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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 03 February follow. Solar flux 111 and estimated planetary A-index 6. The estimated planetary K-index at 0600 UTC on 04 February was 2. No space weather storms were observed for the past 24 hours. No space weather storms are predicted for the next 24 hours.

What does this mean for DXers?

Forecast: A-Index & flux

45-DAY AP FORECAST 04Feb12 005 05Feb12 005 06Feb12 005 07Feb12 005 08Feb12 005 09Feb12 005 10Feb12 006 11Feb12 005 12Feb12 005 13Feb12 005 14Feb12 005 15Feb12 005 16Feb12 005 17Feb12 005 18Feb12 005 19Feb12 005 20Feb12 005 21Feb12 005 22Feb12 005 23Feb12 005 24Feb12 008 25Feb12 005 26Feb12 005 27Feb12 005 28Feb12 005 29Feb12 005 01Mar12 005 02Mar12 005 03Mar12 005 04Mar12 005 05Mar12 005 06Mar12 008 07Mar12 008 08Mar12 005 09Mar12 005 10Mar12 008 11Mar12 008 12Mar12 005 13Mar12 005 14Mar12 005 15Mar12 005 16Mar12 005 17Mar12 005 18Mar12 005 19Mar12 005 45-DAY F10.7 CM FLUX FORECAST 04Feb12 110 05Feb12 110 06Feb12 105 07Feb12 105 08Feb12 110 09Feb12 115 10Feb12 120 11Feb12 115 12Feb12 155 13Feb12 155 14Feb12 150 15Feb12 150 16Feb12 150 17Feb12 150 18Feb12 150 19Feb12 150 20Feb12 145 21Feb12 145 22Feb12 145 23Feb12 145 24Feb12 140 25Feb12 140 26Feb12 135 27Feb12 135 28Feb12 135 29Feb12 135 01Mar12 140 02Mar12 140 03Mar12 140 04Mar12 140 05Mar12 140 06Mar12 140 07Mar12 145 08Mar12 150 09Mar12 155 10Mar12 155 11Mar12 155 12Mar12 150 13Mar12 150 14Mar12 150 15Mar12 150 16Mar12 150 17Mar12 150 18Mar12 145 19Mar12 145


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)
  DST Index and AL Index
(LASP Colorado)
  DST Index
(Kyoto)

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

Short and medium term data:
  Daily solar data (past 30 days, SWPC)
  Daily geomagnetic data (past 30 days, SWPC)
  Proton flux (3 days, SWPC)
  K and A indices in Australia (past 7 days, IPS)
  Solar Terrestrial activity report (past 60 days, DXLC)

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

General information:
  Primer on Space Weather (SEC)
  Geophysical Alert Description (LWCA)

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