Viewing archive of Friday, 11 March 2011 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
105 171 1B7C7.8612

Sunspot regions

Region 11166

Number of
sunspots
Size Class Magn. Class Spot Location
25 -30 750 120 EKC N09W26

Solar flares on this day

C4 C7.86 C4.29 C6.14 C2.86 C5.14 C1.57 C1.43 C1.43

Region 11167

Number of
sunspots
Size Class Magn. Class Spot Location
2 10 BXO N12W66

Region 11169

Number of
sunspots
Size Class Magn. Class Spot Location
15 -7 160 -60 EAI N20E04

Region 11170

Number of
sunspots
Size Class Magn. Class Spot Location
6 20 -30 HRX S25W94

All times in UTC

<< Go to daily overview page

G2 - Moderate geomagnetic storm

Observed Kp: 6
Threshold reached: 17:48 UTC

Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future

Rovaniemi, Sodankylä
Kirkenes
Murmansk, Norilsk, Vorkuta
The solar wind speed is currently moderately high (585.1 km/sec.)
The density of the solar wind is moderate (26.87 p/cm3)
The strength of the interplanetary magnetic field is moderate (14.1nT), the direction is North (4.15nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-75nT)

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Latest alerts

18:00 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 17:00 UTC

alert


17:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 16:28 UTC

alert


14:15 UTC - Geomagnetic activity

Moderate G2 geomagnetic storm (Kp6) Threshold Reached: 13:58 UTC

alert


12:18 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 13:21 UTC


11:54 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 51GW at 12:57 UTC


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Space weather facts

Last X-flare2025/02/23X2.0
Last M-flare2025/03/26M1.0
Last geomagnetic storm2025/03/22Kp6- (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025135 -19.6
Last 30 days133.7 -19.9

This day in history*

Solar flares
12001M3.86
22000M3.34
32001M3.14
41998M2.37
52024M1.9
DstG
11976-226G4
21991-168G4
31988-154G3
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*since 1994

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