urn:nasa:pds:cassini-rpws-electron_density:data:rpws_fpe_2006-205_v1 1.0 1.13.0.0 Product_Observational 2020-01-26 1.0 Initial version 2006-07-24T00:00:00.556Z 2006-07-24T10:21:18.318Z Science Derived The primary result of this archive is the local plasma electron number density derived by tracing features in frequency-time spectrograms. Other characteristic plasma frequencies, magnetic field values, and trajectory coordinates are also included. Magnetosphere Ionosphere Particles Electrons Plasma CASSINI-HUYGENS Mission urn:nasa:pds:context:investigation:mission.cassini-huygens data_to_investigation Cassini RPWS CASSINI ORBITER Spacecraft urn:nasa:pds:context:instrument_host:spacecraft.co is_instrument_host RADIO AND PLASMA WAVE SCIENCE for CO Instrument urn:nasa:pds:context:instrument:rpws.co is_instrument Saturn Planet urn:nasa:pds:context:target:planet.saturn data_to_target Tour rpws_fpe_2006-205_v1.csv 2019-08-16T02:31:34 565808 c1fad181cfabd9211ace14189f8b0da7

CSV Header 0 1916 7-Bit ASCII Text

1916 PDS DSV 1 2058 Carriage-Return Line-Feed Semicolon 45 0 SCET ASCII_Date_Time_YMD Spacecraft event time for the electron density measurement TARGET ASCII_Integer An integer indicating the target of the investigation when this density measurement was taken. The allowed values and the targets they represent are: 0=Saturn, 1=Enceladus, 2=Jupiter, 3=Earth ELECTRON_DENSITY ASCII_Real 1/cm**3 The number of electrons per cubic centimeter calculated either from the value in the electron plasma frequency field according to the well known equation: n_e = ( f_pe / 8980.0 ) ** 2 or from the values in the electron cyclotron frequency and upper hybrid freqency fields according to the well known equation: n_e = ( f_uh**2 - f_ce**2 ) / 8980.0**2 where n_e is electron density in particles per cubic centimeter, f_pe is the electron plasma frequency, f_ce is the electron cyclotron, and f_uh is the upper hybrid frequency. The frequency values used are determined by the MEASURED_ITEM field. ERROR_FLAG ASCII_Integer An integer indicating the method used for determining the electron density error value. The allowed values and the methods they represent are: 0=automated, 1=manual ELECTRON_DENSITY_ERROR ASCII_Real A normalized electron density error value. FREQ_FCE ASCII_Real Hz Electron cyclotron frequency derived from local magenetic field measurements when available. Values calculated from a model magnetic field are used where measured values are not available. MEASURED_VALUE ASCII_Real Hz The frenquency value used to derive the electron density field MEASURED_ITEM ASCII_Integer An integer indicating which frequency value was measured from Cassini Low Rate spectral density data. The allowed values and the frequencies they indicate are: 0=upper hybrid frequency, 1=plasma frequency cutoff. FREQ_PLASMA ASCII_Real Hz Plasma frequency cutoff. Measured or calculated, as indicated by the measured item field. FREQ_UPPER_HYBRID ASCII_Real Hz Upper hybrid frequency. Measured or calculated, as indicated by the measured item field. FREQ_R_EQUALS_ZERO ASCII_Real Hz The R=0 frequency in Hz as calculated from the equations of cold plasma theory using the measured value and the cyclotron frequency. FREQ_L_EQUALS_ZERO ASCII_Real Hz The L=0 frequency in Hz as calculated from the quations of cold plasma theory using the measured frequency and the cyclotron frequency. ORBIT_NUMBER ASCII_String The orbit number. SATURN_RADIUS ASCII_Real The distance of the Cassini spacecraft from the center of Saturn in units of Saturn