RE: ARLA/CLUSTER: SpaceWeather.com: Pergunta, você ouviu ecos de longa duração a 27 de Novembro?

[CT1EKD]

Umas das hipoteses é ter vindo de Jupiter...
Há muito que os radioA astronomos sabem que Jupiter também é uma fonte de
actividade radio em HF: e pelo menos no dia 28 houve alguns alertas de
astrónomos que estariam a receber sinais oriundos duma tempestade de
Jupiter. 
Pode ter sido o inicio dessa tempestade/actividade
Não acham uma hipótese viável? Pela distancia também pode confirmar os tais
30 minutos de delay no echo.


Pedro - CT1EKD


-----Original Message-----
From: cluster-bounces  radio-amador.net
[mailto:cluster-bounces  radio-amador.net] On Behalf Of João Gonçalves Costa
Sent: sexta-feira, 3 de Dezembro de 2010 10:28
To: 'Resumo Noticioso Electrónico ARLA'
Subject: ARLA/CLUSTER: SpaceWeather.com: Pergunta, você ouviu ecos de longa
duração a 27 de Novembro?

Did you hear Long Delayed Echos on November 27 ?

SpaceWeather.com is asking for any Radio Amateurs who experienced Long
Delayed Echos (LDE's) on November 27 between 1800 and 1930 UT to report them
to DK6NP.

Reports should be sent to Peter Brogl DK6NP 
Email: pb  brogl.net

>From http://spaceweather.com/archive.php?view=1&day=27&month=11&year=2010

A solar wind gust hit Earth's magnetic field on Nov. 27th, sparking a
geomagnetic storm (Kp=6) and an outburst of auroras that surprised
onlookers. "We experienced an explosion of Northern Lights," reports Therese
van Nieuwenhoven of the Polar Light Center in Lofoten, Norway.

"Suddenly, our magnetometers began to show big activity and we could see the
most beautiful and moving auroras."

"I did not expect auroras tonight," adds Bjørn Jørgensen of Tromso, Norway,
"but suddenly there was a huge, powerful outburst that lasted for about an
hour and a half."

Space Weather
http://www.spaceweather.com/

Long-Delay Radio Echos heard on 7 MHz
http://www.southgatearc.org/news/december2010/long_delay_echoes.htm