVO) Electron Temperature Probe (OETP) Low-Res. Data Collection
  This data collection includes the Ne, Te and Vs measurements derived by fitting the radial probe voltampere curves taken whenever PVO was within the ionosphere (ie., between the inbound and outbound ionopause crossings). Data from essentially every orbit in 1979 and 1980 included ionosphere transits.
• collection: PVO ONMS Neutral Density High-Res. Data Collection
  This collection contains PVO Neutral Mass Spectrometer (ONMS) derived neutral density high resolution data for all Venus orbits (3 1978-12-07T14:29:47.668Z; 640 1980-09-05T17:15:20.875Z; 4961 1992-07-06T00:23:50.044Z; 5055 1992-10-07T19:50:36.144Z).
• collection: PVO ONMS Neutral Density 12 Sec Data Collection
  This data collection contains a file with PVO Neutral Mass Spectrometer (ONMS) derived neutral density 12 sec data for all Venus orbits(3 1978-12-07T14:30:47.000Z; 640 1980-09-05T17:14:34.016Z; 4961 1992-07-06T00:26:53.847Z; 5055 1992-10-07T19:49:39.752Z).