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LF: Re: Re: 74k poorer

To: <[email protected]>
Subject: LF: Re: Re: 74k poorer
From: <[email protected]>
Date: Wed, 8 Jan 2014 07:35:11 -0500
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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" <[email protected]>
To: <[email protected]>
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" <[email protected]>
To: <[email protected]>
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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