radii [Rs] where 1 Rs is 60258 km. SATURN_IAU_LONGITUDE ASCII_Real deg Saturn west longitude based on a longitude system described in Seidelmann et al.:2002, "Report on the IAU/IAG Working Group on Cartographic Coordinates and Rotational Elements of the Planets and Satellites: 2002" SATURN_SLS4_S_LONGITUDE ASCII_Real deg West longitude based on the SLS4 system (south) SATURN_SLS4_N_LONGITUDE ASCII_Real deg West longitude based on the SLS4 system (north) SATURN_SLS5_S_LONGITUDE ASCII_Real deg West longitude based on the SLS5 system (south) SATURN_SLS5_N_LONGITUDE ASCII_Real deg West longitude based on the SLS5 system (north) SATURN_LOCAL_TIME ASCII_Real hr Saturn local time in hours SATURN_KRONOGRAPHIC_LATITUDE ASCII_Real deg Saturn latitude SATURN_MAGNETIC_LATITUDE ASCII_Real deg Saturn magnetic latitude SATURN_L ASCII_Real Saturn L-shell in Rs where 1 Rs is 60268km SATURN_L_OFFSET ASCII_Real Saturn L offset in Rs wher 1 Rs is 60268km and offset is 2293km north SATURN_SOLAR_EQUATORIAL_X ASCII_Real position in the planet->sun plane positive towards the sun in Rs where 1 Rs is 60268km SATURN_SOLAR_EQUATORIAL_Y ASCII_Real Z x X in Rs where 1 Rs is 60268km SATURN_SOLAR_EQUATORIAL_Z ASCII_Real position along the northward spin axis of the planet in Rs where 1 Rs is 60268km SATURN_ALTITUDE ASCII_Real km altitude in km ENCELADUS_ENCOUNTER_NUMBER ASCII_String An id assigned to each period of close approach to Enceladus ENCELADUS_RADIUS ASCII_Real The distance from the center of Enceladus in units of Enceladus radii [Renc] where 1 Renc is 252.1 km. ENCELADUS_COROTATIONAL_X ASCII_Real X component of Enceladus-centered cartesian system with X in direction of Saturn-driven co-rotating plasma, Y intersecting Saturn's rotational axis, and Z parallel to Saturn's rotational axis ENCELADUS_COROTATIONAL_Y ASCII_Real Y component of Enceladus-centered cartesian system with X in direction of Saturn-driven co-rotating plasma, Y intersecting Saturn's rotational axis, and Z parallel to Saturn's rotational axis ENCELADUS_COROTATIONAL_Z ASCII_Real Z component of Enceladus-centered cartesian system with X in direction of Saturn-driven co-rotating plasma, Y intersecting Saturn's rotational axis, and Z parallel to Saturn's rotational axis ENCELADUS_TRUE_ANOMALY ASCII_Real deg Angle between the direction of periapsis and the current position of Enceladus in the Enceladus orbital plane ENCELADUS_PERIAPSIS_TIME ASCII_Date_Time_YMD Date and time of the most recent Enceladus periapsis JUPITER_RADIUS ASCII_Real Radial distance from center of planet to spacecraft in Jupiter radii, 71492 km JUPITER_SYSTEMIII_LONGITUDE ASCII_Real deg System III planetographic longitude JUPITER_MAGNETIC_LATITUDE ASCII_Real deg Latitude relative to nominal magnetic dipole equator JUPITER_MAGNETIC_LOCAL_TIME ASCII_Real hr Local time in magnetic coordinates such that 12h occurs at the sub-solar point JUPITER_L ASCII_Real L-shell parameter defined relative to the nominal magnetic dipole, L = r / cos^2(mlat) IO_PHASE ASCII_Real deg Angle of Io orbital position in the orbital plane relative to the anti-spacecraft direction EARTH_RADIUS ASCII_Real The distance from the center of Earth in units of Earth radii [Re] where 1 Re is 6371 km. EARTH_MAGNETIC_LATITUDE ASCII_Real deg Latitude relative to nominal magnetic dipole equator EARTH_LOCAL_TIME ASCII_Real hr Local time in geographic coordinates such that 12h occurs at the sub-solar point EARTH_L ASCII_Real L-shell parameter defined relative to the nominal magnetic dipole, L = r / cos^2(mlat)