Current solar and geophysical information

The links below provide information on current solar and geophysical information.

Please note the RSGB is not responsible for the content of external websites.

• Classification of X-Ray Solar Flares
• Solar Radio Bursts
• Space Weather Today – University of Michigan images of the current state of the sun and the aurora
• Space Environment Center– vast quantities of information including a number of the sources listed separately below.
  • Interplanetary Magnetic Field explained with diagrams
  • Latest Solar-Geophysical Links
  • Daily Geophysical Data
  • Alerts and Warnings
  • Daily Geomagnetic Data Last 30 days
  • GOES X-Ray data – current and historical
  • ACE Hourly readings
  • D-Region Absorption Predictions
  • Daily USAF/NOAA Report on solar-geomagnetic activity and short-term forecast
• Solar-Terrestrial Activity – by Jan Alvestad brings together daily information on solar indices (SSN, Flux, Ap, Kp, solar wind speeds) for the past two months. There are also plots of electron fluence and coronal hole data from the WIND satellite, and of cycles 21, 22 and 23 and a graphical comparison of Cycles 21, 22, 23. Clear and well presented. Also see Historical Solar Data AND Archive of Solar-Terrestrial Activity Reports
• Another excellent space weather site is presented by North West Research Associates In addition to links to sites listed ndividually below it offers plots for the previous and current Bartels rotation, including solar flux, SSN and the T Index from the IPS, daily Ap Index, Summary of Solar and Geophysical Activity and Comparison of Sunspot Number and Solar Flux Indices. There are also NOAA/Tiros Auroral Boundary Indices

For more detailed data including numerous time-series

• Geomagnetic data from UK observatories – current and historical, from the British GeologicalSurvey
• Solar Activity Plotting Program – WA4TTK offers this program (v3.01), which is said to update solar flux and sunspot number databases automatically when it scans new propagation bulletins.
• Near-Realtime X-Ray Absorption Maps – at 5, 10, 15, 20, 25, 30MHz
• Space Weather Links from ESA – wide range of links
• NASA Solar Data Analysis Center – includes near realtime solar wind parameters
• Latest SOHO images
• SOHO Extreme Ultraviolet Imaging Telescope
• Solar Data Analysis Center
• SOHO Home Page – including current space weather graphics
• Solar wind velocity data – from SOHO for the last 48 hours, time-lag of  around 30 minutes
• SOHO/CELIAS/MTOF Proton Monitor Data
• National Geophysical Data Center Archive for historical data
• Magnetic Declination
• Maximum height F2 layer map
• Solar  Zenith Angles – Near Real Time map
• Data from The Institute of Propagation Studies in Australia – Good site, well presented
• Belgian Institute for Space Aeronomy – a wealth of links to current and historical data
• Ionospheric models
• Solar Data from Mount Wilson Observatory
• Meudon Observatory – includes Monthly Kp from Gottingen, monthly SIDC Data from Brussels, charts of 10cm solar flux for last 25 days with forecast for next three days
• Space Physics Interactive data resource from IPS Australia
• Sun in Soft X-Rays from the Yohkoh satellite – (movie requiring at least 1.5Mb)
• World Data Centres – Guide to Holdings