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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 09 May follow. Solar flux 67 and estimated mid-latitude A-Index 3. The mid-latitude K-index at 2100 UTC on 09 May was 1 (9 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 10MAY08 005 11MAY08 005 12MAY08 005 13MAY08 012 14MAY08 008 15MAY08 005 16MAY08 005 17MAY08 005 18MAY08 005 19MAY08 010 20MAY08 025 21MAY08 015 22MAY08 008 23MAY08 005 24MAY08 005 25MAY08 005 26MAY08 005 27MAY08 010 28MAY08 010 29MAY08 012 30MAY08 012 31MAY08 010 01JUN08 010 02JUN08 010 03JUN08 008 04JUN08 005 05JUN08 005 06JUN08 005 07JUN08 005 08JUN08 005 09JUN08 008 10JUN08 005 11JUN08 005 12JUN08 005 13JUN08 005 14JUN08 005 15JUN08 010 16JUN08 015 17JUN08 012 18JUN08 008 19JUN08 005 20JUN08 005 21JUN08 005 22JUN08 005 23JUN08 012 45-DAY F10.7 CM FLUX FORECAST 10MAY08 068 11MAY08 070 12MAY08 070 13MAY08 070 14MAY08 070 15MAY08 070 16MAY08 070 17MAY08 070 18MAY08 070 19MAY08 070 20MAY08 070 21MAY08 070 22MAY08 070 23MAY08 070 24MAY08 070 25MAY08 070 26MAY08 070 27MAY08 070 28MAY08 070 29MAY08 070 30MAY08 070 31MAY08 070 01JUN08 070 02JUN08 070 03JUN08 068 04JUN08 068 05JUN08 068 06JUN08 068 07JUN08 068 08JUN08 068 09JUN08 070 10JUN08 070 11JUN08 070 12JUN08 070 13JUN08 070 14JUN08 070 15JUN08 070 16JUN08 070 17JUN08 070 18JUN08 070 19JUN08 070 20JUN08 070 21JUN08 070 22JUN08 070 23JUN08 070


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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