SPACE WEATHER INFORMATION AND FORECAST SERVICES

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

Space Weather forecast is not available from June 23, 2017 through July 03, 2017 due to Eid Mubarak holiday. We are sorry for this inconvenience. Forecast will resume on July 03, 2017.

2017 Jun 22

Geomagnet

Quiet

Ionosphere

Minor

Forecast

Geomagnet

Quiet

Ionosphere

Quiet

Issued : 2017 June 22 0800 UTC
Forecast Valid For 24 Hours

Detailed Information

Solar Activity

Solar activity is currently on quiet level. Only one B-flare events from NOAA2664 detected in the last 24 hours. Today observaton shows three active region named NOAA 2662, 2663, and 2664. All regions have simple magnetic configuration. Farside observations from STEREO EUVI/AIA195 reveals no active region that will appear in the next 24 hours. Also, no CME events were detected in the last 24 hours.

The solar activity for June, 22 2017 begin at 08:00 UT is predicted to be quiet, valid for 24 hours.

Geomagnetic Activity

Geomagnetic activity  was in quiet level.  

Today's geomagnetic activity was on quiet level. Solar wind speed was around 320 km/s to 350 km/s. IMF was varied between -6 to 1 nT. Today's geoeffective coronal hole was at northern , while the one at northeastern was not.  Substorms in last 24 hours was occurred on June, 21st 2017 at 14 UT with intensity less than 500 nT and still on going.

Quiet level is expected in the next 24 hours.

Ionosphere Activity

Ionosphere was in minor conditions for the last 24 hours.

There was depression of foF2 lower than 30% from its median values with duration up to 1.5 hours. There was no increment of fmin more than 30% from it's median values, also. The Spread-F event occurred during midnight at Biak. The Sporadic-E occurred on daytime with foEs value was above the foF2 values on day time and nighttime. W-index mean value was -2. Ionospheric scintillations for the last 24 hours was quiet over Bandung and Biak with S4 index value less than 0.25.

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

Navigation

The error positioning was slight with W-index value was -2 for the last 24 hours.

The probability of error positioning for the next 24 hours is slight during daytime and nighttime based on W-index prediction value is going to be -2.

HF Radio Communication

MUF depression were in moderate condition and Short Wave Fadeout (SWF) was in quiet condition for the last 24 hours.

  • 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 prediction of solar flare activities.

Satellites

The flux of high energy proton was far below the threshold so that the activity level is quiet. The flux of high energy proton for June 16, 2017 begin at 08:00 UT is predicted to be quiet, valid for 24 hours.

The Electron flux was around 1 [/cm2/sec/sr] or in low level. Low electron flux is expected in the next 24 hours.