Viewing archive of Tuesday, 4 October 2016 - Sunspot regions

Sunspot regions

Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
Sunspot number New regionsBackground fluxMaximum flux
33 10 -1B2.29B8.81

Sunspot regions

Region 12598

Number of
sunspots
Size Class Magn. Class Spot Location
10 7 120 110 CAO N13E44
HMIIF
HMIBC

Solar flares on this day

B8.29

Region 12599

Number of
sunspots
Size Class Magn. Class Spot Location
2 200 HAX S12E71
HMIIF
HMIBC

All times in UTC

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G1 - Minor geomagnetic storm

Observed Kp: 5
Threshold reached: 00:51 UTC

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

Iqaluit, NU
Nuuk
Reykjavik

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

Tórshavn
Trondheim
Sundsvall, Umeå
The solar wind speed is currently moderately high (556.9 km/sec.)
The strength of the interplanetary magnetic field is moderate (11.7nT), the direction is slightly South (-8.36nT).
The Disturbance Storm Time index predicts moderate storm conditions right now (-66nT)
The maximum X-ray flux of the past two hours is:
C5.75

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Latest alerts

01:00 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 00:51 UTC

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Friday, 4 April 2025
23:30 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 23:17 UTC

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21:03 UTC - Hemispheric Power Index

The OVATION model predicts the Hemispheric Power Index to reach 75GW at 21:49 UTC


13:15 UTC - Geomagnetic activity

Minor G1 geomagnetic storm (Kp5) Threshold Reached: 13:07 UTC

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12:33 UTC - Hemispheric Power Index

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


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This day in history*

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*since 1994

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