[SADXA] Solar storm

[Darrel]

This movie is quite fun.  It's an image of the entire sky at 30 MHz 
yesterday, made from the LWA radio telescope located in the Sevilleta 
National Wildlife Refuge in NM.  It's all at 30 MHz.

http://lwalab.phys.unm.edu/lwatv2/59452.mov

The left image is the power received from the sky, the right is 
polarized power.  Most natural emission is unpolarized, and most 
man-made interference is polarized, but just as a general rule.
The move is a factor of 100 or so faster than real time.  It shows 
interference around the edge, or the horizon, which is probably mainly 
from lightning storms.  It shows the emission from the Galactic plane, 
and the radio sources Cygnus A ad Cas A, gradually moving across the sky.
 From about 9 seconds to 11 seconds into the movie, in the right image, 
you can see an aircraft or a satellite, I don't know which, going from 
lower right to the left of the plot.
The sun rises, on the left of the plot, at about 7 minutes into the 
movie.  As it rises, it's a very weak source, barely visible.
At about 7:55 into the movie there's a solar burst that briefly 
saturates the image.
 From about 8:00 minutes into the movie, you can really see the sun 
popping off bursts.
At 8:45 the sun saturates the image again.
Throughout the movie, there's interference flashing on and off around 
the edge of the plot, close to the horizon.  I'm guessing that the 
interference is probably from lightning storms.

    Just fun to watch.

Cheers,
             Darrel.