Detailed Information

Solar Activity

Solar activity in the last 24 hours was eruptive.

A total of 6 C-class solar flares were observed, with no M-class or X-class flares. The maximum flare observed was a C5.3 flare, peaking at 00:45UT from an UNKNOWN REGION. No solar radio bursts were reported. Three Coronal Mass Ejections (CMEs) were detected. One east-directed CME had a speed of 348 km/s and an angular width of 22 degrees. No west-directed CMEs were reported. No active regions were observed via SDO/HMI. Two H-alpha plages, NOAA 14376 and NOAA 14377, were observed via BBSO. There are no farside regions expected to return from the east limb.

The overall solar activity for the next 24 hours is predicted to be eruptive, with no-flare activity predicted by the Random Forest model.

Geomagnetic Activity

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


The solar wind speed fluctuate between 583 km/s and 756 km/s, north-south component of interplanetary magnetic field fluctuate between -6.2 nT and 4.3 nT There was geoeffective coronal hole at western equator, while the others at south-east, central equator and south-west were not geoeffective.

 

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

Ionospheric Activity

Ionosphere was in Quiet conditions for the last 24 hours.

There was no depression of foF2 lower than 30% of its median value for last 24 hours. There was no increment of fmin more than 30% of its median value for the last 24 hours. There was no The Spread-F occurred For the last 24 hours. There was The Sporadic-E occurred in the night and daytime for 675 minutes with foEs value exceeded the foF2 for last 24 hours.

S4 index values (condition of ionospheric scintillation ) was less than 0.5 over Pontianak is predicted Quite Level

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

 

Navigation

Based on TEC and scintilation , the error of the single frequency GPS positioning for the last 24 hours was in Normal level.

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

HF Radio Communication

MUF depression was in Quiet condition and Short Wave Fadeout (SWF) was in Quiet for the last 24 hours.

The MUF depression for next 24 hours is predicted on Quiet level, due to previous of geomagnetic activity/ based onGeomagnet activity.

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

Satellites

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

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

The proton flux condition in the last 24 hours was quiet.

The proton flux is predicted to remain quiet for the next 24 hours, based on the conditions observed in the last 24 hours.