Return-Path: Received: (qmail 13122 invoked from network); 23 May 2003 23:20:34 -0000 Received: from netmail02.services.quay.plus.net (212.159.14.221) by mailstore with SMTP; 23 May 2003 23:20:34 -0000 Received: (qmail 13035 invoked by uid 10001); 23 May 2003 23:20:34 -0000 Received: from post.thorcom.com (193.82.116.70) by netmail02.services.quay.plus.net with SMTP; 23 May 2003 23:20:34 -0000 X-SQ: A Received: from majordom by post.thorcom.com with local (Exim 4.14) id 19JLoP-00062s-3K for rsgb_lf_group-outgoing@blacksheep.org; Sat, 24 May 2003 00:18:57 +0100 Received: from [194.73.73.81] (helo=tungsten.btinternet.com) by post.thorcom.com with esmtp (Exim 4.14) id 19JLoK-00062j-CR for rsgb_lf_group@blacksheep.org; Sat, 24 May 2003 00:18:52 +0100 Received: from host213-122-19-53.in-addr.btopenworld.com ([213.122.19.53] helo=Main) by tungsten.btinternet.com with smtp (Exim 3.22 #23) id 19JLoJ-0007KI-00 for rsgb_lf_group@blacksheep.org; Sat, 24 May 2003 00:18:52 +0100 Message-ID: <003201c32181$68f52560$6507a8c0@Main> From: "Alan Melia" To: rsgb_lf_group@blacksheep.org References: Date: Fri, 23 May 2003 23:48:23 +0100 MIME-Version: 1.0 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Subject: LF: Re: SIE? (Sudden Ionospheric Enhancement) Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, hits=-13.5 required=5.0tests=ORIGINAL_MESSAGE,QUOTED_EMAIL_TEXT,QUOTE_TWICE_1,REFERENCESversion=2.53 X-Spam-Checker-Version: SpamAssassin 2.53 (1.174.2.15-2003-03-30-exp) X-SA-Exim-Scanned: Yes Sender: Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group X-SA-Exim-Rcpt-To: rsgb_lf_group-outgoing@blacksheep.org X-SA-Exim-Scanned: No; SAEximRunCond expanded to false Hi Laurence I presume you mean 23May, Unless of course you are time-surfing :-)) The strange thing is there are no flares to account for that sighting at all on the 23rd. The X-ray level from Geos is very low (B3-Class). I found in the past that events like that normally coincide with, at least, an M-Class flare. C-class can cause small enhancements on more local paths. The last C-Class was on the 22nd (a C5 just around 0700z). There was a minor geomag storm which drove the Kp up to 5 between 0900 and 1200z, but that doesnt normally give that kind of effect, and no increase in the proton flux. MMMMMmmmm fascinating !! Thanks and Cheers de Alan G3NYK alan.melia@btinternet.com ----- Original Message ----- From: "Laurence J Howell" To: Sent: 23 May 2003 18:07 Subject: LF: SIE? (Sudden Ionospheric Enhancement) > > Plowing thru the overnight Argos' I see a sudden appearance/dissapear of > DCF39 today 23rd June 2003 (havent seen DCF39 for a while) > > Appearance Commencement 1253 UTC for 4 mins - some small Mpath > <0.05Hz > Appearance Commencement 1323 UTC for 11 mins - some small MPath > <0.1Hz