About DSCOVR/IPS and ACE/IPS

The displayed graphic shows the most recent data from DSCOVR spacecraft and provides good means to predict geomagnetic storms on earth approximately one hour in advance.
A combination of high solar wind speed, high particle density and south pointing interplanetary magnetic field (i.e. indicator showing up in the lower right part of the graphic and is colored red) leads to a major magnetic disturbance on earth.

The graphic tries to mimic the one from IPS and is produced on the fly from the most current valid DSCOVR realtime data available at National Oceanic and Atmospheric Administration (NOAA) Space Environment Center (SEC).

Horizontal axis is particle speed (km/s), vertical is north-south component of magnetic field (nT), particle density is in 1/cm3.
To show the particle density, the indicator circle is changing from green to yellow when density exceeds 10p/cm3 and from yellow to red when it exceeds 15p/cm3.

The graphic is in SVG format which is compact in data and which may be scaled at your discretion, so that also mobile clients with low bandwidth internet may display it properly.

A bit more fancy looking plots can be found on the NOAA website.

As data from DSCOVR and ACE spacecrafts is not always available, the graph shows the most recent available data. To make you aware of looking at not very recent data, a warning sign is printed next to the timestamp in the image, whenever the displayed data is older than 10 minutes.

As the older ACE spacecraft is still functioning and is delivering data, a second graph is available showing the most recent data from it's instruments. The ACE realtime data is available at National Oceanic and Atmospheric Administration (NOAA) Space Environment Center (SEC).

On the ACE graph the indicator circle is changing from green to yellow when particle density exceeds 5p/cm3 and from yellow to red when it exceeds 10p/cm3.

The graphic does not always exactly match the one from IPS as IPS seems not to respect the validity flag provided with the ACE data set.

Back to DSCOVR/ACE/IPS graphs

Copyright (C)2017 Lukas Zimmermann