(Araucaria) Noticia triste OSCAR 52 SK

[Peter Sprengel]

Depois de quase uma década de funcionamento o Satélite OSCAR 52 lançado em 2005 foi permanentemente tirado de serviço ontem 21/07 pois as baterias de lithium pifaram.

A espaçonave completou perto de 50.000 órbitas, com previsão inicial de 1 ano de funcionamento.

Todos os esforços possíveis foram efetuados para tentar revive-lo porém sem sucesso.

O comunicado da ARRL informando o "falecimento" do VO-52 segue abaixo.

73s Peter 3D2XX / PP5XX / PQ8XX / PY5XX / PYØFM / PT9ZZ / PY5CC
GG53qw Itapoá - SC - Brazil
ARAUCARIA DX GROUP MEMBER
DXARC Club Colombia Member
ARRL MEMBER
ZW5B Team.
PT5T Team.
PWØT Team.
PTØS Team.XZ1J Team
3D2C Team
ZXØF, PTØF, PXØF, PUØF Team.
HKØNA Malpelo 2012 Team Member.

CW5R 2010 Team.

> Subject: ARLS003 India's VO-52 Satellite Goes Dark
> Date: Tue, 22 Jul 2014 15:02:59 -0400
> 
> SB SPACE @ ARL $ARLS003
> ARLS003 India's VO-52 Satellite Goes Dark
> 
> ZCZC AS03  
> QST de W1AW  
> Space Bulletin 003  ARLS003
> From ARRL Headquarters  
> Newington, CT  July 22, 2014
> To all radio amateurs
> 
> SB SPACE ARL ARLS003
> ARLS003 India's VO-52 Satellite Goes Dark
> 
> Despite efforts to keep the flagging VUSat OSCAR-52 (VO-52) Amateur
> Radio satellite in operation for a while longer, ground controllers
> have yielded to the nearly decade-old spacecraft's failing
> technology and have permanently taken it out of service. Launched
> into low Earth orbit in 2005, the VO-52 microsatellite carried two
> Amateur Radio transponders for SSB and CW. B.A. "Mani" Subramani,
> VU2WMY/KJ6LRS, of the Indian Space Research Organisation (ISRO) said
> that VO-52's lithium-ion batteries had failed, and the satellite was
> officially decommissioned on July 21.
> 
> The ISRO website can be found at, http://www.isro.org/ .
> 
> "We all here in ISRO do definitely hope that HAMSAT VO-52 worked
> tirelessly and was a good friend to the Amateur Radio fraternity
> around the world," he said. "We are sure that HAMSAT was loved by
> all who worked through her. Though, we are deeply saddened by the
> loss of HAMSAT VO-52, she will never be forgotten."
> 
> The VO-52 satellite was one of the most popular SSB/CW satellites
> during its lifetime. One of its transponders was developed by Indian
> radio amateurs with assistance from ISRO and AMSAT-India. The second
> transponder was developed by William Leijenaar, PE1RAH, a radio
> amateur and graduate student from the Netherlands.
> 
> VU2MWY said that VO-52 had completed nearly 50,000 orbits before it
> was decommissioned. "Since 11 July, every best possible effort has
> been put in by the spacecraft controllers here in ISTRAC Bangalore
> to revive her back to life and to help her with workload, so she
> won't be swamped when she returns, but with no luck," he said. "[W]e
> thank each and everyone who contributed to the great success of
> HAMSAT."
> 
> VO-52 had been designed to remain operational for just a year, but
> it exceeded expectations by continuing to run for more than 9 years.
> NNNN
> /EX
 		 	   		  
-------------- Próxima Parte ----------
Um anexo em HTML foi limpo...
URL: <http://list.araucariadx.com/pipermail/araucaria/attachments/20140722/2b155073/attachment.html>