Thursday, October 25, 2012

quoted from Spaceweather.com

 
Solar wind
speed: 337.1 km/sec
density: 1.5 protons/cm3
explanation | more data
Updated: Today at 0857 UT
X-ray Solar Flares
6-hr max: C2
0422 UT Oct25
24-hr: C2
0422 UT Oct25
explanation | more data
Updated: Today at: 0900 UT
Daily Sun: 25 Oct 12
Sunspot 1598 poses a threat for M- and X-class solar flares. Credit: SDO/HMI
Sunspot number: 78
What is the sunspot number?
Updated 25 Oct 2012

Spotless Days
Current Stretch: 0 days
2012 total: 0 days (0%)
2011 total: 2 days (<1 br="br"> 2010 total: 51 days (14%)
2009 total: 260 days (71%)
Since 2004: 821 days
Typical Solar Min: 486 days

Update 25 Oct 2012


The Radio Sun
10.7 cm flux: 136 sfu
explanation | more data
Updated 25 Oct 2012

Current Auroral Oval:
Switch to: Europe, USA, New Zealand, Antarctica
Credit: NOAA/POES
Planetary K-index
Now: Kp= 1 quiet
24-hr max: Kp= 1
quiet
explanation | more data
Interplanetary Mag. Field
Btotal: 3.7 nT
Bz: 1.4 nT south
explanation | more data
Updated: Today at 0857 UT
Coronal Holes: 25 Oct 12
There are no large coronal holes on the Earthside of the sun. Credit: SDO/AIA.
SPACE WEATHER
NOAA Forecasts
Updated at: 2012 Oct 24 2200 UTC
FLARE
0-24 hr
24-48 hr
CLASS M
60 %
60 %
CLASS X
10 %
10 %
Geomagnetic Storms:
Probabilities for significant disturbances in Earth's magnetic field are given for three activity levels: active, minor storm, severe storm
Updated at: 2012 Oct 24 2200 UTC
Mid-latitudes

0-24 hr
24-48 hr
ACTIVE
05 %
05 %
MINOR
01 %
01 %
SEVERE
01 %
01 %
High latitudes

0-24 hr
24-48 hr
ACTIVE
15 %
15 %
MINOR
10 %
10 %
SEVERE
05 %
05 %
 
Thursday, Oct. 25, 2012
What's up in space
 
Listen to radar echoes from satellites and meteors, live on listener-supported Space Weather Radio.  
Spaceweather Radio is on the air
CHANCE OF FLARES: NOAA forecasters estimate a 60% chance of M-class solar flares and a 10% chance of X-flares during the next 24 hours. The most likely source of any eruption is big sunspot AR1598. Solar flare alerts: text, voice.
MAGNETIC FROTH: Sunspot AR1598 has quieted down since unleashing an X1-class solar flare on Oct. 23rd. It might be the calm before the storm. The sunspot is still large and apparently potent, as shown in this image captured by amateur astronomer Sergio Castillo of Inglewood,California:
Castillo used a telescope capped with a "Calcium K" filter tuned to the light of ionized calcium atoms in the sun's lower atmosphere. Calcium K filters highlight the bright magnetic froth that sometimes forms around a sunspot's dark core. AR1598 is very frothy indeed.
Magnetic froth does not necessarily herald an explosion, but it does guarantee a photogenic sunspot. Scan the gallery for the latest images:
ARCTIC AURORAS: On the North Slope of Alaska, the Beaufort Sea is beginning to freeze as northern winer approaches. Last night, Northern Lights illuminated the phase change:
"I finally caught some auroras over the hardening sea," says photographer Greg Syverson. "This was a 3 second exposure taken with my Canon 5D digital camera set at 3200asa."

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