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#80
by
beidou
on 30 Jul, 2015 19:44
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It's just that the Chinese are really frustrating...But them hiding the information like that seems like they want to hide something. I'm really frakked off on the communication front with them.
If you dislike the Chinese and what they are doing so much, just don't pay attention to and ignore them!
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#81
by
input~2
on 30 Jul, 2015 20:07
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#82
by
Langley
on 30 Jul, 2015 20:23
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More on names:
JSpOC/NORAD has decided to call the satellites BeiDou-3 M1 and M2:
BEIDOU-3 M1
1 40748U 15037A 15210.21958105 -.00000017 00000-0 00000+0 0 9997
2 40748 054.9770 077.1714 0118477 176.9851 357.5125 01.82960043 77
BEIDOU-3 M2
1 40749U 15037B 15210.13057922 -.00000017 00000-0 00000+0 0 9996
2 40749 054.9856 077.1634 0011546 344.4650 157.4299 01.86554538 73
Looks like M2 has settled into its orbital slot and M1 is still drifting to its.
-- Richard Langley
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#83
by
baldusi
on 31 Jul, 2015 04:52
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It's just that the Chinese are really frustrating...But them hiding the information like that seems like they want to hide something. I'm really frakked off on the communication front with them.
If you dislike the Chinese and what they are doing so much, just don't pay attention to and ignore them!
You deleted the part where I said that I admire and like to write about them. I've written or re-written every Wikipedia article about civilian Chinese rocket engines. I've re-written the Long March 1/D articles and I was trying to get individual articles about the Beidou satellites like I've done for the Uragan and I'm working on the Galileo. I even wanted to defend their deep space network station here in Argentina that was attacked for political reasons. But I just can't because the Chinese government simply won't make the information available. Not even in Chinese.
If you consider that when someone wants to be your fan you have to shush him away, then I'm really rooting for the wrong team here. And this is directly related to Beidou which has one of the correction stations here in Neuquén.
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#84
by
beidou
on 09 Aug, 2015 18:22
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Interestingly enough, a S-band signal will be validated on this satellite pair.
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#85
by
Liss
on 17 Aug, 2015 12:43
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Well, it is known that the four previous MEO satellites used to occupy slots A7, A8, B3, B4 (unfortunately M5 seems to be deorbited by now).
But do anybody know which pair went to which plane -- and hence, are M1-S and M-2S in slots B5 and B2, or A1 and A6, or somewhat else?
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#86
by
Langley
on 17 Aug, 2015 13:00
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"(unfortunately M5 seems to be deorbited by now)"
Although M5 has not been heard from by stations of the International GNSS Service for several months now, it has not been shifted to a graveyard orbit according to JSpOC/NORAD tracking:
BEIDOU M5
1 38774U 12050A 15227.45076495 -.00000002 00000-0 00000+0 0 9996
2 38774 054.7481 196.3631 0033559 176.7550 183.2246 01.86251408 19950
The orbital period (01.86251408) is close to the standard.
Later today, I'll post a plot of the orbital positions of the BeiDou MEO satellites so that you can see where the new ones are.
-- Richard Langley
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#87
by
Liss
on 17 Aug, 2015 13:08
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"(unfortunately M5 seems to be deorbited by now)"
Although M5 has not been heard from by stations of the International GNSS Service for several months now, it has not been shifted to a graveyard orbit according to JSpOC/NORAD tracking:
Richard, I was speaking of a low-scale deorbit as you may see from the image attached. Nevertheless, in six months M5 did shifted some 14° from its slot which seems to be significant, especially in the absense of the navigation signals.
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#88
by
Galactic Penguin SST
on 17 Aug, 2015 13:40
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Well, it is known that the four previous MEO satellites used to occupy slots A7, A8, B3, B4 (unfortunately M5 seems to be deorbited by now).
But do anybody know which pair went to which plane -- and hence, are M1-S and M-2S in slots B5 and B2, or A1 and A6, or somewhat else?
According to Chinese forum members using NORAD TLEs, they are now at slot A6 and A1 respectively.
In other news,
European observers have now picked up navigation signals from the two satellites. M1-S is on PRN34, M2-S on PRN33 (and I1-S is on PRN31).
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#89
by
Liss
on 17 Aug, 2015 15:53
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Thank you, Galactic Penguin. I figured out how to calculate these positions from times of equator crossings of the satellites.
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#90
by
Langley
on 18 Aug, 2015 02:47
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"Later today, I'll post a plot of the orbital positions of the BeiDou MEO satellites so that you can see where the new ones are."
See attached plot. Satellites coloured red are considered to be currently unheathly and unusable for navigation.
-- Richard Langley
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#91
by
Satori
on 18 Aug, 2015 08:15
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#92
by
beidou
on 18 Aug, 2015 11:31
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#93
by
Satori
on 18 Aug, 2015 11:39
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#94
by
beidou
on 18 Aug, 2015 18:50
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From Xinhua, Beidou satellites begin autonomous operation in space.
I don't this (autonomous operation) is true - it's far from complete.
The article is referring to the two satellites recently launched, not the entire navigation network.
I knew, it was just an experiment, not operation. Now You know how everything can be exaggerated in Chinese media reports.
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#95
by
input~2
on 28 Aug, 2015 14:46
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