Viewing archive of Tuesday, 11 May 1999 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
191 170C1.2C6.767

Sunspot regions

Region 8525

Number of
sunspots
Size Class Magn. Class Spot Location
1 110 -30 HSX N16W74

Region 8527

Number of
sunspots
Size Class Magn. Class Spot Location
1 0 AXX N21W63

Region 8533

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 0 -10 BXO N04E05

Region 8534

Number of
sunspots
Size Class Magn. Class Spot Location
4 30 -10 CSO S18E08

Region 8535

Number of
sunspots
Size Class Magn. Class Spot Location
8 1 310 -20 CKO N21E16

Region 8536

Number of
sunspots
Size Class Magn. Class Spot Location
18 -1 100 20 DAI S24E00

Region 8538

Number of
sunspots
Size Class Magn. Class Spot Location
4 -3 10 -10 BXO N11W76

Region 8539

Number of
sunspots
Size Class Magn. Class Spot Location
2 -2 10 -10 BXO N13E03

Region 8540

Number of
sunspots
Size Class Magn. Class Spot Location
10 1 100 20 DSO S27E33

Region 8541

Number of
sunspots
Size Class Magn. Class Spot Location
24 4 230 40 EAI N22E38

Solar flares on this day

C2.97 C2.2 C3.11

All times in UTC

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 16:08 UTC

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

Norilsk, Vorkuta
The solar wind speed is currently high (717.7 km/sec.)

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Latest alerts

16:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 16:05 UTC

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15:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 14:59 UTC

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09:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 08:59 UTC

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06:27 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 54GW at 07:01 UTC


06:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 05:51 UTC

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Space weather facts

Last X-flare2025/02/23X2.0
Last M-flare2025/03/27M2.0
Last geomagnetic storm2025/03/26Kp6+ (G2)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
March 2025132.3 -22.3
Last 30 days131.2 -21.8

This day in history*

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*since 1994

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