Space Weather Data

This page is dedicated to tracking Space Weather Data: The Sun, Solar Flares, KP Index, ENLIL Model, Aurora Forecast and space weather data in general.


The Sun – Watch the last 48h

Images captured by the NASA Solar Dynamics Observatory in 131 Ångström, wavelength which is designed to study solar flares.


Solar Flares

GOES X-Ray flux plotThe GOES X-ray flux chart keeps track of solar activity and it is used for identifying solar flares.

Solar flares are large outbursts of electromagnetic radiation occurring on the Sun’s surface and lasting from minutes to hours. Large X class solar flares can realse an amount of energy equivalent to millions of 100-megaton hydrogen bombs or ten million times greater than the energy released from a volcanic explosion.

The Red and Orange lines indicate the range of the X-ray flux (A, B, C, M and X). The most significant events are the M and X class solar flares which, if accompanied by strong radio bursts may cause problems for satellite communication and GPS navigation.

This set of data is measured by the GOES satellites in the 1-8 Angstrom (0.1-0.8 nm) and 0.5-4.0 Angstrom (0.05-0.4 nm) wavelengths. The GOES X-ray three-day plot contains 5 minute averages of solar X-rays.



Magnetic Field & Solar Wind Electron Proton Alpha Monitor (SWEPAM)

GOES Proton Flux 3-day PlotThe Bt value represents the strength of the Interplanetary Magnetic Field (IMF) mesured in nanotesla (nT), while the Bz value indicates the direction of the IMF in Earth’s N-S axis.

Phi is the angle made by the Interplanetary Magnetic Field (IMF) in Earth’s XY plane.When Phi is between 90° & 270° the IMF is positive and pointing away from to Sun. When Phi is between 0° & 90° and 270° & 360° the IMF is negative and pointing toward the Sun.

Solar wind density – ranges from 0.1 to 100 particles per cubic centimeter. Average density values are between 1 and 5 particles cm3.

Solar wind speed in Km/s.
Slow wind: 250 – 400 Km/s   Fast wind: 400 – 800 Km/s

Solar wind temperature in Kelvin °.
The average temperatures for plasma are between 10 000° – 100 000° Kelvin



Planetary K index (Kp)

Planetary K-index 3-day Plot


Kp < 4 Calm geomagnetic conditions
Kp = 4 Unsettled geomagnetic conditions
Kp > 4 Geomagnetic storm
Kp > 6 Severe geomagnetic storm












The latest WSA-Enlil solar wind prediction plot and animation