Weekend Geomagnetic Storm UPDATED 7th & 9th Oct. 18

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Carbon60
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Weekend Geomagnetic Storm UPDATED 7th & 9th Oct. 18

Post by Carbon60 » Mon Oct 08, 2018 5:59 am

Hi,

Fast flowing solar wind from a large canyon shaped coronal hole, with embedded southerly directed magnetic fields, washed over our planet over the weekend creating a G1 storm and beautiful aurora. Here are my magnetometer data captured throughout the event. The storm left our magnetic field ringing like a bell for several hours before returning to relative calm.
20181008_coronal hole.jpg
20181008_coronal hole.jpg (198.46 KiB) Viewed 161 times
Thanks for looking.

Stu.
Last edited by Carbon60 on Tue Oct 09, 2018 4:05 pm, edited 1 time in total.
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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marktownley
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Re: Weekend Geomagnetic Storm 7th & 8th Oct. 18

Post by marktownley » Mon Oct 08, 2018 9:37 am

Good catch Stu, I saw some nice images taken from Anglesey of the resulting aurora.
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p_zetner
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Re: Weekend Geomagnetic Storm 7th & 8th Oct. 18

Post by p_zetner » Mon Oct 08, 2018 3:32 pm

Hi Stu.

Saw the SDO image of the large coronal hole on Spaceweather a couple of days ago and was anticipating your report.
Sure enough .... !

Cheers.
Peter

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Carbon60
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Re: Weekend Geomagnetic Storm 7th & 8th Oct. 18

Post by Carbon60 » Tue Oct 09, 2018 10:04 am

Many thanks, Mark/Peter.

Here's an updated one with added data from the DSCOVR satellite which illustrates the corresponding Bz magnetic variations within the solar wind (red line). As this turns south, there's a corresponding increase in geomagnetic activity.
20181009_coronal hole.jpg
20181009_coronal hole.jpg (222.27 KiB) Viewed 109 times
Thanks for your interest

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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