Detailed Information

Solar Activity

Solar activity over the past 24 hours was active. A total of six solar flares were observed, consisting of five C-class flares and one M-class flare. No X-class flares were observed. The strongest event was an M1.0 flare from NOAA 14545, which peaked at 18:48 UT. No solar radio bursts were reported in association with these events; specifically, no Type II, Type III, or Type IV radio bursts were observed. Four coronal mass ejections were detected. One CME propagated to the west at a speed of 1767 kilometers per second with an angular width of 32 degrees, while another CME was observed propagating to the east at 551 kilometers per second with an angular width of 106 degrees.

On the visible disk, SDO/HMI imagery revealed four active regions: NOAA 14545, NOAA 14547, NOAA 14548, and NOAA 14549. Additionally, one H-alpha plage, NOAA 14546, was observed by BBSO. Looking ahead, two regions are due to return from the farside between October 06 and October 08. The overall 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 decrease from 644 km/s to 337 km/s, north-south component of interplanetary magnetic field decrease from 13.9 nT to -19.6 nT Corona hole at was not geoeffective. CME on 05 October 2026 21:12 UT was mainly errupted toward north-west with speed of 1767 km/s and angular width of 32°. The CME was geoeffective and is likely to have not 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 no depression of foF2 lower than 30% of its median values.There was increment of fmin more than 30% of its median values for 30 minutes. The Spread-F occured for 195 minutes. The Sporadic E layer occured in the night and daytime for 540 minutes with foEs value exceeded the foF2 for 75 minutes. The S4 index values (condition of ionospheric scintillation) was on Moderate (S4 < 0.8) 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 Slight 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 Minor 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 Minor, based on prediction of Solar activity.

Satellites

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

The 10 MeV proton flux remained quiet over the past 24 hours. Based on these conditions, the proton flux is predicted to remain quiet for the next 24 hours.