Begin Max End Rgn Loc Xray Op 245MHz 10cm Sweep 0821 0837 0841 C4.5 5100 33 II 1213 1217 1219 B5.7 230
10 CM 124 SSN 146 AFR/AP 015/017 X-RAY BACKGROUND B2.9 DAILY PROTON FLUENCE (FLUX ACCUMULATION OVER 24 HRS) GT 1 MEV 4.4E+05 GT 10 MEV 2.1E+04 P/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) DAILY ELECTRON FLUENCE GT 2 MEV 5.80E+07 E/(CM2-STER-DAY) (GOES-8 SATELLITE SYNCHRONOUS ORBIT W75 DEGREES) 3 HOUR K-INDICES: BOULDER 4 1 3 4 3 3 2 3 PLANETARY 4 3 3 4 3 3 3 3
ENERGETIC ELECTRON FLUXES AT GEOSYNCHRONOUS ORBIT REACHED HIGH LEVELS DURING THE PERIOD.
All times in UTC
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Minor G1 geomagnetic storm (Kp5) Threshold Reached: 02:59 UTC
Active geomagnetic conditions (Kp4) Threshold Reached: 20:19 UTC
Begin Time: 25/03/2025 12:36 UTC Estimated Velocity: 516km/sec.
The anticipated strong G3 geomagnetic storm watch never materialized as the coronal mass ejection that was supposed to arrive early yesterday didn't arrive until today just past midnight UTC. The impact was very lackluster with the Bt (total strength of the IMF) increasing to a moderate 15nT at best and the solar wind speed reaching just 420km/s. A far cry from the anticipated 700 to 800km/s. That once again goes to show how hard it is to forecast space weather events and any resulting geomagnetic conditions. We remain under the influence of the CME and high latitude sky watchers should remain alert for some nice aurora displays but middle latitude sky watchers will probably have to wait for the next opportunity.
Read moreA transequatorial coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days
Last X-flare | 2025/02/23 | X2.0 |
Last M-flare | 2025/03/21 | M1.2 |
Last geomagnetic storm | 2025/03/22 | Kp6- (G2) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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February 2025 | 154.6 +17.6 |
March 2025 | 135 -19.6 |
Last 30 days | 133.7 -19.9 |