Detailed Information

Solar Activity

Solar activity was eruptive for February 6th, 2025 04.00 UT - February 7th, 2026 03.59 UT.
Solar activity was eruptive for February 7th, 2026 04.00 UT - February 8th, 2026 03.59 UT.
Solar activity was active for February 8th, 2026 04.00 UT - February 9th, 2026 03.59 UT.

There were 13 flares with 9 C-class flares and 4 M-class flares in the last 24 hours. The maximum flare class was M2.8 from NOAA 4366 peaked at 02:27 UT. There was no solar radioburst occured in the last 24 hours. There was 6 CME event in the last 24 hours. The east-directed CME has the highest median velocity of 1736 km/s with an angular width of 6 degrees and the west-directed CME has the highest median velocity of 1213 km/s with an angular width of 10 degrees. The latest SDO/HMI Intensitygram data shows 8 active regions (NOAA 4362, 4363, 4366, 4367, 4368, 4369, 4371, and 4373) and the latest BBSO H-Alpha data shows 1 H-Alpha plages (NOAA 4370). Based on farside data shows 3 regions due to return 09 Feb to 11 Feb from the east limb of the Solar disk.

Based on today's condition, solar activity for the next 24 hours is predicted to be active.

Geomagnetic Activity

The geomagnetic activity was at active level on 06 February 2026 07UT - 07 February 2026 07UT.

The geomagnetic activity was at active level on 07 February 2026 07UT - 08 February 2026 07UT.

The geomagnetic activity was on quiet level for the last 24 hours.

 

The solar wind speed decrease from 573 km/s to 396 km/s, north-south component of interplanetary magnetic field fluctuate between -6.9 nT and 6.0 nT There were geoeffective coronal holes at north pole and central equator, while the others at eastern equator and south-east were not geoeffective. CME on 08 February 2026 22:12 UT was mainly errupted toward west with speed of 1213 km/s and angular width of 10°. The CME was geoeffective and is likely to have not impact on next 24 hours.

Active level geomagnetic activity is expected for the next 24 hours.

 

 

 

 

Ionospheric Activity

Ionosphere cannot be evaluated for February 6th, 2025 04.00 UT - February 7th, 2026 03.59 UT.
Ionosphere cannot be evaluated for February 7th, 2026 04.00 UT - February 8th, 2026 03.59 UT.
Ionosphere cannot be evaluated for February 8th, 2026 04.00 UT - February 9th, 2026 03.59 UT.

The ionospheric activity for the last 24 hours cannot be evaluated due to problems with the CADI station. The S4 index values (condition of ionospheric scintillation) was lower than 0.5 and the maximum TEC index value was at 75.03, both over Pontianak.

The ionosphere activity for the next 24 hours is predicted to be quiet. 

Navigation

The error of the single frequency GPS positioning for February 6th, 2025 04.00 UT - February 7th, 2026 03.59 UT was in normal level, based on ionospheric scintilation and TEC variation.
The error of the single frequency GPS positioning for February 7th, 2026 04.00 UT - February 8th, 2026 03.59 UT was in normal level, based on ionospheric scintilation and TEC variation.
The error of the single frequency GPS positioning for February 8th, 2026 04.00 UT - February 9th, 2026 03.59 UT was in normal level, based on ionospheric scintilation and TEC variation.

Based on ionospheric scintilation and TEC variation, the probability of error positioning for the next 24 hours is predicted at a normal level.

HF Radio Communication

MUF depression and Short Wave Fadeout (SWF) cannot be evaluated for February 6th, 2025 04.00 UT - February 7th, 2026 03.59 UT.
MUF depression and Short Wave Fadeout (SWF) cannot be evaluated for February 7th, 2026 04.00 UT - February 8th, 2026 03.59 UT.
MUF depression and Short Wave Fadeout (SWF) cannot be evaluated for February 8th, 2026 04.00 UT - February 9th, 2026 03.59 UT.

The MUF depression for the next 24 hours is predicted on quiet level, due to previous of geomagnetic activity.

The SWF for the next 24 hours is predicted on minor level due to the prediction of solar flare.

Satellites

The electron flux was at low level on 06 February 2026 07UT - 07 February 2026 07UT.

The electron flux was at high level on 07 February 2026 07UT - 08 February 2026 07UT.

The electron flux was on high level for the last 24 hours.

High level of electron flux is expected for the next 24 hours.

The flux of high-energy protons was quiet for February 6th, 2025 04.00 UT - February 7th, 2026 03.59 UT.
The flux of high-energy protons was quiet for February 7th, 2026 04.00 UT - February 8th, 2026 03.59 UT.
The flux of high-energy protons was quiet for February 8th, 2026 04.00 UT - February 9th, 2026 03.59 UT.

Based on today's conditon, the flux of high energy proton for the next 24 hours is predicted to be quiet.