Geomagnetic Activity Summary for 2018

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Carbon60
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Geomagnetic Activity Summary for 2018

Post by Carbon60 » Mon Dec 31, 2018 6:07 pm

Hi Folks,

It's the end of 2018 and time for a summary of the geomagnetic activity recorded during 2018 on my home brew magnetometer here in the North-West of England. I've had a few short 'outages' with one thing or another, so the record is not as complete as I would have liked, with February and December being particularly weak on usable data. Nevertheless, the record does display the various intermittent bursts of activity that occurred throughout the year from holes in the Sun's outer atmosphere (corona) and consequent fast flowing solar wind. Mostly the resulting storms were weak (G1) with an occasional G2, but all of them resulted in aurora.

The data have been plotted as raw 'rate of change' over time, in arbitrary units, together with running average of these data as a means of smoothing.
2018 Summary.jpg
2018 Summary.jpg (368.4 KiB) Viewed 316 times
I hope you find this interesting.

Thanks for looking.

Happy New Year to all.
Best wishes for 2019

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Montana
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Re: Geomagnetic Activity Summary for 2018

Post by Montana » Tue Jan 01, 2019 11:26 am

Both equinox zones looked the most interesting again, it is a good record to use to help plan an aurora holiday :) I hope the problems with the magnetometer are all sorted now?

Happy New Year!
Alexandra

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Re: Geomagnetic Activity Summary for 2018

Post by marktownley » Tue Jan 01, 2019 12:08 pm

Good stuff Stu! The coronal holes are certainly produce the goods when it comes to aurora. We're off aurora hunting at the end of October, fingers crossed one of those coronal holes is about then.
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Re: Geomagnetic Activity Summary for 2018

Post by Carbon60 » Tue Jan 01, 2019 3:17 pm

Thanks, Alexandra/Mark.

All up and working again :) It took a day or two to get to the bottom of the problem, which I attributed to a noisy power supply. Good luck in October, Mark.

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Re: Geomagnetic Activity Summary for 2018

Post by marktownley » Tue Jan 01, 2019 5:43 pm

Carbon60 wrote:
Tue Jan 01, 2019 3:17 pm
which I attributed to a noisy power supply.

Noisy power supplies are bad things. They give us more noise in our imaging (USB power) and make our hifi systems sound worse than they should. Now here's one playing havoc with your magnetometer. We got a 'hive' light bulb, and, depending where we plug it in depends on how much it flickered, all down to noisy power.
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Re: Geomagnetic Activity Summary for 2018

Post by p_zetner » Tue Jan 01, 2019 11:03 pm

That’s an impressive record, Stu.
How does it compare with a solar active year?

I agree with Mark. Noisy power supplies are bad things! Often times very difficult to diagnose.

Cheers and Happy New Year.
Peter

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Re: Geomagnetic Activity Summary for 2018

Post by Carbon60 » Wed Jan 02, 2019 7:37 pm

p_zetner wrote:
Tue Jan 01, 2019 11:03 pm
That’s an impressive record, Stu.
How does it compare with a solar active year?

I agree with Mark. Noisy power supplies are bad things! Often times very difficult to diagnose.

Cheers and Happy New Year.
Peter
Thanks, Peter.

My records don't go back far enough, unfortunately. I'm looking forward, though, to the next cycle to see how it builds from solar minimum. :)

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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Carbon60
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Re: Geomagnetic Activity Summary for 2018

Post by Carbon60 » Wed Jan 02, 2019 7:39 pm

marktownley wrote:
Tue Jan 01, 2019 5:43 pm
Carbon60 wrote:
Tue Jan 01, 2019 3:17 pm
which I attributed to a noisy power supply.

Noisy power supplies are bad things. They give us more noise in our imaging (USB power) and make our hifi systems sound worse than they should. Now here's one playing havoc with your magnetometer. We got a 'hive' light bulb, and, depending where we plug it in depends on how much it flickered, all down to noisy power.
Hi Mark,

It certainly kept me guessing for a while......

Stu.
Lunt LS60THa B1200 PTFT
150mm H-alpha Solar telescope with Lunt35 mod
DMK41, Basler acA1920-155
NEQ6 Pro-mount
Fluxgate Magnetometers (1s and 150s Cadence)
More images at http://www.flickr.com/photos/solarcarbon60/

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