[digimax]

Could it be related to the accident in France? The date fits.

https://www.heise.de/tp/features/Flamanville-Unfall-im-Fiask...

http://www.fr-online.de/politik/unfall-explosion-in-akw-in-f...

Could you pleae provide the CSV file?

[mschoebel]

Tab-delimited CSV with the raw-data:

https://geekregator.com/files/HackerNews-RawData2017.zip

The timestamps are in UTC+2. I keep the clock in the Geiger counter on daylight savings time. Too lazy to change it. :)