Solar wind¶
Dictionary: solar_wind_params · Class: SolarWindParams
Used by: all functions (ignored if serverdata/livedata supply these instead)
Manual solar wind and IMF values, used when not pulling data from the OMNI server or live NOAA feed. Several external field models (see magfield_params["externalmag"]) need specific fields here to be non-default.
Defaults are quiet-time values: the median of each input over OMNI data from 1996 to 2025 when Kp ≤ 1. OTSO uses them for any key you leave out, unless serverdata or livedata is on. See Default space weather conditions.
| Key | Type | Default | Description |
|---|---|---|---|
vx |
float | -359.4 | Solar wind velocity x-component (km/s). OTSO expects this pointed sunward-to-Earth; a positive value is auto-flipped negative internally. |
vy |
float | 0 | Solar wind velocity y-component (km/s). |
vz |
float | 0 | Solar wind velocity z-component (km/s). |
bx |
float | 0.11 | IMF x-component (nT). |
by |
float | -0.16 | IMF y-component (nT). |
bz |
float | 0.58 | IMF z-component (nT). Southward (negative) IMF drives stronger geomagnetic activity. |
by_avg |
float | -0.17 | IMF By averaged over the preceding 30 minutes (nT). Needed by TSY15N/TSY15B/TA16. |
bz_avg |
float | 0.59 | IMF Bz averaged over the preceding 30 minutes (nT). Needed by TSY15N/TSY15B/TA16. |
density |
float | 4.94 | Solar wind proton density (particles/cm³). |
pdyn |
float | 1.31 | Solar wind dynamic pressure (nPa). If you set it to 0, or give density or a velocity without pdyn, OTSO computes it from the density and velocity. |