CME impact (from AR1990)- magnetometer response

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Carbon60
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CME impact (from AR1990)- magnetometer response

Post by Carbon60 »

Hi all,

The recent CME from AR1990 arrived yesterday and sparked a G2 geomagnetic storm and beautiful aurora down to lower latitudes than usual.

Here is the response from my magnetometer. Unfortunately, I missed the light show :(
20140227 CME impact.jpg
20140227 CME impact.jpg (56.75 KiB) Viewed 3595 times
Thanks for looking.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: CME impact (from AR1990)- magnetometer response

Post by Montana »

I noticed the episode unfurl on the Lancaster site but I think I was too late, I was imaging around 9.30-10.30 and I think I should have missed Warehouse 13 on the TV and gone out between 8-9 instead :(
I've taken some photos but of some Manchester light pollution I think. I need to have a look tonight.

Well caught Stu, but you need to refine your alert system :D

Alexandra


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Re: CME impact (from AR1990)- magnetometer response

Post by Carbon60 »

Hi Alexandra,

I was out at about 9:30pm and couldn't see anything either. Oh well. Too much light here too.

Hope the pics come out.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: CME impact (from AR1990)- magnetometer response

Post by swisswalter »

Hi Stuart

very cool


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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Re: CME impact (from AR1990)- magnetometer response

Post by Carbon60 »

Thanks Walter.

I've now extracted the hi-res data and plotted the impact event in detail. This represents the slice of time that appears as a simple downward spike in the original data (collected at 2.5minute intervals). With the hi-res data (1 second intervals) we can see that the spike is actually more complex, with a couple of 'shoulders' just before and just after the lowest point. It would be interesting to see how this changes from CME to CME.
20140227 CME impact_Hi-Res.jpg
20140227 CME impact_Hi-Res.jpg (96.25 KiB) Viewed 3581 times
Cheers

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: CME impact (from AR1990)- magnetometer response

Post by Montana »

It would be interesting to match the dips with the aurora sightings around the UK. It seemed that most of the auroras were sighted around 8pm which is a long time after the main dip. This would help a great deal with prediction in future :) :) :)

Alexandra


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Re: CME impact (from AR1990)- magnetometer response

Post by marktownley »

I dozed off on the sofa on thursday evening and woke around 10 ish, missing the main part, but got this image from around 10.30ish. There is the faintest band below Orions belt through the hyades, but it is very borderline. This is the 3rd time i've seen the aurora from the UK, and after being spoiled by Icelandic auroras on numerous occasions i'm maybe a bit complacent about this UK one... :roll:
IMG_6416.jpg
IMG_6416.jpg (308.81 KiB) Viewed 3574 times


Image
http://brierleyhillsolar.blogspot.co.uk/
Solar images, a collection of all the most up to date live solar data on the web, imaging & processing tutorials - please take a look!
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Re: CME impact (from AR1990)- magnetometer response

Post by Carbon60 »

Montana wrote:It would be interesting to match the dips with the aurora sightings around the UK. It seemed that most of the auroras were sighted around 8pm which is a long time after the main dip. This would help a great deal with prediction in future :) :) :)

Alexandra
Very interesting, Alexandra. There is actually a second substantial downward spike just after 8:00pm (around 8:26pm), which could account for the sightings around this time.

Here's a plot of 'rate of change' which shows this event more clearly. This is followed by some further turbulence over the next few hours.
20140227 CME Rate of Change.jpg
20140227 CME Rate of Change.jpg (96.94 KiB) Viewed 3569 times
Cheers

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: CME impact (from AR1990)- magnetometer response

Post by Carbon60 »

marktownley wrote:I dozed off on the sofa on thursday evening and woke around 10 ish, missing the main part, but got this image from around 10.30ish. There is the faintest band below Orions belt through the hyades, but it is very borderline. This is the 3rd time i've seen the aurora from the UK, and after being spoiled by Icelandic auroras on numerous occasions i'm maybe a bit complacent about this UK one... :roll:
IMG_6416.jpg
You've been spoiled, Mark.

Looking forward to seeing your time-lapse images from Iceland.

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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Re: CME impact (from AR1990)- magnetometer response

Post by swisswalter »

Hi Stuart

very interesting that HIRES stuff


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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Re: CME impact (from AR1990)- magnetometer response

Post by Montana »

Mark, isn't that looking south?

Thanks Stu :)

Alexandra


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Re: CME impact (from AR1990)- magnetometer response

Post by marktownley »

Montana wrote:Mark, isn't that looking south?
Left in the frame is looking west, right in the frame heading around to north... North is just the other side of the chimney breast - I was poking my head out of the loft window...


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Re: CME impact (from AR1990)- magnetometer response

Post by swisswalter »

marktownley wrote:I dozed off on the sofa on thursday evening and woke around 10 ish, missing the main part, but got this image from around 10.30ish. There is the faintest band below Orions belt through the hyades, but it is very borderline. This is the 3rd time i've seen the aurora from the UK, and after being spoiled by Icelandic auroras on numerous occasions i'm maybe a bit complacent about this UK one... :roll:
IMG_6416.jpg

Mark

those three bright lights near the bottom of the pic, are they the belt stars of Orion :oops: :oops: :oops: :oops:


Only stardust in the wind, some fine and some less fine scopes, filters and adapters as well. Switzerland 47 N, 9 E, in the heart of EUROPE :)

from 7 am - 7 pm http://www.nanosys.ch

from 7.01 pm - 6.59 am http://www.wastronomiko.com some times vice versa ;)
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Re: CME impact (from AR1990)- magnetometer response

Post by marktownley »

You can see from this picture why I ditched nighttime astronomy and went over to solar. The middle of the city is not good for stars...


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http://brierleyhillsolar.blogspot.co.uk/
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Re: CME impact (from AR1990)- magnetometer response

Post by pmlevine »

Stuart,
Interesting graph, tell me about your magnetometer setup. Your solar images on Flickr are amoung the most detailed and interesting I've seen.
Phil


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Re: CME impact (from AR1990)- magnetometer response

Post by Carbon60 »

Hi Phil,

There is a detailed description of the set-up in the tutorial section, which I hope will be of some help.

Thanks for the compliment about my Flickr images. Still learning.....

Best regards

Stu.


H-alpha, WL and Ca II K imaging kit for various image scales.
Fluxgate Magnetometers (1s and 150s Cadence).
Radio meteor detector.
More images at http://www.flickr.com/photos/solarcarbon60/
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