Detailed Information

Solar Activity

Solar activity in the past 24 hours was eruptive.

Two C-class flares occurred in the past 24 hours. The strongest was a C6.9 flare peaked at 02:21 UT from NOAA 14549. No solar radio bursts detected, but there were two CMEs recorded during this period. Among the west-directed CMEs, the event with the highest median velocity recorded 1329 km/s with an angular width of 14°. There was no east-directed CMEs recorded. The latest SDO/HMI intensitygram data show seven active regions (NOAA 14548, 14549, 14551, 14554, 14555, 14556, and 14557), while the latest BBSO H-alpha data show two H-alpha plages (NOAA 14452 and 14553) on the solar disk. One active regions are due to return from the farside between 14 and 16 October.

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

Geomagnetic Activity

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

The solar wind speed increase from 445 km/s and 542 km/s, north-south component of interplanetary magnetic field fluctuate between -6.6 nT and 14.8 nT Corona hole at was not geoeffective. CME on 13 October 2026 11:24 UT was mainly errupted toward north-west with speed of 946 km/s and angular width of 6°. The CME was geoeffective and is likely to have impact on next 24 hours.

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

Ionospheric Activity

Ionosphere was in Quiet level for the last 24 hours.

There was depression of foF2 lower than 30% of its median values for 15 minutes.There was increment of fmin more than 30% of its median values for 90 minutes. The Spread-F did not occur for the last 24 hours. The Sporadic E layer occured in the night and daytime for 405 minutes with foEs value exceeded the foF2 for 75 minutes. The S4 index values (condition of ionospheric scintillation) was on Quiet (S4 < 0.5) level last 24 hours over Agam. The TEC values was on Quiet (VTEC < 125) level last 24 hours over Agam.

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

Navigation

For the last 24 hours, the error of the single frequency GPS positioning was on Normal level.

The probability of error positioning for the next 24 hours is predicted to be Normal, based on scintillation and TEC variations.

HF Radio Communication

The MUF(Maximum Usable Frequency) depression was in Quiet condition and the SWF (Short Wave Fadeout) was in Moderate for the last 24 hours.

The MUF depression for the next 24 hours is predicted to be Quiet, based on prediction of geomagnetic activity.

The SWF for the next 24 hours is predicted to be Quiet, based on prediction of Solar activity.

Satellites

The electron flux was on low 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.