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Viewing archive of Friday, 4 August 2023 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum fluxCM
122 -20 -2C1.53M1.9961

Sunspot regions

Region 13380

Number of
sunspots
Size Class Magn. Class Spot Location
5 -5 250 -80 EKI S09W85
HMIIF
HMIBC

Solar flares on this day

C4.6 C3.0 C2.6

Region 13386

Number of
sunspots
Size Class Magn. Class Spot Location
5 -1 250 70 DHI N11W62
HMIIF
HMIBC

Solar flares on this day

M1.9

Region 13387

Number of
sunspots
Size Class Magn. Class Spot Location
3 -2 50 CSO N22W36
HMIIF
HMIBC

Solar flares on this day

C5.2

Region 13388

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 10 AXX S22W45
HMIIF
HMIBC

Region 13391

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 90 HSX N24W02
HMIIF
HMIBC

Region 13392

Number of
sunspots
Size Class Magn. Class Spot Location
8 1 200 40 DAO N10W06
HMIIF
HMIBC

Region 13393

Number of
sunspots
Size Class Magn. Class Spot Location
1 10 AXX N16W30
HMIIF
HMIBC

Region 13394

Number of
sunspots
Size Class Magn. Class Spot Location
4 2 160 30 CSO S23E46
HMIIF
HMIBC

Solar flares on this day

C2.5

Region 13395

Number of
sunspots
Size Class Magn. Class Spot Location
2 1 80 20 DSO N15E62
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

alert


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

Moderate M2.5 flare

alert


22:30 UTC - Radio Blackout

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

alert


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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*

Solar flares
12001X28.5
22001X2.01
32001X1.59
42014M9.35
52017M8.22
DstG
11960-272G3
21973-173G3
32001-101G1
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51994-96G3
*since 1994

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