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1) | LANL 1989 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1989/Ephemeris/PT3M | ||||||||||||||||||

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LANL-89 satellite position and magnetic field model information. |

2) | LANL1989 MPA High Resolution | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1989/MPA/PT1S | ||||||||||||||||||

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LANL1989 Magnetospheric Plasma Analyzer High Resolution Ion and Electron Data |

3) | LANL1989 MPA 86-s Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1989/MPA/PT86S | ||||||||||||||||||

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LANL1989 Magnetospheric Plasma Analyzer 86-s ion and electron key parameters |

4) | LANL 1989 87-sec Plasma Data | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1989/MPA/PT87S | ||||||||||||||||||

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The LANL 1989-046 MPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 87 s resolution. These parameters include universal time, denisty, velocity, and temperature for both low and high energy ions and electrons as well as position information and instrument status flags. |

5) | LANL 1989 60-sec SOPA Particle Data | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1989/SOPA/PT60S | ||||||||||||||||||

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The LANL 1989-046 SOPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 60 s resolution. These parameters include universal time, spacecraft location, electron and on density, electron and on temperature, electron and ion particle flux, electron and ion energies, electron and ion rangies, and data quality flags. |

6) | LANL1989 SPA 1-min Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1989/SOPA/PT60S | ||||||||||||||||||

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LANL1989 Synchronous Orbit Particle Analyzer 1-min key parameters - densities, temperatures, fluxes for 50-225 and 315-1500 keV electrons and for 50-400 keV and 1.2-5.0 MeV protons, also higher Z data |

7) | LANL 1990 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1990/Ephemeris/PT3M | ||||||||||||||||||

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LANL-90 satellite position and magnetic field model information. |

8) | LANL1990 MPA 86-s Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1990/MPA/PT86S | ||||||||||||||||||

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LANL1990 Magnetospheric Plasma Analyzer 86-s ion and electron key parameters |

9) | Los Alamos National Laboratory 1990-095 spacecraft Magnetospheric Plasma Analyzer (MPA) at 87 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1990/MPA/PT87S | ||||||||||||||||||

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The LANL 1990-095 MPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 87 s resolution. These parameters include universal time, denisty, velocity, and temperature for both low and high energy ions and electrons as well as position information and instrument status flags. |

10) | Los Alamos National Laboratory 1990-095 spacecraft Synchronous Orbit Particle Analyzer (SOPA) at 60 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1990/SOPA/PT60S | ||||||||||||||||||

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The LANL 1990-095 SOPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 60 s resolution. These parameters include universal time, spacecraft location, electron and on density, electron and on temperature, electron and ion particle flux, electron and ion energies, electron and ion rangies, and data quality flags. |

11) | LANL1990 SPA 1-min Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1990/SOPA/PT60S | ||||||||||||||||||

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LANL1990 Synchronous Orbit Particle Analyzer 1-min key parameters - densities, temperatures, fluxes for 50-225 and 315-1500 keV electrons |

12) | LANL 1991 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1991/Ephemeris/PT3M | ||||||||||||||||||

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LANL-91 satellite position and magnetic field model information. |

13) | LANL1991 MPA 86-s Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1991/MPA/PT86S | ||||||||||||||||||

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LANL1991 Magnetospheric Plasma Analyzer 86-s ion and electron key parameters |

14) | Los Alamos National Laboratory 1991-080 spacecraft Magnetospheric Plasma Analyzer (MPA) at 87 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1991/MPA/PT87S | ||||||||||||||||||

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The LANL 1991-080 MPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 87 s resolution. These parameters include universal time, denisty, velocity, and temperature for both low and high energy ions and electrons as well as position information and instrument status flags. |

15) | Los Alamos National Laboratory 1991-080 spacecraft Synchronous Orbit Particle Analyzer (SOPA) at 60 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1991/SOPA/PT60S | ||||||||||||||||||

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The LANL 1991-080 SOPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 60 s resolution. These parameters include universal time, spacecraft location, electron and on density, electron and on temperature, electron and ion particle flux, electron and ion energies, electron and ion rangies, and data quality flags. |

16) | LANL1991 SPA 1-min Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1991/SOPA/PT60S | ||||||||||||||||||

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LANL1991 Synchronous Orbit Particle Analyzer 1-min key parameters - densities, temperatures, fluxes for 50-225 and 315-1500 keV electrons |

