Detailed Information

Solar Activity

Solar activity was Eruptif in the last 24 hours.

There were 9 flares with all of them are C-class flares in the last 24 hours. The maximum flare class was C2.3 from NOAA4286 peaked at 10:04UT.
There were 2 solar radioburst all of which are type-III occurred in the last 24 hours.
There was 1 CME event in the last 24 hours. The southhwest-directed CME has the highest median velocity of 1041 km/s with an angular width of 56° and no east-directed CME are observed.
The latest SDO/HMI Intensitygram data shows 4 active regions (NOAA4284,4285,4287,4288) and the latest BBSO H-Alpha data shows 4 H-Alpha plages (NOAA4279,4280,4283,4286).
Based on farside data shows no active region is going to appear from the east limb of the Solar disk in the next 24 hours.

Based on today's condition,
Solar activity for 21 November 2025, 04:00 UT - 22 November 2025, 03.59 UT is predicted to be active.
Solar activity for 22 November 2025, 04:00 UT - 23 November 2025, 03.59 UT is predicted to be eruptive.
Solar activity for 23 November 2025, 04:00 UT - 24 November 2025, 03.59 UTis predicted to be eruptive.

Geomagnetic Activity

The geomagnetic activity was on active level for the last 24 hours.
The solar wind speed increase from 334 km/s and 421 km/s, north-south component of interplanetary magnetic field fluctuate between -5.5 nT and 8.1 nT. There were geoeffective coronal holes at central equator and south-west, while the others at north-west, eastern equator, south-east and north-east were not geoeffective.

Active level geomagnetic activity is expected for the next 24 hours.
Quiet level geomagnetic activity is expected for 22 November 2025 07UT - 23 November 2025 07UT.
Quiet level geomagnetic activity is expected for 23 November 2025 07UT - 24 November 2025 07UT.

Ionospheric Activity

Ionosphere cannot be evaluated the last 24 hours.

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 on a quiet level (S4<0.5), and the maximum TEC index value was at 72.82, both over Pontianak.

The ionosphere activity is predicted to be minor level on November 21st, 04:00 UT - November 22th, 03:59 UT.

The ionosphere activity is predicted to be quiet level on November 22th, 04:00 UT - November 23th, 03:59 UT.

The ionosphere activity is predicted to be quiet level on November 23th, 04:00 UT - November 24th, 03:59 UT.

Navigation

The error of the single frequency GPS positioning for the last 24 hours was on normal level, based on ionospheric scintilation and TEC variation.

Based on ionospheric scintilation and TEC variation, the probability of error positioning for November 21st, 04:00 UT - November 22th, 03:59 UT is predicted to be on normal level.

Based on ionospheric scintilation and TEC variation, the probability of error positioning for November 22th, 04:00 UT - November 23th, 03:59 UT is predicted to be on normal level.

Based on ionospheric scintilation and TEC variation, the probability of error positioning for November 23th, 04:00 UT - November 24th, 03:59 UT is predicted to be on normal level.

HF Radio Communication

MUF depression and Short Wave Fadeout (SWF) cannot be evaluated for the last 24 hours.

The MUF depression for November 21st, 04:00 UT - November 22th, 03:59 UT is predicted at a minor level, due to previous geomagnetic activity.

The MUF depression for November 22th, 04:00 UT - November 23th, 03:59 UT is predicted at a quiet level, due to predicted geomagnetic activity.

The MUF depression for November 23th, 04:00 UT - November 24th, 03:59 UT is predicted at a quiet level, due to predicted geomagnetic activity.

 

The SWF for November 21st, 04:00 UT - November 22th, 03:59 UT is predicted at a minor level due to the  prediction of a solar flare.

The SWF for November 22th, 04:00 UT - November 23th, 03:59 UT is predicted at a quiet level due to the prediction of a solar flare.

The SWF for November 23th, 04:00 UT - November 24th, 03:59 UT is predicted at a quiet level due to the prediction of a solar flare.

Satellites

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

High level of electron flux is expected for the next 24 hours.
Low level of electron flux is expected for 22 November 2025 07UT - 23 November 2025 07UT
Low level of electron flux is expected for 23 November 2025 07UT - 24 November 2025 07UT

The flux of high-energy protons was quiet proton event for the last 24 hours.

Based on today's conditions,
The flux of high-energy protons for 21 November 2025, 04:00 UT - 22 November 2025, 03.59 UT is predicted to be quiet.
The flux of high-energy protons for 122 November 2025, 04:00 UT - 23 November 2025, 03.59 UT is predicted to be quiet.
The flux of high-energy protons for 23 November 2025, 04:00 UT - 24 November 2025, 03.59 UTis predicted to be quiet.