SPACE WEATHER INFORMATION AND FORECAST SERVICES

Space Science Center
National Institute of Aeronautics and Space
LAPAN - Indonesia

2018 Jan 16

Geomagnet

Quiet

Ionosphere

Quiet

Forecast

Geomagnet

Quiet

Ionosphere

Quiet

Issued : 2018 January 16 0800 UTC
Forecast Valid For 24 Hours

Detailed Information

Solar Activity

Solar activity is currently on the quiet level. There was no flare, CME, nor radio burst occurred in the last 24 hours. Today's observation from SDO HMI Intensitigram shows one new region NOAA2696, having relatively simple magnetic configuration. No new active regions will appear from the east solar limb in the next 24 hours based on STEREO EUVI/AIA195 observations.

Based on today's condition, the solar activity is predicted to remain on the quiet level, valid for the next 24 hours.

Geomagnetic Activity

Geomagnetic activities was in the quiet level.

Today's geomagnetic activity was in the quiet level. Solar wind speed was decreased from 510 km/s to 450 km/s. IMF was varied between -4 to 4 nT. There was no geoeffective coronal holes. The last substorm during 24 hours ago occurred on 15th January 2018 at 14 UT with intensity less than 500 nT for 6 hours. 

Quiet level is expected for the next 24 hours.    

Ionosphere Activity

Ionosphere was in quiet condition.

There was no depression of foF2 lower than 30% from its median values. There was no increment of fmin more than 30% of its median values. There was a  Spread-F for 15 minutes and followed by the Sporadic-E with foEs values above the foF2 values. The W-index mean value was ±1. Ionospheric scintillation S4 index over Bandung was less than 0.25. 

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

Navigation

The error positioning was normal based on the W-index value.

The probability of error positioning for the next 24 hours is normal during daytime and nighttime due to solar and geomagnetic activities.

HF Radio Communication

MUF depression was in quiet condition and Short Wave Fadeout (SWF) was in quiet condition.

  • The probability of MUF depression for the next 24 hours is quiet due to previous and prediction of geomagnetic activity.
  • The probability of SWF for the next 24 hours is quiet due to the prediction of solar flare activities.

Satellites

Today's electron flux was around 100 [particle/cm2/sec/sr] or in low level. Low electron flux is expected for the next 24 hours.

Within the last 24 hours, the flux of high-energy proton is in quiet level due to low solar activity. The flux of high-energy proton is predicted to remain on quiet level, valid for the next 24 hours.