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Radio Propagation

Solar-terrestrial indices

Indices from the U.S. NOAA Space Weather Prediction Center in Boulder Colorado, updated every three hours and published here in real time:

Solar-terrestrial indices for 13 October follow. Solar flux 71 and mid-latitude A-index 10. The mid-latitude K-index at 0000 UTC on 14 October was 2 (13 nT). No space weather storms were observed for the past 24 hours. No space weather storms are expected for the next 24 hours.

What does this mean for DXers?

Forecast: A-Index & flux

45-DAY AP FORECAST 14OCT08 008 15OCT08 005 16OCT08 005 17OCT08 005 18OCT08 005 19OCT08 005 20OCT08 005 21OCT08 005 22OCT08 005 23OCT08 005 24OCT08 005 25OCT08 005 26OCT08 005 27OCT08 008 28OCT08 015 29OCT08 012 30OCT08 010 31OCT08 010 01NOV08 005 02NOV08 005 03NOV08 005 04NOV08 005 05NOV08 005 06NOV08 005 07NOV08 005 08NOV08 015 09NOV08 010 10NOV08 005 11NOV08 005 12NOV08 005 13NOV08 005 14NOV08 005 15NOV08 005 16NOV08 005 17NOV08 005 18NOV08 005 19NOV08 005 20NOV08 005 21NOV08 005 22NOV08 005 23NOV08 008 24NOV08 015 25NOV08 012 26NOV08 010 27NOV08 010 45-DAY F10.7 CM FLUX FORECAST 14OCT08 072 15OCT08 073 16OCT08 075 17OCT08 075 18OCT08 075 19OCT08 075 20OCT08 075 21OCT08 067 22OCT08 067 23OCT08 067 24OCT08 067 25OCT08 067 26OCT08 067 27OCT08 067 28OCT08 067 29OCT08 067 30OCT08 067 31OCT08 067 01NOV08 067 02NOV08 067 03NOV08 067 04NOV08 067 05NOV08 067 06NOV08 067 07NOV08 068 08NOV08 068 09NOV08 068 10NOV08 068 11NOV08 068 12NOV08 068 13NOV08 067 14NOV08 067 15NOV08 067 16NOV08 067 17NOV08 067 18NOV08 067 19NOV08 067 20NOV08 067 21NOV08 067 22NOV08 067 23NOV08 067 24NOV08 067 25NOV08 067 26NOV08 067 27NOV08 067


Source: NOAA Space Weather
Prediction Center

Auroral activity

Northern hemisphere
Southern hemisphere
 

Web resources

Current situation:
  Space weather now (SEC)
  Today's space weather (SEC)
  Solarsoft latest events (LMSAL)
  Magnetic disturbance level in Nurmijärvi and Sodankylä in Finland (FMI)

Forecasts:
  Solar forecast (SEC)
  Solar forecast (SIDC)
  Geomagnetic summary and forecast (IPS)

Short-term data:
  Kp-index data (past 3 days, SEC)
  Proton event data (3 days, SEC)
  K and A indices in Australia (past 7 days, IPS)
  Solarsoft latest events (past 3 days, LMSAL)
  Last 25 WWV reports (DXSummit)

Medium-term data:
  Solar Terrestrial activity report (past 60 days, DXLC)
  Daily planetary A-index (past 30 days, IPS Australia)
  DST index (current and past months)

Long-term data (solar cycle history):
  Solar cycle sunspots (SEC)
  Solar cycle sunspots (SIDC)
  Solar cycle sunspots (DXLC)
  Solar cycle solar flux (SEC)
  Solar cycle Ap-Index (SEC)

General information:
  Primer on Space Weather (SEC)
  Geophysical Alert Description (SEC)
  Codes, terminology and classifications (SIDC Belgium)

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