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Viewing archive of Tuesday, 21 January 2014 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxC
141 102B7.14C2.984

Sunspot regions

Region 11949

Number of
sunspots
Size Class Magn. Class Spot Location
2 20 -70 HAX S15W84
HMIIF
HMIBC

Region 11952

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 30 -20 HSX S32W42
HMIIF
HMIBC

Region 11955

Number of
sunspots
Size Class Magn. Class Spot Location
1 -1 40 -20 HAX S14E09
HMIIF
HMIBC

Solar flares on this day

C1.27

Region 11957

Number of
sunspots
Size Class Magn. Class Spot Location
8 -1 30 DRO N12E07
HMIIF
HMIBC

Region 11958

Number of
sunspots
Size Class Magn. Class Spot Location
1 50 10 CSO S07E36
HMIIF
HMIBC

Region 11959

Number of
sunspots
Size Class Magn. Class Spot Location
7 3 190 80 EAI S24E47
HMIIF
HMIBC

Solar flares on this day

C1.72

Region 11960

Number of
sunspots
Size Class Magn. Class Spot Location
1 200 50 HAX S15E49
HMIIF
HMIBC

Region 11961

Number of
sunspots
Size Class Magn. Class Spot Location
6 40 DAO S12W34
HMIIF
HMIBC

Region 11962

Number of
sunspots
Size Class Magn. Class Spot Location
3 20 CRO S37E05
HMIIF
HMIBC

All times in UTC

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Active geomagnetic conditions

Observed Kp: 4
Threshold reached: 01:33 UTC

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

Gillam, MB, Iqaluit, NU
Nuuk
Reykjavik
The strength of the interplanetary magnetic field is moderate (10.58nT), the direction is slightly South (-4.79nT).

S1 - Minor solar radiation storm

Minor impacts on HF radio through polar regions

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Latest alerts

01:45 UTC - Geomagnetic activity

Active geomagnetic conditions (Kp4) Threshold Reached: 01:32 UTC

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Tuesday, 1 April 2025
22:51 UTC - Solar flare

Moderate M2.5 flare

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Minor R1 radio blackout in progress (≥M1 - current: M1.45)


07:15 UTC - 10cm Radio Burst

Begin Time: 01/04/2025 06:45 UTC Maximum Time: 01/04/2025 06:45 UTC Duration: 1 minutes. Peak flux: 190 sfu


07:06 UTC - Solar flare

Strong M5.61 flare

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Space weather facts

Last X-flare2025/03/28X1.1
Last M-flare2025/04/01M2.4
Last geomagnetic storm2025/03/27Kp5 (G1)
Spotless days
Last spotless day2022/06/08
Monthly mean Sunspot Number
February 2025154.6 +17.6
Last 30 days128.1 -22.5

This day in history*

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*since 1994

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