INCOMING PLASMA CLOUDS: On April 18th and 19th, a series of minor CMEs puffed away from the sun. Three of them are heading in our general direction. Analysts at the Goddard Space Weather Lab have prepared an animated forecast track of the ensemble:
According to the forecast, the clouds are going to hit Mercury, Earth, Mars and rover Curiosity en route to Mars. The impact on our planet, on April 22nd around 00:50 UT, is expected to be minor with auroras likely only at higher latitudes. Aurora alerts: text, voice.
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Solar wind
speed: 334.0 km/sec
density: 0.7 protons/cm3
explanation | more data
Updated: Today at 1706 UT
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X-ray Solar Flares
6-hr max: C1 1405 UT Apr22
24-hr: C1 1405 UT Apr22
explanation | more data
Updated: Today at: 1700 UT
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Daily Sun: 21 Apr 12
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The solar disk is peppered with sunspots. Chance of M-flares today=30%. Credit: SDO/HMI
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Sunspot number: 147
What is the sunspot number?
Updated 20 Apr 2012
Spotless Days
Current Stretch: 0 days
2012 total: 0 days (0%)
2011 total: 2 days (<1%)
2010 total: 51 days (14%)
2009 total: 260 days (71%)
Since 2004: 821 days
Typical Solar Min: 486 days
Updated 20 Apr 2012
The Radio Sun
10.7 cm flux: 142 sfu
explanation | more data
Updated 20 Apr 2012
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Current Auroral Oval:
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Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
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Planetary K-index
Now: Kp= 2 quiet
24-hr max: Kp= 3 quiet
explanation | more data
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Interplanetary Mag. Field
Btotal: 4.1 nT
Bz: 3.9 nT south
explanation | more data
Updated: Today at 1706 UT
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Coronal Holes: 21 Apr 12
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There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
