VLF Chart Recording at 40khz

Whats it all about how does it work / Back to gdobsy weather page

The most recent chart:
Starts 05/28/2020 14:03:57 UT
Ends 05/28/2020 15:03:57 UT

Total observation:
Starts 05/28/2020 00:00:09 UT
Ends 05/28/2020 15:03:57 UT