AG4FW(Ed's) & KG4IWR(Toni's) Solar Propagation Info

Solar Propagation

The Flux stands for Solar Flux and is followed by a number that is being reported by the Space Environoment Center(higher number is better)

The A stands for the A-Index, (a low number is best..11 + is bad)

.The K, for the K-Index(a low number is best.. 3 is bad..5 very bad).

The Solar Flux is an indicator of solar activity and solar energy striking the Earth's surface. The K and A indices are indicators of geomagnetic disturbances, which can severely disrupt communications on earth and in space.

Some Popular Ham Links to Solar info

Here is a good site that has info and charts for the Ham to use for his DX operation. http://dxlc.com/solar/ gives a Solar Terrestrial Activity Report.

Here is a site that has the Geomagnetic K-indices and Running A-indices: http://sec.noaa.gov/alerts/solar_indices.html

Click on image to see the most recent image of the outer Solar atmosphere.
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Credits and thanks go to the
Space Environment Center, NOAA, US Dept. of Commerce

Current SXI 4MK Corona image

These images show the outer Solar atmosphere, or corona, as viewed by the GOES 12 Solar X-ray Imager (SXI). This region of the Sun has a temperature of one to several million degrees kelvin (Mega Kelvin MK) and is active on a time-scale of seconds to weeks. Here the red image represents the ionized gas (plasma) of the corona at about 3.0 MK and the green image shows the plasma at 4.0 MK. Bright areas, referred to as active regions, are associated with sunspots seen in white light images and may produce explosive events known as flares. Dark regions are coronal holes where the fastest solar wind originates. Solar activities can and will effect radio propagation. More information can be obtained at "http://www.sel.noaa.gov/sxi/latest.html"

To see NOAA Space weather Scales including NOAA Space Weather Scale for Radio Blackouts look at "http://sec.noaa.gov/NOAAscales/index.html"

EIT IMAGES

EIT 171..........EIT 195............EIT 284 ..........EIT 304

Click on image to see most recent image

EIT (Extreme ultraviolet Imaging Telescope) images the solar atmosphere at several wavelengths, and therefore, shows solar material at different temperatures. In the images taken at 304 Angstroms the bright material is at 60,000 to 80,000 degrees Kelvin. In those taken at 171, at 1 million degrees. 195 Angstrom images correspond to about 1.5 million Kelvin. 284 Angstrom, to 2 million degrees. The hotter the temperature, the higher you look in the solar atmosphere.

Visit SOHO Explore! to learn more about the Sun.

MDI IMAGES

Continuum...Magnetogram

Click on image to see most recent image

The MDI (Michelson Doppler Imager) images shown here are taken in the continuum near the NiI 6768 Angstroms line. The most prominent features are the sunspots. This is very much how the Sun looks like in the visible range of the spectrum (for example, looking at it using special 'eclipse' glasses: Remember, do not ever look directly at the Sun!). The magnetogram image shows the magnetic field in the solar photosphere, with black and white indicating opposite polarities.

Visit SOHO Explore! to learn more about the Sun.

Solar Magnetic field

Near Real-time Solar Wind

Solar wind values collected by the Advanced Composition Explorer (ACE). Data is averaged over the last 15-minutes for the values.

Left Click here for Explanation of dials

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Born on: December 15, 2005