Data Access
This data product contains 1-hour averaged values of solar wind proton flow speed, density, and temperature and corresponding thermal speed. The records also hold flow velocity vector components and direction angles in HERTN and RTN coordinates. Chi-squared and statistical uncertainties are included, as are various flags. STEREO position information is given in radial distance and HEE, HEEQ and HCI direction angles.
Version:2.2.9
This data product contains 1-hour averaged values of solar wind proton flow speed, density, and temperature and corresponding thermal speed. The records also hold flow velocity vector components and direction angles in HERTN and RTN coordinates. Chi-squared and statistical uncertainties are included, as are various flags. STEREO position information is given in radial distance and HEE, HEEQ and HCI direction angles.
| Role | Person | |
|---|---|---|
| 1. | PrincipalInvestigator | spase://SMWG/Person/Antoinette.B.Galvin |
In ASCII via ftp from SSC
In CDF via ftp from SSC
Beginning of time interval
Time of observation in Year, Day, and milliseconds
Inidcates possible error condition. 0=no known issues, 1=Processing error, 2=Level 1 error, 3=Data overflow, 4=Data outside 3-sigma limit (1 hr window). 5=Data gap (usually due to operations, 6=Jump in thermal speed, use caution, 7=Suspicious thermal speed, 8=Removed by hand.
Indicates how sensitive the density value is to method for determining background correction. 0=no issues (lt 5% effect). 1=minor issues (5-10% effect). 2=use with caution (gt 10% effect).
Indicates how many 1-min cycles were included in average
Indicates how many 1-min cycles were included in average.
Indicates how many 1-min cycles were included in average. Used for N/S flow angle (instrument coordinates only)
Indicates how many 1-min cycles were included in average. Used for velocity components, and angles (except ns_inst).
Indicates when instrument flow angles are not in nominal s/c orientation. 0=OK. 1=problem. [roll, yaw, pitch]
Source Flage for EW Data. 1st elem=source: 0=main (no data). 1=schan. 2=mixed (data from schan). 3=combination. 2nd elem=flag: 0=got peak in dist. 1=missed peak. 2=combination
Reduced Chi Square for 1D Maxwellian fit
Preliminary Statistical Uncertainty for the Angles
Proton Number Density. 1D Maxwellian Fit
Proton Bulk Speed. 1D Maxwellian Fit
Proton Temperature. 1D Maxwellian Fit
Proton Thermal Speed. 1D Maxwellian Fit
Proton Flow Angle North/South. 1D Maxwellian Fit. Instrument Coordinates. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0). No aberration angle. No transformation.
Proton East/West Flow Angle. Instrument Coordinates. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0). inst. No aberration angle. No transformation.
Proton Flow Angle North/South. 1D Maxwellian Fit. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0). No aberration angle. No transformation.
Proton East/West Flow Angle. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0). inst. No aberration angle. No transformation.
Proton Vr. 1D Maxwellian Fit. HERTN coordinates
Proton Vt. 1D Maxwellian Fit. HERTN coordinates
Proton Vn. 1D Maxwellian Fit. HERTN coordinates
Proton Flow Angle North/South. 1D Maxwellian Fit. Angle gt 0 means flow from S of ecliptic plane (i.e. Vn gt 0)
Proton East/West Flow Angle. Angle gt 0 means flow from E of the sun (i.e. Vt gt 0).
Proton Vr. 1D Maxwellian Fit. HERTN coordinates
Proton Vt. 1D Maxwellian Fit. HERTN coordinates
Proton Vn. 1D Maxwellian Fit. HERTN coordinates
Carrington Rotation Number
Spacecraft Longitude - Carrington
Heliocentric Distance
Spacecraft longitude - HEE
Spacecraft latitude - HEE
Spacecraft longitude - HEEQ
Spacecraft latitude - HEEQ
Spacecraft longitude - HCI
Spacecraft latitude - HCI