Return-Path: Received: (qmail 5946 invoked from network); 20 Nov 2001 16:57:07 -0000 Received: from unknown (HELO murphys-inbound.services.quay.plus.net) (212.159.14.225) by excalibur.plus.net with SMTP; 20 Nov 2001 16:57:07 -0000 X-Priority: 3 X-MSMail-Priority: Normal Received: (qmail 14162 invoked from network); 20 Nov 2001 16:57:04 -0000 Received: from unknown (HELO post.thorcom.com) (212.172.148.70) by murphys.services.quay.plus.net with SMTP; 20 Nov 2001 16:57:04 -0000 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 Received: from majordom by post.thorcom.com with local (Exim 3.33 #2) id 166E8B-00077i-00 for rsgb_lf_group-outgoing@blacksheep.org; Tue, 20 Nov 2001 16:52:19 +0000 Received: from mailout03.sul.t-online.com ([194.25.134.81] helo=mailout03.sul.t-online.de) by post.thorcom.com with esmtp (Exim 3.33 #2) id 166E89-00077d-00 for rsgb_lf_group@blacksheep.org; Tue, 20 Nov 2001 16:52:18 +0000 Received: from fwd03.sul.t-online.de by mailout03.sul.t-online.de with smtp id 166E7L-0007Dk-00; Tue, 20 Nov 2001 17:51:27 +0100 Received: from oemcomputer (520006441062-0001@[217.80.67.78]) by fwd03.sul.t-online.com with smtp id 166E72-0ASxQ8C; Tue, 20 Nov 2001 17:51:08 +0100 From: "ARi" To: rsgb_lf_group@blacksheep.org Subject: LF: IMAGE Satellite Experiment IMAGE Satellite Experiment Date: Tue, 20 Nov 2001 17:51:05 0100 MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1; format=flowed Content-Transfer-Encoding: 8bit X-Mailer: SimpleCheck 5.2c Message-ID: <166E72-0ASxQ8C@fwd03.sul.t-online.com> X-Sender: 520006441062-0001@t-dialin.net Precedence: bulk Reply-To: rsgb_lf_group@blacksheep.org X-Listname: rsgb_lf_group Sender: Dear LF and Natural Radio Observers, INSPIRE has arranged to perform experiments to test propagation to the ground from the Radio Plasma Imager instrument on the IMAGE Satellite over two weeks starting on November 21, 2001. A table at the end gives the times for the experiments. There will be two sets of experiments, at 5-15 kHz (VLF) and at 130 and 380 kHz. The 5-15 kHz experiments will be performed on the incoming (towards perigee), southward traveling part of every orbit, starting at about the point where the magnetic field line through the satellite is at about 50 degrees N latitude. They will continue until the the 130 and 380 kHz experiment begins. The 130 and 380 kHz transmissions will begin when the satellite is four minutes before the closest approach to the South Pole, and continue four minutes past closest approach. You could be prime observers for the VLF experiments! The VLF transmissions will be 0.125 seconds on, 0.375 seconds off, at 5, 7, 9, 11, 13, and 15 kHz, repeated over and over. Details of the satellite orbit, both graphical and tabular, may be found at the Satellite Situation Center web site: http://sscweb.gsfc.nasa.gov/cgi-bin/sscweb/Locator.cgi and http://www.lwca.org/mb/msg/1462.htm ARi.