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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 20 December follow. Solar flux 184 and estimated planetary A-index 13. The estimated planetary K-index at 0900 UTC on 21 December was 2.00. Space weather for the past 24 hours has been minor. Radio blackouts reaching the R1 level occurred. Space weather for the next 24 hours is predicted to be minor. Radio blackouts reaching the R1 level are likely.

What does this mean for AM DXers?

Web resources

Current situation:
  Space weather (SWPC)
  Space weather dashboard (SWPC)
  DST Index
(Kyoto) (see also DST FAQ by AER)
  DCX index (Oulu University)
  K index
(SWPC)
  K index Norway (Tromsø)
  K index Germany (GFZ)
  K index Australia (BOM)
  Solar activity data (Solen.info)
  Space weather (spaceweather.com)
  Space weather (solarham.net)
  Auroras and Space weather Finland (FMI)
  Space weather Canada (NRCan)
  GOES proton flux (SWPC)

Forecasts:
  3-day forecast (SWPC)
  27-day forecast (SWPC)
  45-day forecast (USAF)
  Space weather forecast (Japan)

Long-term data (solar cycle history):
  Solar cycle progression (SWPC)
  Solar cycle sunspots (SIDC)

Forecast: A-Index & flux

45-DAY AP FORECAST 21Dec24 008 22Dec24 005 23Dec24 008 24Dec24 008 25Dec24 005 26Dec24 005 27Dec24 005 28Dec24 005 29Dec24 005 30Dec24 005 31Dec24 005 01Jan25 005 02Jan25 005 03Jan25 005 04Jan25 005 05Jan25 015 06Jan25 008 07Jan25 005 08Jan25 005 09Jan25 005 10Jan25 012 11Jan25 010 12Jan25 008 13Jan25 005 14Jan25 005 15Jan25 005 16Jan25 005 17Jan25 005 18Jan25 005 19Jan25 005 20Jan25 005 21Jan25 005 22Jan25 005 23Jan25 005 24Jan25 005 25Jan25 005 26Jan25 005 27Jan25 005 28Jan25 005 29Jan25 005 30Jan25 005 31Jan25 005 01Feb25 015 02Feb25 008 03Feb25 005 45-DAY F10.7 CM FLUX FORECAST 21Dec24 180 22Dec24 175 23Dec24 175 24Dec24 175 25Dec24 175 26Dec24 175 27Dec24 175 28Dec24 170 29Dec24 185 30Dec24 180 31Dec24 180 01Jan25 180 02Jan25 180 03Jan25 175 04Jan25 175 05Jan25 170 06Jan25 170 07Jan25 160 08Jan25 160 09Jan25 165 10Jan25 170 11Jan25 165 12Jan25 170 13Jan25 165 14Jan25 165 15Jan25 170 16Jan25 170 17Jan25 175 18Jan25 175 19Jan25 180 20Jan25 180 21Jan25 180 22Jan25 180 23Jan25 180 24Jan25 185 25Jan25 185 26Jan25 180 27Jan25 180 28Jan25 180 29Jan25 180 30Jan25 175 31Jan25 175 01Feb25 170 02Feb25 170 03Feb25 160 FORECASTER: REILLY / KISER 99999 NNNN


Source: NOAA Space Weather
Prediction Center

 

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