Detailed Information

Solar Activity

Solar activity over the past 24 hours was eruptive.

There were 7 C-class solar flares observed, with the most significant event was a C7.8 flare originating from NOAA 14387, peaking at 20:38UT. Associated with this activity, one Type III solar radio burst was detected, while no Type II or Type IV radio bursts were observed. Furthermore, no coronal mass ejections were observed during this period. On the visible disk, 5 active regions were identified by SDO/HMI: NOAA 14378, NOAA 14381, NOAA 14384, NOAA 14387, and NOAA 14388. Additionally, BBSO H-Alpha observations revealed 3 plages: NOAA 14379, NOAA 14380, and NOAA 14385. No farside regions were observed returning to the visible disk.

Solar activity for the next 24 hours is predicted to be eruptive.
 

Geomagnetic Activity

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

The solar wind speed increase from 400 km/s and 533 km/s, north-south component of interplanetary magnetic field fluctuate between -4.8 nT and 5.0 nT. Coronal holes at eastern equator, north-west, south pole and south-east were not geoeffective. CME on 10 March 2026 15:12 UT was mainly errupted toward south-west with speed of 297 km/s and angular width of 6°. 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

Ionosfer was in quiet conditions on 24 hours.
There was no depression in the foF2 the median in the last 24 hours. There was an increment in fmin exceeding 30% of its median value for 75 minutes in the last 24 hours. There was a Spread-F Event for 555 minutes in the last 24 hours. Sporadic E-layer during the day and night for 405 minutes with foEs values ​​higher than foF2 values ​​in the last 24 hours. The ionospheric scintillation index (S4) above Pontianak, had a value lower than 0.8 at a moderate level and the maximum TEC value was 86.42 both observed above Pontianak.
The ionosphere activity is predicted to be minor for the next 24 hours.

Navigation

The error of the single frequency GPS positioning for the next 24 hours was on slight level, based on ionospheric scintillation and TEC variation.
Based on ionospheric scintillation and TEC variation, the probability of error positioning for the next 24 hours is predicted to be on slight level.

HF Radio Communication

In the last 24 hours, the Maximum Usable Frequency (MUF) Depression was at a quite level, and the Short-Wave Fadeout (SWF) was at a moderate level.
The MUF depression for the next 24 hours is predicted at a minor level, due to previous geomagnetic activity.
The SWF for the next 24 hours is predicted at a quite level due to the prediction of a solar flare.

Satellites

The electron flux was on high level for the last 24 hours.
Low level of electron flux is expected for the next 24 hours.

The high energy protons flux remained quiet over the past 24 hours.
Based on these conditions, the high energy protons flux is predicted to be quiet for the next 24 hours.