Detailed Information

Solar Activity

Solar activity was quiet in the last 24 hours.    

No C-class, M-class, or X-class flares were observed, and consequently, no maximum flare class was recorded. Associated with this, no solar radio bursts of Type II, Type III, or Type IV were detected. Meanwhile, two coronal mass ejections were observed. One was directed to the west with a speed of 729 km/s and an angular width of 8 degrees. No eastward directed CMEs were observed.

On the visible disk, four active regions were identified by SDO HMI, namely NOAA 14378, NOAA 14381, NOAA 14384, and NOAA 14385. Additionally, four H-alpha plages were observed by BBSO, corresponding to NOAA 14379, NOAA 14380, NOAA 14382, and NOAA 14383. One farside active region is anticipated to return to the visible disk between March 05 and March 07. Looking ahead, solar activity for the next 24 hours is predicted to be eruptive, with a maximum flare class of C predicted by the Random Forest model.

Geomagnetic Activity

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

The solar wind speed increase from 353 km/s to 461 km/s. Coronal holes at north-east and equator were not geoeffective. CME on 04 March 2026 00:36 UT was mainly errupted toward north-west with speed of 1142 km/s and angular width of 16°. The CME was geoeffective and is likely to have not impact on next 24 hours.

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

Ionospheric Activity

Ionosphere was on quiet level for the last 24 hours.

There was no depression of foF2 lower than 30% of its median value. There was 165 minutes increment of fmin more than 30% of its median values. The Spread-F was detected for 315 minutes for the last 24 hours. There was 8 hours and 30 minutes Sporadic-E occurred in the night and daytime with foEs value exceeded the foF2 for several times. The S4 index values (condition of ionospheric scintillation ) was less than 0.5 and the maximum TEC index value was at 96.55, 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 the last 24 hours 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 was in quiet level and Short Wave Fadeout (SWF) was in strong level for the last 24 hours.

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 in quiet level due to the prediction of solar flare.

Satellites

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

Low level of elektron flux is expected for the next 24 hours.

The 10 MeV proton flux remained quiet over the past 24 hours. These quiet conditions are expected to persist for the next 24 hours.