aa-index inquiry form
URL: https://geomag.bgs.ac.uk/data_service/data/magnetic_indices/aaindex.html
The aa-index is a simple global geomagnetic activity index. It is derived from the K indices from two approximately antipodal observatories and has units of 1 nT. Current observatories used are Hartland in the UK, operated by BGS and Canberra in Australia, operated by Geoscience Australia.
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Additional Information
| Field | Value |
|---|---|
| Data last updated | 24 December 2025 |
| Metadata last updated | 24 December 2025 |
| Created | 24 December 2025 |
| Format | HTML |
| Licence | No Licence Provided |
| Has views | False |
| Id | 8d6d338a-001d-49b0-a38d-93efd7039e94 |
| Mimetype | text/html |
| Package id | 6dbd8a02-338a-4203-8cb5-a6805f0e5fda |
| Position | 0 |
| Resource locator function | order |
| Resource locator protocol | WWW:LINK-1.0-http--link |
| State | active |