Detailed Information

Solar Activity

Solar activity was eruptive over the past 24 hours.

Three C-class flares were observed, with no M-class or X-class flares. The most energetic event was a C2.2 flare that peaked at 17:34 UT from an unknown region. No solar radio activity was reported in the past 24 hours. No coronal mass ejections (CMEs) were observed. On the visible solar disk, SDO/HMI identified four active regions: NOAA 14564, NOAA 14565, NOAA 14566, and NOAA 14567. BBSO reported one H-alpha plage associated with NOAA 14562. Two far-side active regions are expected to rotate onto the solar disk edge between 05 November and 07 November.

For the next 24 hours, solar activity is predicted to remain active.

Geomagnetic Activity

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

The solar wind speed was stable around 357 km/s; the north-south component of the interplanetary magnetic field fluctuated between -5.7 nT and 4.4 nT. The coronal hole was not geoeffective.

Quiet-level geomagnetic activity is expected for the next 24 hours.

Ionospheric Activity

Ionosphere was in Quiet level for the last 24 hours.

There was a depression of foF2 below 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 occurred for 225 minutes. The Sporadic E layer occurred at night and daytime for 435 minutes, with foEs values exceeding 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 were at a quiet (VTEC < 125) level over the 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 has been at the Normal level.

The probability of positioning error 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 conditions, and the SWF (Shortwave Fadeout) was in Moderate conditions for the last 24 hours.

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

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

Satellites

The electron flux was at a high level for the last 24 hours.

Electron flux is expected to remain low for the next 24 hours.

The 10 MeV proton flux was at quiet levels over the past 24 hours.

These quiet conditions are expected to continue over the next 24 hours.