The Kp-index

Help

USAF Wing Kp-index

This is the Wing-Kp index from the U.S. Air Force Weather Agency. The Wing Kp model uses solar wind data to produce a 1-hour advance prediction of the level of geomagnetic activity, as represented by the planetary K-index, every 15 minutes. It is expressed in a scale of thirds and has 28 values. The Wing Kp model also provides an observed Kp-value from a magnetometer network of the USAF but this is not a real-time measurement.

Observed Kp: 2
Predicted Kp: 1 (+54m Kp: 1+)

GFZ Potsdam Quicklook Kp-index

This is the Quicklook Kp-index from the GFZ German Research Centre for Geosciences. This is a preliminary Kp-index which estimates the Kp-index in 3-hour periods. It is expressed in a scale of thirds and has 28 values.

NOAA SWPC Planetary K-index

This is the planetary K-index from the NOAA SWPC. This is a preliminary Kp-index that is updated every minute by the NOAA SWPC with an estimate of the measured Kp of the past 3 hours based on eight ground-based magnetometers around the world. This estimated 3-hour planetary Kp-index consists of 10 values and ranges from 0 to 9. It is important to understand that this Kp-index isn't a forecast or an indicator of the current conditions, it always shows the Kp-value that was observed during a certain period.

Current data suggest that it is not possible to see aurora now at middle latitudes

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 30% 30%
Middle latitude 5% 1%
Predicted Kp max 2
Solar activity
M-class solar flare 5%
X-class solar flare 1%

Support SpaceWeatherLive.com!

A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!

14%

Get instant alerts!

Space weather facts

Last X-flare:2015/05/05X2.7
Last M-flare:2016/11/29M1.2
Last geomagnetic storm:2017/02/01Kp5 (G1)
Number of spotless days in 2017:11
Last spotless day:2017/02/08

This day in history*

Solar flares
12002M4.4
22002M3.9
32000M1.8
42002M1.4
51999M1.3
ApG
1199495G4
2200021G1
3200619
4200314
5201410
*since 1994