17) | LANL 1994 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1994/Ephemeris/PT3M | ||||||||||||||||||

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LANL-94 satellite position and magnetic field model information. |

18) | LANL1994 MPA 86-s Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1994/MPA/PT86S | ||||||||||||||||||

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LANL1994 Magnetospheric Plasma Analyzer 86-s ion and electron key parameters |

19) | Los Alamos National Laboratory 1994-084 spacecraft Magnetospheric Plasma Analyzer (MPA) at 87 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1994/MPA/PT87S | ||||||||||||||||||

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The LANL 1994-084 MPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 87 s resolution. These parameters include universal time, denisty, velocity, and temperature for both low and high energy ions and electrons as well as position information and instrument status flags. |

20) | Los Alamos National Laboratory 1994-084 spacecraft Synchronous Orbit Particle Analyzer (SOPA) at 60 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1994/SOPA/PT60S | ||||||||||||||||||

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The LANL 1994-084 SOPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 60 s resolution. These parameters include universal time, spacecraft location, electron and on density, electron and on temperature, electron and ion particle flux, electron and ion energies, electron and ion rangies, and data quality flags. |

21) | LANL1994 SPA 1-min Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1994/SOPA/PT60S | ||||||||||||||||||

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LANL1994 Synchronous Orbit Particle Analyzer 1-min key parameters - densities, temperatures, fluxes for 50-225 and 315-1500 keV electrons |

22) | LANL 1997 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1997/Ephemeris/PT3M | ||||||||||||||||||

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LANL-97 satellite position and magnetic field model information. |

23) | LANL1997 MPA High Resolution Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1997/MPA/PT1S | ||||||||||||||||||

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LANL1997 Magnetospheric Plasma Analyzer High Resolution Ion and Electron Data |

24) | LANL1997 MPA 86-s Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1997/MPA/PT86S | ||||||||||||||||||

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LANL1997 Magnetospheric Plasma Analyzer 86-s ion and electron key parameters |

25) | Los Alamos National Laboratory 1997-97A spacecraft Magnetospheric Plasma Analyzer (MPA) at 87 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1997/MPA/PT87S | ||||||||||||||||||

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The LANL 1997-97A MPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 87 s resolution. These parameters include universal time, denisty, velocity, and temperature for both low and high energy ions and electrons as well as position information and instrument status flags. |

26) | Los Alamos National Laboratory 1997-97A spacecraft Synchronous Orbit Particle Analyzer (SOPA) at 60 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/1997/SOPA/PT60S | ||||||||||||||||||

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The LANL 1997-97A SOPA data set contains various parameters in a variety of coordinates systems including GEI, spacecraft, polar geographic, and polar magnetic coordinates at about 60 s resolution. These parameters include universal time, spacecraft location, electron and on density, electron and on temperature, electron and ion particle flux, electron and ion energies, electron and ion rangies, and data quality flags. |

27) | LANL1997 SPA 1-min Key Parameters | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/1997/SOPA/PT60S | ||||||||||||||||||

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LANL1997 Synchronous Orbit Particle Analyzer 1-min key parameters - densities, temperatures, fluxes for 50-225 and 315-1500 keV electrons |

28) | LANL 2001 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/2001/Ephemeris/PT3M | ||||||||||||||||||

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LANL-01 satellite position and magnetic field model information. |

29) | Los Alamos National Laboratory 01A spacecraft Magnetospheric Plasma Analyzer (MPA) at 87 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/2001/MPA/PT87S | ||||||||||||||||||

