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BeiDou-3 I2-S, CZ-3B, XSLC, September 29, 2015 (23:13 UTC)
by
beidou
on 07 Jul, 2015 18:08
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#1
by
beidou
on 09 Aug, 2015 17:27
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Very likely this will be a IGSO satellite, with a launch mass of 4.2 metric tone.
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#2
by
Skyrocket
on 09 Aug, 2015 17:51
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Very likely this will be a IGSO satellite, with a launch mass of 4.2 metric tone.
Really an IGSO? Are there two different IGSO designs, as the first 3rd generation IGSO was a smaller design launched on a CZ-3C/YZ version.
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#3
by
beidou
on 09 Aug, 2015 18:17
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Very likely this will be a IGSO satellite, with a launch mass of 4.2 metric tone.
Really an IGSO? Are there two different IGSO designs, as the first 3rd generation IGSO was a smaller design launched on a CZ-3C/YZ version.
Yes, there are two designs by two different manufactures. The smaller one is designed by CAS while this heavier one is designed by CASC. Apparently, the Chinese government wanted to introduce competitions for building BeiDou satellites, just like the "Boeing-LM" pattern for GPS. Similar to the satellite bus, there are also more than one contractors building the atomic clocks flying on the satellites.
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#4
by
Galactic Penguin SST
on 09 Aug, 2015 18:28
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Very likely this will be a IGSO satellite, with a launch mass of 4.2 metric tone.
Really an IGSO? Are there two different IGSO designs, as the first 3rd generation IGSO was a smaller design launched on a CZ-3C/YZ version.
I don't think it has been confirmed yet, but there are indeed rumors that both CAS and CAST will provide some of the BDS geosynchronous/geostationary satellites. Alas, the info above is just a rumor and I have yet to see a definite source that explicitly claims the above information.
I guess we will have to wait for more info about that.
P.S. The launch date listed is just a slightly educated guess - there has been nothing that actually points to an August launch, but the shortlist for the next launch out of Xichang is pretty short....
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#5
by
beidou
on 02 Sep, 2015 18:17
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#6
by
beidou
on 12 Sep, 2015 19:40
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#7
by
Phillip Clark
on 12 Sep, 2015 20:28
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There will be another launch from Xichang in late September, this mission will carry a secretive payload,
as indicated by people familiar with this matter.
Oh goody! This is like the 1970s again when we were guessing what their satellites were really doing.
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#8
by
beidou
on 12 Sep, 2015 20:41
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Oh goody! This is like the 1970s again when we were guessing what their satellites were really doing.
My understanding is that we don't need to know what the satellites are doing for classified payloads, this principle applies to the U.S. missions too.
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#9
by
Galactic Penguin SST
on 24 Sep, 2015 07:11
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Hmm.....the second launch out of Xichang this month is towards a 55 degree-ish inclination orbit, and will happen at morning local time.....is it BDS MEO/IGSO after all?
A2740/15 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:N2417E10608-N2446E10541-N2435E10528-N2407E10555 BACK TO START. VERTICAL LIMITS:GND-UNL. GND - UNL, 29 SEP 23:05 2015 UNTIL 29 SEP 23:47 2015. CREATED: 24 SEP 06:47 2015
Launch time is ~23:15 UTC on September 29.
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#10
by
input~2
on 24 Sep, 2015 10:54
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and also this one:
A2741/15 - A TEMPORARY RESTRICTED AREA ESTABLISHED BOUNDED BY:N1807E11151-N1845E11119-N1818E11043-N1740E11115 BACK TO START. VERTICAL LIMITS:GND-UNL. GND - UNL, 29 SEP 23:08 2015 UNTIL 30 SEP 00:03 2015. CREATED: 24 SEP 06:48 2015
Edit: A2740/15 & A2741/15 are practically identical to A2042/2015 & A2043/2015 for M1-S/M2-S launched on July 24 with CZ-3B/YZ-1
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#11
by
beidou
on 25 Sep, 2015 18:37
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I will be very surprised if this launch is a dual-MEO mission.
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#12
by
Chris Bergin
on 29 Sep, 2015 11:45
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Launch time is ~23:15 UTC on September 29.
I hate it when people ask if something is still on target? (Because someone would have said otherwise on the thread), but..........is this one still on target?
