Detailed Information

Solar Activity

Solar activity in the past 24 hours was active.

Seventeen solar flares consisting of thirteen C-class and four M-class flares occurred in the past 24 hours. The strongest were M9.3 flares peaked at 01:36 UT from NOAA 14455. There were no solar radio bursts, while there were ten CMEs observed during this period. The west-directed CMEs had the highest median velocity of 920 km/s and an angular width of 30°, while the east-directed CMEs had the highest median velocity of 882 km/s and an angular width of 80°. The latest SDO/HMI intensitygram data show nine active regions (NOAA 14444, 14446, 14455, 14457, 14458, 14459, 14460, 14461, and 14462), while the latest BBSO H-alpha data show seven H-alpha plages (NOAA 14445, 14448, 14449, 14450, 14451, 14454, and 14456) 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 active.

Geomagnetic Activity

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

The solar wind speed decreased from 447 km/s to 378 km/s, while the north-south component of the interplanetary magnetic field fluctuated between -6.6 nT and 2.7 nT. There was one geoeffective coronal hole at the central equator, while the others at the southeast and north pole were not geoeffective. 

An active level of geomagnetic activity is expected for the next 24 hours.

Ionospheric Activity

Ionosfer was in quite conditions on 24 hours.
There was no depression in the foF2 in the last 24 hours. There was an increment in fmin exceeding 30% of its median value for 90 minutes in the last 24 hours. There was Spread-F Event for 375 minutes in the last 24 hours. Sporadic E-layer during the day and night for 990 minutes with foEs values ​​higher than foF2 values ​​in the last 24 hours. The ionospheric scintillation index (S4) above Pontianak, had a value below 0.5 at a quite level and the maximum TEC value was 75.79 both observed above Pontianak.
The ionosphere activity is predicted to be quite for the next 24 hours.

Navigation

The error of the single frequency GPS positioning for the next 24 hours was on normal level, based on ionospheric scintillation and TEC variation.
Based on ionospheric scintillation and TEC variation, the probability of error positioning for the next 24 hours is predicted to be on normal level.

HF Radio Communication

In the last 24 hours, the Maximum Usable Frequency (MUF) Depression was at a quite level, and the Short-Wave Fadeout (SWF) was at a moderate level.
The MUF depression for the next 24 hours is predicted at a quite level, due to previous geomagnetic activity.
The SWF for the next 24 hours is predicted at a minor level due to the prediction of a solar flare.

Satellites

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

A 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.