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The LANL 01A MPA data set contains numerical moments computed from measurements of the Los Alamos Magnetospheric Plasma Analyzer (MPA) [Bame et al., Rev. Sci. Inst., in press 1993]. The moments are presented in s/c coordinates: the z-axis is aligned with the spin axis, which points radially toward the center of the Earth; the x-axis is in the plane containing the spacecraft spin axis and the spin axis of the Earth, with +X generally northward; and the y-axis points generally eastward. Polar angles are measured relative to the spin axis (+Z), and azimuthal angles are measured around the z-axis, with zero along the +X direction. The moments are computed for three 'species': lop (low-ener. ions, ~1eV/e-~130eV/e); hip (hi-ener. ions, ~130eV/e-~45keV/e); alle (electrons, ~30eV - ~45keV ). The electron measurements are obtained 21.5 secs after the ion measurements. Epoch is the measurement time appropriate for the ions. The moments are computed after the fluxes are corrected for background and s/c potential. Algorithms for these corrections are relatively unsophisticated, so the moments are suspect during times of high background and/or high spacecraft potential. Because the determined spacecraft potential is not very precise, the magnitude of the low-energy ion flow velocity is probably not accurate, but the flow direction is well determined. Tperp and Tpara are obtained from diagonalization of the 3-dimensional temperature matrix, with the parallel direction assigned to the eigenvalue which is most different from the other two. The corresponding eigenvector is the symmetry axis of the distribution and should be equivalent to the magnetic field direction. The eigenvalue ratio Tperp/Tmid, which is provided for each species, is a measure of the symmetry of the distribution and should be ~1.0 for a good determination. Several of the parameters have a fairly high daily dynamic range and for survey purposes are best displayed logarithmically. These parameters are indicated by non-zero 'SCALEMIN' values in this file. A quality flag value of 1 indicates that the values are suspect because of unreliable location info. |

30) | LANL 2002 3-min Position Data | |||||||||||||||||
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Resource ID:spase://VSPO/NumericalData/LANL/2002/Ephemeris/PT3M | ||||||||||||||||||

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LANL-02 satellite position and magnetic field model information. |

31) | Los Alamos National Laboratory 02A spacecraft Magnetospheric Plasma Analyzer (MPA) at 87 sec Resolution in Spacecraft Coordinates | |||||||||||||||||
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Resource ID:spase://VMO/NumericalData/LANL/2002/MPA/PT87S | ||||||||||||||||||

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The LANL 02A MPA data set contains numerical moments computed from measurements of the Los Alamos Magnetospheric Plasma Analyzer (MPA) [Bame et al., Rev. Sci. Inst., in press 1993]. The moments are presented in s/c coordinates: the z-axis is aligned with the spin axis, which points radially toward the center of the Earth; the x-axis is in the plane containing the spacecraft spin axis and the spin axis of the Earth, with +X generally northward; and the y-axis points generally eastward. Polar angles are measured relative to the spin axis (+Z), and azimuthal angles are measured around the z-axis, with zero along the +X direction. The moments are computed for three 'species': lop (low-ener. ions, ~1eV/e-~130eV/e); hip (hi-ener. ions, ~130eV/e-~45keV/e); alle (electrons, ~30eV - ~45keV ). The electron measurements are obtained 21.5 secs after the ion measurements. Epoch is the measurement time appropriate for the ions. The moments are computed after the fluxes are corrected for background and s/c potential. Algorithms for these corrections are relatively unsophisticated, so the moments are suspect during times of high background and/or high spacecraft potential. Because the determined spacecraft potential is not very precise, the magnitude of the low-energy ion flow velocity is probably not accurate, but the flow direction is well determined. Tperp and Tpara are obtained from diagonalization of the 3-dimensional temperature matrix, with the parallel direction assigned to the eigenvalue which is most different from the other two. The corresponding eigenvector is the symmetry axis of the distribution and should be equivalent to the magnetic field direction. The eigenvalue ratio Tperp/Tmid, which is provided for each species, is a measure of the symmetry of the distribution and should be ~1.0 for a good determination. Several of the parameters have a fairly high daily dynamic range and for survey purposes are best displayed logarithmically. These parameters are indicated by non-zero 'SCALEMIN' values in this file. A quality flag value of 1 indicates that the values are suspect because of unreliable location info. |

32) | LANL MPA plasma spectra and moments plots | |||||||||||||||||
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Resource ID:spase://VSPO/DisplayData/LANL/MPA/PLOTS | ||||||||||||||||||

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Daily plots in three formats of geosynchronous MPA (Magnetospheric Plasma Analyzer) data for each relevant LANL spacecraft (7 as of 2006), separately for ions and electrons. Two spectral plots show color coded fluxes vs. time, (a) vs. energy in four 90 deg spin phase bins and (b) vs. spin phase in four energy bins. The third plot type shows many moments vs. time, including ion and electron densities, parallel and perpendicular temperatures, and distribution function symmetry axis directions. |

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