Radiation event from sun 12/7/06

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    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.




    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.


    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. “



    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.



    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!

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