Detailed Information

Solar Activity

Solar activity in the past 24 hours was eruptive.

There were six C-class flares that occurred in the past 24 hours. The strongest was a C4.1 flare, which peaked at 03:03 UT from active region NOAA 14384. No solar radio bursts occurred. Three CMEs were observed during this period. The east-directed CMEs had the highest median velocity of 727 km/s and an angular width of 80°, while the west-directed CMEs had the highest median velocity of 1151 km/s and an angular width of 18°. The latest SDO/HMI intensitygram data show four active regions (NOAA 14378, 14381, 14383, and 14384), while the latest BBSO H-alpha data show three H-alpha plages (NOAA 14379, 14380, and 14382) on the solar disk. The GONG Calibrated Farside Map indicates that no new active regions are expected to appear on the solar limb in the next 24 hours.

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

Geomagnetic Activity

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


The solar wind speed fluctuate between 307 km/s and 395 km/s, north-south component of interplanetary magnetic field fluctuate between -8.8 nT and 8.2 nT Coronal holes at south-west, north-east and eastern equator 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 increment of fmin more than 30% of its median value for 90 menits for the last 24 hours. There was The Spread-F occurred For 330 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 Moderate for the last 24 hours.

The MUF depression for next 24 hours is predicted on Quiet level, due to previous of geomagnetic 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 high level for the last 24 hours.

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

The flux of high-energy protons in the past 24 hours was quiet.

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