Data Access
SWE is a comprehensive plasma instrument for the WIND spacecraft, see K.W.Ogilvie, et al., Space Sci. Rev., 71, 55-77, 1995. This product provides solar wind proton parameters, including anisotropic temperatures, derived by non-linear fitting of the measurements and with moment techniques. Data reported within this product do not exceed the limits of various parameters listed in the following section. There may be more valid data in the original dataset that requires additional work to interpret but were discarded due to the limits. In particular we have tried to exclude non-solar wind data from these files. We provide the one sigma uncertainty for each parameter produced by the non-linear curve fitting analysis either directly from the fitting or by propagating uncertainties for bulk speeds, flow angles or any other derived parameter. For the non-linear anisotropic proton analysis, a scalar thermal speed is produced by determining parallel and perpendicular temperatures, taking the trace, Tscalar = (2Tperp + Tpara)/3 and converting the result back to a thermal speed. The uncertainties are also propagated through.
Version:2.2.9
SWE is a comprehensive plasma instrument for the WIND spacecraft, see K.W.Ogilvie, et al., Space Sci. Rev., 71, 55-77, 1995. This product provides solar wind proton parameters, including anisotropic temperatures, derived by non-linear fitting of the measurements and with moment techniques. Data reported within this product do not exceed the limits of various parameters listed in the following section. There may be more valid data in the original dataset that requires additional work to interpret but were discarded due to the limits. In particular we have tried to exclude non-solar wind data from these files. We provide the one sigma uncertainty for each parameter produced by the non-linear curve fitting analysis either directly from the fitting or by propagating uncertainties for bulk speeds, flow angles or any other derived parameter. For the non-linear anisotropic proton analysis, a scalar thermal speed is produced by determining parallel and perpendicular temperatures, taking the trace, Tscalar = (2Tperp + Tpara)/3 and converting the result back to a thermal speed. The uncertainties are also propagated through.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Keith.W.Ogilvie |
| 2. | CoInvestigator | spase://SMWG/Person/Alan.J.Lazarus |
| 3. | DataProducer | spase://SMWG/Person/Justin.C.Kasper |
Descriptive excerpt from J. Kasper Ph.D. dissertation
CDAWeb's ftp area for CDF-formatted data
In CDF via HTTP from SPDF
Subset, plot, list via CDAWeb
Subset, plot, list via FTPBrowser
SPDF's ftp area for ASCII-formatted data
In CDF via HTTP from SPDF
Ftp path at VHO
Time, centered, in NSSDC Epoch
Proton bulk speed V (km/s) from non-linear analysis
One sigma uncertainty in Proton bulk speed V (km/s) from non-linear analysis
Proton bulk velocity component Vx (GSE, km/s) from non-linear analysis
One sigma uncertainty in proton bulk Vx, (km/s) from non-linear analysis
Proton bulk velocity component Vy (GSE, km/s) from non-linear analysis
One sigma uncertainty in proton bulk Vy, (km/s) from non-linear analysis
Proton bulk velocity component Vz (GSE, km/s) from non-linear analysis
One sigma uncertainty in proton bulk Vz, (km/s) from non-linear analysis
Scalar proton thermal speed W (km/s), trace of anisotropic temperatures
One sigma uncertainty in proton trace thermal speed W
Proton thermal speed Wperpendicular (km/s) from non-linear analysis
One sigma uncertainty in proton Wperpendicular nonlin (km/s)
Proton thermal speed Wparallel (km/s) from non-linear analysis
One sigma uncertainty in proton Wparallel (km/s)
East-West flow angle (degrees)
One sigma uncertainty in E-W flow angle
North-South flow angle (degrees)
One sigma uncertainty in N-S flow angle
Proton number density Np (n/cc) from non-linear analysis
One sigma uncertainty in proton Np nonlin (n/cc)
Alpha speed Vbulk (km/s) from non-linear analysis
One sigma uncertainty in Alpha bulk speed V (km/s) from non-linear analysis
Alpha bulk velocity component Vx (GSE, km/s) from non-linear analysis
One sigma uncertainty in Alpha bulk Vx, (km/s) from non-linear analysis
Alpha bulk velocity component Vy (GSE, km/s) from non-linear analysis
One sigma uncertainty in Alpha bulk Vy, (km/s) from non-linear analysis
Alpha bulk velocity component Vz (GSE, km/s) from non-linear analysis
One sigma uncertainty in Alpha bulk Vz, (km/s) from non-linear analysis
Scalar Alpha thermal speed W (km/s),trace of anisotropic temperatures
One sigma uncertainty in Alpha trace thermal speed W
Alpha number density Na (n/cc) from non-linear analysis
One sigma uncertainty in alpha Na (n/cc) from non-linear analysis
CHISQ/DOF goodness of fit of assumed convecting Maxwellian distribution functions to the actual observations
Proton bulk speed V (km/s) from moment analysis
Proton velocity component Vx (GSE, km/s) from moment analysis
Proton velocity component Vy (GSE, km/s) from moment analysis
Proton velocity component Vz (GSE, km/s) from moment analysis
Proton thermal speed W (km/s) from isotropic moment analysis
Proton thermal speed Wperpendicular (km/s) from bimax moment analysis
Proton thermal speed Wparallel (km/s), from bimaxwellian moment analysis
Proton number density Np (n/cc) from moment analysis
Magnetic field component Bx (GSE, nT) averaged over plasma measurement
Magnetic field component By (GSE, nT) averaged over plasma measurement
Magnetic field component Bz (GSE, nT) averaged over plasma measurement
Angular deviation of magnetic field over plasma measurement (degrees)
Deviation in magnetic field magnitude over plasma measurement (nT)
X (GSE) Position of Wind S/C at start of spectrum (Re)
Y (GSE) Position of Wind S/C at start of spectrum (Re)
Z (GSE) Position of Wind S/C at start of spectrum (Re)
Y (GSM) Position of Wind S/C at start of spectrum (Re)
Z (GSM) Position of Wind S/C at start of spectrum (Re)