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#13
by
SmallKing
on 29 Sep, 2015 11:59
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I2S 7:13
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#14
by
input~2
on 29 Sep, 2015 16:27
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is this one still on target?
Apparently yes: NOTAMs are still active and SmallKing told us that launch of [CZ-3B] will take place tonight at 23:13 UTC with the second inclined GSO member of the Beidou-3 constelllation, called Beidou 3 I2-S
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#15
by
Galactic Penguin SST
on 29 Sep, 2015 23:02
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Nothing seen about this launch so far, but the sun has only just risen at the launch site so I'm not too surprised. I'm waiting for reports of college freshman students rushing out of their breakfast tables.....
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#16
by
Satori
on 29 Sep, 2015 23:13
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This is the unofficial launch time. Standing by for news from Xichang.
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#17
by
Galactic Penguin SST
on 29 Sep, 2015 23:22
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"Liftoff confirmed."
"Copy liftoff."
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#18
by
Chris Bergin
on 29 Sep, 2015 23:29
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#19
by
Galactic Penguin SST
on 29 Sep, 2015 23:44
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#20
by
Chris Bergin
on 29 Sep, 2015 23:46
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#21
by
Galactic Penguin SST
on 30 Sep, 2015 00:12
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Just saw some new photos that confirms that this launch is the first one to use the modified pad 3 at XSLC for LM-3B/C launches, and the first one from there since January 2012.
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#22
by
Chris Bergin
on 30 Sep, 2015 00:30
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Just saw some new photos that confirms that this launch is the first one to use the modified pad 3 at XSLC for LM-3B/C launches, and the first one from there since January 2012.
Copy that.
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#23
by
russianhalo117
on 30 Sep, 2015 00:40
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Just saw some new photos that confirms that this launch is the first one to use the modified pad 3 at XSLC for LM-3B/C launches, and the first one from there since January 2012.
do you mind posting some soon. Thanks
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#24
by
Galactic Penguin SST
on 30 Sep, 2015 00:45
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And wow Xinhua has already confirmed launch success! Launch time was indeed at 23:13 UTC.
(so the YZ-1 upper stage was not used this time)
Apparently this is the first BDS navsat to fly with a hydrogen maser clock.
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#25
by
baldusi
on 30 Sep, 2015 01:29
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And wow Xinhua has already confirmed launch success! Launch time was indeed at 23:13 UTC.
(so the YZ-1 upper stage was not used this time)
Apparently this is the first BDS navsat to fly with a hydrogen maser clock.
Does that means that the satellite will do the circularization itself? SEP maybe?
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#26
by
Galactic Penguin SST
on 30 Sep, 2015 01:53
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#27
by
Galactic Penguin SST
on 30 Sep, 2015 01:54
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And wow Xinhua has already confirmed launch success! Launch time was indeed at 23:13 UTC.
(so the YZ-1 upper stage was not used this time)
Apparently this is the first BDS navsat to fly with a hydrogen maser clock.
Does that means that the satellite will do the circularization itself? SEP maybe?
Yes, and I think it's more likely to be conventional chemical propulsion. Hence the need of a CZ-3B to launch just 1 single satellite.
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#28
by
input~2
on 30 Sep, 2015 03:40
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#29
by
input~2
on 30 Sep, 2015 03:55
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#30
by
input~2
on 30 Sep, 2015 06:28
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#31
by
input~2
on 30 Sep, 2015 09:16
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A first object has been catalogued by USSTRATCOM
40939/2015-053B in 220 x 37052 km x 55.01° (maybe CZ-3B 3rd stage)
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#32
by
input~2
on 30 Sep, 2015 14:51
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and here comes the satellite:
40938/2015-053A in 192 x 35827 km x 55.04°
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#33
by
input~2
on 30 Sep, 2015 16:05
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First stage debris fell on a car in Debao county, Guangxi province.
Apparently no casualty!
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#34
by
input~2
on 30 Sep, 2015 16:14
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#35
by
Satori
on 10 Oct, 2015 09:59
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Assuming this is a recent picture from launcher integration at Xichang, can this help to clarify the "Beidou-2" or "Beidou-3" designation?
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#36
by
Galactic Penguin SST
on 10 Oct, 2015 10:27
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Assuming this is a recent picture from launcher integration at Xichang, can this help to clarify the "Beidou-2" or "Beidou-3" designation?
Good catch! The words are "Beidou-2 Phase II GEO/IGSO satellite container"
