This set of IMP 7 LANL 1-hour solar wind plasma parameter data includes temperature anisotropy and alpha/proton ratio. This hourly resolution data set was created at NSSDC in the year 2003 by averaging 2-min resolution solar wind data provided over the years by LANL. Magnetosheath data were excluded from the 2-min data by LANL. This data set supersedes hourly solar wind data provided by LANL over the years.
Version:2.2.9
This set of IMP 7 LANL 1-hour solar wind plasma parameter data includes temperature anisotropy and alpha/proton ratio. This hourly resolution data set was created at NSSDC in the year 2003 by averaging 2-min resolution solar wind data provided over the years by LANL. Magnetosheath data were excluded from the 2-min data by LANL. This data set supersedes hourly solar wind data provided by LANL over the years.
| Role | Person | |
|---|---|---|
| 1. | GeneralContact | spase://SMWG/Person/John.T.Gosling |
In CDF via HTTP from SPDF
The three universal time columns from left to right are: year, day of year, and hour of the day.
Universal Time expressed in two columns yymmdd and hhmms.
Numer of points to determine average values. Not entirely clear if this is correct interpretation from the descripttion in IMP7_1hrave_00readme.txt.
Location of the spacecraft in solar ecliptic coordinates in units of kilometers and degrees. The coordinate system is not clear. Assumed thhat the coordinate system is solar ecliptic based on the 2 min averages.
IMP7 density values in units of #/cm^3.
IMP7 speed values in units of km/s.
IMP7 flow azimuth direction in units of degrees. The units are not entirely clear. Assumed thhat the units are degrees based on the 2 min averages.
Maximum proton temprature in units of Kelvin.
Minimum proton temprature in units of Kelvin.
Proton temprature in units of degrees.
Pressure tensor symmetry axis in units of degrees. This description is based on the IMP7 2 min averaged data.
Ratio of alphas to protons.
Relative flow speed of alphas to protons in units of km/s.
Relative Flow Angle of alphas to protons in units of degrees.
Ratio of the temperature of the alphas to the temperature of the protons.
Standard deviation of the location of the spacecraft in solar ecliptic coordinates in units of kilometers and degrees. The coordinate system is not clear. Assumed thhat the coordinate system is solar ecliptic based on the 2 min average data files.
Standard deviation in the density values in units of #/cm^3.
Standard deviation in the speed values in units of km/s.
Standard deviation in the flow azimuth direction in units of degrees. The units are not entirely clear. Assumed thhat the units are degrees based on the 2 min averages.
Standard deviation in the maximum proton temprature in units of Kelvin.
Standard deviation in the minimum proton temprature in units of Kelvin.
Standard deviation in the proton temprature in units of degrees.
Pressure tensor symmetry axis in units of degrees. This description is based on the IMP7 2 min averaged data.
Standard deviation in the ratio of alphas to protons.
Standard deviation in the relative flow speed of alphas to protons in units of km/s.
Standard deviation in the relative flow angle of alphas to protons in units of degrees.
Standard deviation in the ratio of the temperature of the alphas to the temperature of the protons.