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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 25 January follow. Solar flux 77 and estimated planetary A-index 12. The estimated planetary K-index at 2100 UTC on 25 January was 3. 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 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 Japan (NICT)
  K index Australia (BOM)
  Solar activity data (Solen.info)
  Space weather (spaceweather.com)
  Space weather (solarham.net)
  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)
  Aurora forecast for Europe (Tony)
  Aurora forecast for North America (Tony)

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

Forecast: A-Index & flux

45-DAY AP FORECAST 26Jan21 008 27Jan21 005 28Jan21 005 29Jan21 005 30Jan21 005 31Jan21 005 01Feb21 014 02Feb21 010 03Feb21 005 04Feb21 005 05Feb21 005 06Feb21 005 07Feb21 010 08Feb21 010 09Feb21 005 10Feb21 005 11Feb21 005 12Feb21 005 13Feb21 005 14Feb21 005 15Feb21 005 16Feb21 005 17Feb21 005 18Feb21 005 19Feb21 005 20Feb21 008 21Feb21 012 22Feb21 012 23Feb21 005 24Feb21 005 25Feb21 005 26Feb21 005 27Feb21 005 28Feb21 008 01Mar21 008 02Mar21 005 03Mar21 005 04Mar21 005 05Mar21 005 06Mar21 008 07Mar21 008 08Mar21 005 09Mar21 005 10Mar21 005 11Mar21 005 45-DAY F10.7 CM FLUX FORECAST 26Jan21 078 27Jan21 076 28Jan21 074 29Jan21 074 30Jan21 072 31Jan21 070 01Feb21 070 02Feb21 070 03Feb21 075 04Feb21 076 05Feb21 076 06Feb21 076 07Feb21 076 08Feb21 076 09Feb21 076 10Feb21 076 11Feb21 077 12Feb21 077 13Feb21 077 14Feb21 077 15Feb21 077 16Feb21 077 17Feb21 077 18Feb21 077 19Feb21 077 20Feb21 077 21Feb21 076 22Feb21 076 23Feb21 076 24Feb21 076 25Feb21 075 26Feb21 075 27Feb21 075 28Feb21 075 01Mar21 075 02Mar21 075 03Mar21 076 04Mar21 076 05Mar21 076 06Mar21 076 07Mar21 076 08Mar21 076 09Mar21 076 10Mar21 077 11Mar21 077 FORECASTER: Randall / Garfield 99999 NNNN


Source: NOAA Space Weather
Prediction Center

 

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