VLF Chart Recording at 40khz

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

The most recent chart:
Starts 05/17/2022 19:43:58 UT
Ends 05/17/2022 20:43:58 UT

Total observation:
Starts 05/17/2022 00:00:08 UT
Ends 05/17/2022 20:43:58 UT