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#20
by
Satori
on 06 Nov, 2012 17:40
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#21
by
Satori
on 06 Nov, 2012 18:01
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I think that the article in spanish is a translation of the article published by Xinhua a few days ago.
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#22
by
Satori
on 07 Nov, 2012 20:51
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#23
by
Satori
on 07 Nov, 2012 20:56
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So, with the possible schedule launch of HJ-1C on November 12, the launch of CBERS-3 can only take place in December.
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#24
by
Satori
on 13 Nov, 2012 09:06
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According to
Opto envia à China câmera do satélite CBERS-4 (in Portuguese), the launch of CBERS-3 will take place in January 2013.
The news is about the transport of the MUX camera to China to be used on the CBERS-4 satellite.
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#25
by
Satori
on 22 Nov, 2012 08:16
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According to
CBERS-3: Lançamento Pode Atrasar Até Dois Anos, Será? (in Portuguese), the launch of CBERS-3 can be delayed until two years because of the problems encountered with the DC/DC converters. In the other hand, looks like there are strong political demands to launch the satellite as soon as possible.
The article also talks about a February 2013 launch date.
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#26
by
limen4
on 11 Dec, 2012 06:36
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#27
by
Satori
on 15 Dec, 2012 14:09
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#28
by
Satori
on 28 Dec, 2012 11:35
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On December 6, the INPE (Instituto Nacional de Pesquisas Espaciais) contracted two companies to work on the problems on the CBERS satellites.
The Mectron company is going to re-project and substitute the IN-RUSH Circuit and change the DC/DC converters on the MV1, MV2 and MV3 transponders of the TTCS subsystem on the CBERS-3 and CBERS-4 satellites.
The Equatorial Sistemas will rework the IN-RUSH Circuit of the FM1, FM2, FM3 models and will change the DC/DC converters of the models FM1 and FM2 of the SPE from the WFI subsystem of the CBERS-3 and CBERS-4 satellites.
Information about the contracts can be seen at
http://brazilianspace.blogspot.pt/2012/12/aeb-assina-quatro-novos-contratos-de.htmlSo probably we will see a larger delay on the launch of CBERS-3, but there are no official informations about this.
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#29
by
Satori
on 16 Jan, 2013 12:55
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The Brazilian Space Agency says that one of its main priorities for 2013 is the launch of CBERS-3. Nut, some specialists say that the tests and integration of the new DC/DC converters is a process that should take one and a half to two years, and that the launch should be delayed (as well as the launch of CBERS-4 schedule for 2014).
So, many think that here is a strong political pressure to launch CBERS-3! We should ask if China is willing to launch a satellite with a strong probability of failure in orbit?
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#30
by
Satori
on 18 Jan, 2013 17:15
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We now have the confirmation of the delay of the launch of CBERS-3 that will probably take place in May or June 2013 (
Falhas Técnicas Obrigam Brasil a Adiar Lançamento de Satélite com a China in Portuguese).
Interestingly, there are strong political pressures in Brazil to launch the satellite next month. I see this as a prescription for disaster and even the May or June dates are very ambitious.
Apparently, and contrary to what was said early, the CBERS-3 will still be using the DC/DC converters manufactured by the American Modular Devices Incorporated (MDI). Some converters didn't pass the tests that were made in China. Some 20 devices were sent to the US to be tested there and 12 of those converters failed the tests. MDI concluded that not all the devices had problems, so the problematic ones were replaced.
The decision to delay the launch to February was took on November 20. Now the launch is schedule to May/June period.
Lets remember that recently two Brazilian companies were contracted also to supply the DC/DC converters, but it looks like if those converters were to be used on CBERS-3 then the launch would have to be delayed almost two years because that's the time needed to rearrange and test the satellite electrical system to operate with the new converters.
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#31
by
Galactic Penguin SST
on 02 Mar, 2013 13:18
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#32
by
Galactic Penguin SST
on 03 Mar, 2013 09:42
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#33
by
Satori
on 19 Mar, 2013 17:56
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Bad news for CBERS-3
Looks like new tests made on the «new» DC/DC converters this month had very bad results.
At this time I doubt the satellite will be launched this year or if it is launched, the Brazilian part of the satellite has a great probability of failure.
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#34
by
Satori
on 10 May, 2013 18:37
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Launch of CBERS-3 is now schedule for October 2013.
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#35
by
Phillip Clark
on 11 May, 2013 06:58
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As I remember, the Brazilian contribution to the second CBERS also cause a great deal of concern and delay.
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#36
by
Satori
on 05 Aug, 2013 07:54
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Confirmation that CBERS-3 will be launched on October 2013 and CBERS-4 on 2015.
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#37
by
Satori
on 02 Sep, 2013 17:20
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Latest informations say that the launch of CBERS-3 will be not later than November 2013.
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#38
by
input~2
on 07 Sep, 2013 16:31
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#39
by
Satori
on 10 Sep, 2013 16:26
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According to the Brazilian Space Agency, the launch of CBERS-3 is scheduled for next December.
Looks like new tests made on the «new» DC/DC converters this month had very bad results.