Radiation event from sun 12/7/06

[Sun Dog]

NOAA Space Weather Scale for Solar Radiation Storms

S3 Strong

Biological: radiation hazard avoidance recommended for astronauts on EVA; passengers and crew in high-flying aircraft at high latitudes may be exposed to radiation risk.***

Satellite operations: single-event upsets, noise in imaging systems, and slight reduction of efficiency in solar panel are likely.

Other systems: degraded HF radio propagation through the polar regions and navigation position errors likely.

http://www.sec.noaa.gov/NOAAscales/index.html#SolarRadiationStorms

http://www.spaceweather.com/

[Sciencetech]

Yep. A total HF blackout at the Pole during that time, probably McMurdo too.

One experiment I maintain (looks for radar echoes off meteorites!) blacked out too because of ionospheric conditions. At first we thought it was a hardware problem… Lesson learned.

g

[Sun Dog]

Hi Glenn,

Hope your experiments are back to normal.

I did not see much in the tv news about it. Like most news I have to do a little looking and searching. I wonder if the north high latitudes had some good N. Lights?

It looks like it is over since NASA is letting the spacewalkers go out today.

“Meanwhile, STS-116 and Expedition 14 crew members have transferred to the station spacesuits and tools that will be used during STS-116’s three spacewalks. The first excursion will take place at 3:42 p.m. Tuesday. “

http://www.nasa.gov/mission_pages/shuttle/main/index.html

[Sciencetech]

I have a friend wintering at Summit camp in Greenland, and she reported some beautiful auroras during the solar storm. Here’s a picture she sent (used without her permission, but I don’t think she’d mind):

[Sun Dog]

Very nice photo Glenn. Thanks to your friend up there in Greenland.

[skua77]

Wow!

I’m impressed. Summit is an up and coming place…much nicer looking than Thule where I spent a bunch of time a long time ago…thanks for sharing!

[Author]

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