|
SDO White light
6500 K
(or Dunn)
Surface
|
EIT
He II 304 Å
60-80000 K
Chromosphere
|
EIT
Fe IX/I 171 Å
1 million degrees
Low corona
|
LASCO C2
External corona up to
8.2 million km from
Sun
|
|
|
![[Solar Dynamics Observatory (SDO) Atmospheric Imaging Assembly (AIA)
image at 304 Ã… Å]](http://umbra.nascom.nasa.gov/images/latest_aia_304_tn.gif "False color image of the Sun in He II 304 Ã… Å")
|
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WSA-Enlil
Solar Wind Prediction
|
Planetary
K index
|
|
|
|
|
VHF Aurora :
|
|
|
144 MHz E-Skip
over Europe :
|
|
|
144 MHz E-Skip
over North America :
|
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D-layer
absorption (50-80 km aloft, HF and LW bands)
|
|
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Below,
the location of the gray line (terminator area in gray), auroral ovals
(green) and maximum usable frequencies (MUF) for paths of 3000 km (cyan,
in MHz)
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Space
Weather Overview
|
|
|
|
X-Ray Flux
(SWPC) |
|
Geomagnetic activity |
|
 |
![[Solar Dynamics Observatory (SDO) Atmospheric Imaging Assembly (AIA)
image at 304 Ã… Å]](http://umbra.nascom.nasa.gov/images/latest_aia_304.gif "False color image of the Sun in He II 304 Ã… Å")
