Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep None
10 CM 109 SSN 099 AFR/AP 035/048 X-RAY BACKGROUND B3.8 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 8.1E+05 GT 10 MEV 1.3E+04 P/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 2.40E+06 E/(CM2-STER-DAY) GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES) 3 HOUR K-INDICES: BOULDER 6 6 5 4 2 3 3 2 PLANETARY 7 7 5 4 3 2 3 2
EFFECTIVE 01 JUL 98, THE REFERENCE "(REAL-TIME PRELIMINARY/ESTIMATED VALUES)" WILL BE ADDED TO THE FIRST LINE OF PARAGRAPH E TO READ: "E. DAILY INDICES: (REAL-TIME PRELIMINARY/ESTIMATED VALUES)." ALSO, LEFT PARENTHESES WILL BE ADDED TO LINES 05 AND 08 OF PARAGRAPH E, EACH LINE TO READ: "(GOES-9 SATELLITE SYNCHRONOUS ORBIT W135 DEGREES)."
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| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/13 | M1.2 |
| Last geomagnetic storm | 2026/03/03 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 81.7 +3.5 |
| Last 30 days | 56.6 -72.2 |