Official Journal of the Asia Oceania Geosciences Society (AOGS)
From: Impact and mitigation of space weather effects on GNSS receiver performance
Year | Days of data | Averaged sunspot number |
---|---|---|
2002 | 251 | 177 |
2003 | 340 | 109 |
2011 | 142 | 80 |
2012 | 288 | 82 |
2013 | 148 | 94 |