Radiants and data


All high-level Global Meteor Network data products (radiants, orbits, magnitudes and masses) are public and are updated every 6 hours.

The data are released under the CC BY 4.0 license, so if you are using the data for scientific purposes, we kindly ask you to reference this web site in your work, as well as the papers in the References section.

You can access the complete data set here: GMN data (documentation)


And all plots here: GMN plots

KML files with fields of view of all stations are here: KML files

Feel free to contact us if you need the data in a different format!

Oh, and here is handy tool for searching the IAU meteor shower data base: IAU search tool


The radiant plots show the latest data and are in Sun-centered ecliptic coordinates. Figure 1 illustrates the coordinate systems and show example meteoroid orbits. The Earth's apex (direction of motion around the Sun) is in the center of the plot at 270°, the Sun is left at 0°, and the anti-helion direction is at 180° of Sun-centered geocentric ecliptic longitude (X-axis on the all-sky radiant plots below). Looking at meteor radiants in these coordinates is superior to equatorial coordinates as the Earth's motion around the Sun is taken out, so there is very litte radiant drift.


Figure 1. Illustration of the Sun-centered ecliptic coordinate system.


Latest GMN radiant plots

Hover your mouse over the plots to change colour coding from geocentric velocity to density.

CMOR radiants

Current radiants by the Canadian Meteor Orbit Radar (CMOR). Note that CMOR observes 24/7 and can thus observe radiants in the helion source.

Yesterday's GMN radiant plots

Hover your mouse over the plots to change colour coding from geocentric velocity to density.

Current month's GMN radiant plots

Hover your mouse over the plots to change colour coding from geocentric velocity to density.

Last month's GMN radiant plots

Hover your mouse over the plots to change colour coding from geocentric velocity to density.

References

If you're using the data from this website in your work, we kindly ask you to cite the following papers: