Début Max Fin RégionLoc Xray Op 245MHz 10cm Sweep 1937 1937 1938 140 2222 0000 2224 II
10 CM 158 SSN 163 AFR/AP 030/030 X-RAY BACKGROUND B9.2 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 2.4E+06 GT 10 MEV 3.9E+05 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 1.90E+06 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 2 4 5 4 5 5 3 3 PLANETARY 3 3 5 5 5 5 4 3
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| Dernière classe X | 08/12/2025 | X1.1 |
| Dernière classe M | 31/12/2025 | M7.11 |
| Dernier orage géomagnétique | 02/01/2026 | Kp5 (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| décembre 2025 | 124 +32.2 |
| janvier 2026 | 113.6 -10.4 |
| 30 derniers jours | 107.6 -0.4 |