Wind SWE electron moments from a later mode (post-VEIS-era) of the electron instrument. The electron moments included in this data set are derived from quadrature integration of the solar wind electron distributions (with some fitting) measured by the Wind/SWE electron instrument (see Ogilvie et al., "SWE, a comprehensive plasma instrument for the Wind spacecraft", Space Sci. Rev., 71, 55, 1995). Moment parameters are computed from 9s measurements which are usually separated by one or more 3s spin-periods. These quantities are reliable and citable with caution, meaning that the PI advises that the user should discuss their interpretations with a member of the SWE science team before publishing. The following comments are intended to aid in the use and interpretation of the prime quantities of this data set, the electron density, bulk-velocity and temperature. We compensate for the limited nature of our observations under this instrument mode by combining electron observations with bulk-velocity estimates derived from corresponding ion observations. The (13) energy channels over which observations are made are: E = 19.34, 38.68, 58.03, 77.37, 96.71, 116.1, 193.4, 290.1, 425.5, 580.3, 773.7, 1006., and 1238. eV; f(E,Az,El) [#/{cc*(cm/s)^3}] being obtained for each E, using an 8x6 grid of look-directions (Azimuth x Elevation, with ~45x9 deg. "pixels")--thus constituting an 'electron distribution'. A fitted Maxwellian model supplements the "core" regime of each distribution. N_elec [#/cc] gives the density value derived for the full distribution, while NcElec [#/cc] gives that of the core. U_eGSE and UceGSE [km/s, GSE], resp. supply the full and core bulk-velocity. P_eGSE [erg/cc, GSE] has the [Pxx, Pxy, Pxz, Pyy, Pyz, Pzz] components of the derived pressure-tensor. T_elec and TcElec [K], resp. provide the full and core total-temperatures; W_elec and WcElec [eV] specifying the corresponding thermal-energies. Te_pal, Te_per, TecPal and TecPer [K] give resp. full and core parallel- and perpendicular-temperatures (wrt B), with Te_ani and TecAni [unitless] furnishing the perpendicular/parallel temperature-anisotropies for each regime. Finally, Gyrtrp [unitless] indicates the derived electron gyrotropy. The data set reported here contains: N_elec, NcElec, U_eGSE, UceGSE, P_eGSE, T_elec, TcElec, W_elec, WcElec, Te_pal, Te_per, TecPal, TecPer, Te_ani, TecAni, and Gyrtrp (as described above).
Version:2.3.2
Wind SWE electron moments from a later mode (post-VEIS-era) of the electron instrument. The electron moments included in this data set are derived from quadrature integration of the solar wind electron distributions (with some fitting) measured by the Wind/SWE electron instrument (see Ogilvie et al., "SWE, a comprehensive plasma instrument for the Wind spacecraft", Space Sci. Rev., 71, 55, 1995). Moment parameters are computed from 9s measurements which are usually separated by one or more 3s spin-periods. These quantities are reliable and citable with caution, meaning that the PI advises that the user should discuss their interpretations with a member of the SWE science team before publishing. The following comments are intended to aid in the use and interpretation of the prime quantities of this data set, the electron density, bulk-velocity and temperature. We compensate for the limited nature of our observations under this instrument mode by combining electron observations with bulk-velocity estimates derived from corresponding ion observations. The (13) energy channels over which observations are made are: E = 19.34, 38.68, 58.03, 77.37, 96.71, 116.1, 193.4, 290.1, 425.5, 580.3, 773.7, 1006., and 1238. eV; f(E,Az,El) [#/{cc*(cm/s)^3}] being obtained for each E, using an 8x6 grid of look-directions (Azimuth x Elevation, with ~45x9 deg. "pixels")--thus constituting an 'electron distribution'. A fitted Maxwellian model supplements the "core" regime of each distribution. N_elec [#/cc] gives the density value derived for the full distribution, while NcElec [#/cc] gives that of the core. U_eGSE and UceGSE [km/s, GSE], resp. supply the full and core bulk-velocity. P_eGSE [erg/cc, GSE] has the [Pxx, Pxy, Pxz, Pyy, Pyz, Pzz] components of the derived pressure-tensor. T_elec and TcElec [K], resp. provide the full and core total-temperatures; W_elec and WcElec [eV] specifying the corresponding thermal-energies. Te_pal, Te_per, TecPal and TecPer [K] give resp. full and core parallel- and perpendicular-temperatures (wrt B), with Te_ani and TecAni [unitless] furnishing the perpendicular/parallel temperature-anisotropies for each regime. Finally, Gyrtrp [unitless] indicates the derived electron gyrotropy. The data set reported here contains: N_elec, NcElec, U_eGSE, UceGSE, P_eGSE, T_elec, TcElec, W_elec, WcElec, Te_pal, Te_per, TecPal, TecPer, Te_ani, TecAni, and Gyrtrp (as described above).
| Role | Person | StartDate | StopDate | Note | |
|---|---|---|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Keith.W.Ogilvie |
Wind/SWE (Solar Wind Experiment) electron instruments, history and data products
Repository of the Wind/SWE H5 (v01) electron data.
In CDF via HTTP from SPDF
Web Service to this product using the HAPI interface.
Timestamp marks beginning of a measurement interval.
Electron number density from full solar wind electron distribution, including fitted core.
Electron number density from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Electron bulk velocity vector in GSE from full solar wind electron distribution, including fitted core.
Electron bulk velocity vector in GSE from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Electron pressure tensor in GSE from full solar wind electron distribution, including fitted core.
Upper-right triangle of tensor, by rows.
Electron total temperature from full solar wind electron distribution, including fitted core.
Electron total temperature from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Average electron thermal-energy from full solar wind electron distribution, including fitted core.
Average electron thermal energy from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Electron parallel-temperature (wrt B) from full solar wind electron distribution, including fitted core.
Electron perpendicular temperature (wrt B) from full solar wind electron distribution, including fitted core.
Electron parallel temperature (wrt B) from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Electron perpendicular temperature (wrt B) from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Electron temperature-anisotropy (Te_Per/Te_Pal) from full solar wind electron distribution, including fitted core.
Electron temperature anisotropy (TecPer/TecPal) from fitted Maxwellian model supplementing the core regime of observed solar wind electron distribution.
Electron gyrotropy from full solar wind electron distribution, including fitted core.