The JSON data archive contains the impact data calculated by blitzortug.org in text data files. The container directories contain sub-directories named by the date and time of the lightning strikes in UTC times. Each data file contains impact positions of 10 minutes. The hours are divided into 10 minute intervals. Each line of these files consists of one variable coded in "JSON" (JavaScript Object Notation) format. Older files are only available as zgip files.
The
Example: The file
contains the data calculated in container 1 (for region 1, Europe 1) on August 21, 2024 between 9:10.000000000 and 9.19.999999999 UTC.
Each line of the data files contains one JSON codes variable with the following members:
| name | description |
| time | timestamp in nanoseconds since midnight on January 1, 1970 |
| lat | latitude in degrees (decimal) |
| lon | longitude in degrees (decimal) |
| alt | altitude above sea level in meters |
| pol | polarity, -1 or +1 |
| mds | maximum deviation range in nanoseconds |
| mcg | smallest all-covering sector in degrees (example: 210 degrees = the detectors are in a sector of 150 degrees from the impact location) |
| status | status (optional) |
| sig | array of signals involved |
Each signal of the sig array may have have the following members.
| name | description |
| sta | station that has received the signal |
| time | time difference to the time of the lightning strike in nanoseconds |
| lat | latitude of the detector in degree (decimal) |
| lon | longitude of the detector in degree (decimal) |
| alt | altitude of the detector above sea level in meters |
| status | status of the signal (bit 1 = polarity negative, bit 2 = polarity positive, bit 3 = signal is used for the computation) |
