LF: Re: Re: 74k poorer

[<jrusgrove@comcast.net>]

Alan, Mike

Wouldn't call -28 nT a "crash". In the past, that DST level has had no effect on DK7FC 137 kHz. Last 
night  started out at 2200 Z with DK7FC 137 kHz at usual strength but abruptly went downhill from 
there with particularly poor copy overnight. The http://www.n3kl.org/sun/images/noaa_satenv.gif? 
chart shows some 'gyrations' starting around that time. The 
http://www.swpc.noaa.gov/SWN/sw_dials.gif speed and pressure data are missing ... but bet they are 
'disturbed'.
Looks like the 'jello' may have gotten a good shake ... Ionoquake? ;~)

Jay W1VD  WD2XNS  WE2XGR/2  WG2XRS/2




----- Original Message ----- 
From: "Alan Melia" <alan.melia@btinternet.com>
To: <rsgb_lf_group@blacksheep.org>
Sent: Wednesday, January 08, 2014 6:47 AM
Subject: LF: Re: 74k poorer


> Hi Mike interesting, one  would normally not expect a Dst of -30nT o be significant and it 
> recovered quickly suggesting that there was not a big precipitation. There could be amuch more 
> serious event 9/10th when the CME from last nights X1.6 flare arrives. The suggestion is it 
> Earthbound, though the spot is a little below the solar equator. Strangely the flare occurred 
> about 30 mins before Stargazing Live on BBC2.
> Alan
> G3NYK
>
>
> ----- Original Message ----- 
> From: "Mike Dennison" <mike.dennison@ntlworld.com>
> To: <rsgb_lf_group@blacksheep.org>
> Sent: Wednesday, January 08, 2014 10:37 AM
> Subject: LF: 74k poorer
>
>
> > My 74kHz reception was interrupted between 0030 and 0300 because of
> > an antenna fault (pesky intermittent that I thought I had found).
> > However, there was no DX reception before 0030 and very poor for most
> > of the night. There were long periods between 0400 and 1000UTC when
> > Dex, XRS5, was visible but just below readable. Surprisingly Bob,
> > XRS4, only became readable just before 0600 until 0800.
> >
> > Interestingly, the Dst crashed overnight - see
> > http://lasp.colorado.edu/space_weather/dsttemerin/dsttemerin.html
> >
> > de Mike, G3XDV
>
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