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DL8AAM > VLF 22.11.01 21:43l 63 Lines 1995 Bytes #-8508 (0) @ WW
BID : MB1DB0EAM010
Read: GUEST
Subj: Satellite tests on VLF !
Path: DB0ZKA<DB0SAA<DB0TTM<DB0SWR<DB0MW<DB0ROF<DB0ERF<DB0ABZ<DB0OCA<DB0FC<
DB0EAM
Sent: 011122/1913z @:DB0EAM.#HES.DEU.EU [Kassel DB8AS] DB19c1 $:MB1DB0EAM010
From: DL8AAM @ DB0EAM.#HES.DEU.EU (Tom)
To: VLF @ WW
Fwd from Internet, 73 - Tom / DL8AAM
From: "Trond Jacobsen" <trond.jacobsen@halden.net>
Date: Tue, 20 Nov 2001 19:38:17 -0000
Subject: [WUN] VLF and LF; Space to ground transmissions, starting 21 NOV 2001
Hello EveryWun
Here is a unique challenge to do some very exotic monitoring. The message
is forwarded from the ELFRAD group. I wonder if they QSL ?
best regards
Trond at ALFLAB,
Halden in Norway
59=B08'12''N 11=B023'55''E
Forwarded message:
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=20
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=20
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
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