SPACE WEATHER INFORMATION AND FORECAST SERVICES

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

Today

Geomagnet

Quiet

Ionosphere

Moderate

Forecast

Geomagnet

Quiet

Ionosphere

Minor

Issued : 2019 November 18 0800 UTC
Forecast Valid For 24 Hours

ESSENTIAL INFORMATION FOR SPACE WEATHER COMMUNITIES

HF Radio Communication

MUF Depression

Shortwave Fadeout / Radio Blackout

Application

NAVIGATION

Error Positioning

SATELLITES

High Energy Proton

High Energy Electron

Detailed Information

Solar Activity

Solar activity was quiet for November 15th 08:00 UT - November 18th 07:59 UT. Neither flare, solar radio burst nor CME occurred in the last 24 hours. Based on the latest observation by SDO Intensitygram, shows H-Alpha plage (NOAA 12752).  Stereo EUVI/AIA 195 observation shows no new active region to appear from the east limb of the Solar disk in the next 24 hours.

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

Geomagnetic Activity

The geomagnetic activity was on quiet level for November 15th 08:00 UT - November 18th 07:59 UT.
The solar wind speed decreased from 480 km/s to 360 km/s. North-south component of interplanetary magnetic field fluctuated from -3 to 4 nT. There was geoeffective coronal hole at central equator, while the others at north pole and south pole were not.

Quiet level is expected on the next 24 hours

Ionospheric Activity

Ionosphere was in disturbed on minor level for November 15th, 08:00 UT - November 16th, 07:59 UT.

Ionosphere was in quiet level for November 16th, 08:00 UT - November 17th, 07:59 UT.

Ionosphere was in disturbed on moderate level for November 17th, 08:00 UT - November 18th, 07:59 UT.

There was depression of foF2 lower than 30% of its median value for 120 minutes on November 15th, 08:00 UT - November 16th, 07:59 UT.

There was no depression of foF2 lower than 30% of its median value on November 16th, 08:00 UT - November 17th, 07:59 UT.

There was depression of foF2 lower than 30% of its median value for 285 minutes on November 17th, 08:00 UT - November 18th, 07:59 UT.

There was increment of fmin more than 30% of its median values for 135, 75 and 165 minutes. The Spread-F occurred for 165 minutes on November 15th, 08:00 UT - November 16th, 07:59 UT. The Sporadic-E occurred in the night and daytime with foEs value exceeded the foF2 for 705, 660 and 840 minutes. The W-index mean value was 1, -1 and -1. The S4 index values (condition of ionospheric scintillation ) was less than 0.5 over Bandung.

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

 

Navigation

Based on W-index, the error of the single frequency GPS positioning for November 15th, 08:00 UT - November 18th, 07:59 UT was in normal level.

Based on the prediction of W-index = 1, the probability of error positioning for the next 24 hours is predicted on normal level.

 

HF Radio Communication

MUF depression was in moderate level for November 15th, 08:00 UT - November 16th, 07:59 UT

MUF depression was in quiet levelfor November 16th, 08:00 UT - November 17th, 07:59 UT.

MUF depression was in strong levelfor November 17th, 08:00 UT - November 18th, 07:59 UT.

Short Wave Fadeout (SWF) was in strong level for November 15th, 08:00 UT - November 16th, 07:59 UT.

Short Wave Fadeout (SWF) was in moderate level for November 16th, 08:00 UT - November 17th, 07:59 UT.

Short Wave Fadeout (SWF) was in strong level for November 17th, 08:00 UT - November 18th, 07:59 UT.

 

The MUF depressi for the next 24 hours is predicted on Minor level, based on LAPAN Time Series method.

The SWF on July 13th, 08:00 UT - July 14th, 07:59 UT is predicted in Quiet level due to the prediction of solar flare.

Satellites

The maximum value of electron flux less than 1000 particles/cm2.sec.sr in low level for November 15th 08:00 UT - November 18th 07:59 UT.

Low level electron flux is expected on the next 24 hours

The flux of high-energy proton was in quiet for November 15th 08:00 UT - November 18th 07:59 UT. 

Based on today's condition, the flux of high-energy proton for the next 24 hours is predicted to be quiet.