Author Topic: Queqiao (Chang‘e-4 coms relay sat) - CZ-4C - XSLC - May 20, 2018 (21:28 UTC)  (Read 63615 times)

Offline zubenelgenubi

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Link to that stream: https://www.yizhibo.com/l/gFg-lYQyXLtpJFYS.html

I hope this person or persons don't get in too much trouble for providing this service to the world...thank you.
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Offline Steven Pietrobon

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Radboud Radio Lab
‏ @RadRadioLab
3 minutes ago

All systems green, rocket on track #NCLE

https://twitter.com/RadRadioLab/status/998316327197728768
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Radboud Radio Lab
‏ @RadRadioLab
40s ago

Stage separation confirmed @isis_space @ASTRON_NL #NCLELaunch

https://twitter.com/RadRadioLab/status/998317079915909125
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Andrew Jones
‏ @AJ_FI
25 seconds ago

Andrew Jones Retweeted BG2BHC

Longjiang 1 & 2 microsatellites successfully separated from launch vehicle #queqiao

Andrew Jones added,
BG2BHC
 @bg2bhc
DSLWP-A/B successfully seprated from vehicle @AMSAT @AmsatUK

https://twitter.com/AJ_FI/status/998322802498441216
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Galactic Penguin SST

Andrew Jones
‏ @AJ_FI
25 seconds ago

Andrew Jones Retweeted BG2BHC

Longjiang 1 & 2 microsatellites successfully separated from launch vehicle #queqiao

Andrew Jones added,
BG2BHC
 @bg2bhc
DSLWP-A/B successfully seprated from vehicle @AMSAT @AmsatUK

https://twitter.com/AJ_FI/status/998322802498441216

That more or less should mean the launch is successful. Confirmation pending....
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Offline JimO

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Do we know where the TLI burn should occur and if its in dark or daylight? That is, should we start looking for serendipitous ground observations of the plume?

Offline Steven Pietrobon

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Heino Falcke
‏ @hfalcke

Looks like satellite is released and solar panels deployed - now we have to wait until #Queqiao with #NCLE reaches the moon #NCLELaunch #Change4

https://twitter.com/hfalcke/status/998329415921782787
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Andrew Jones
‏ @AJ_FI
2 minutes ago

Chang'e-4: Main space programme contractor CASC confirms successful launch and insertion in lunar transfer orbit for the #Queqiao relay satellite

https://twitter.com/AJ_FI/status/998330680810573825
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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https://mp.weixin.qq.com/s/DgstuyN4_txO_W1SeZtoow

May 21 5:28, in China's Xichang Satellite Launch Center, by China Aerospace Technology Group Co., Ltd. to grasp the total development of the Chang ' e fourth relay star "Bridge" aboard the Long March fourth C launch vehicle. Satellite from the rocket into the perigee of about 200 km, apogee about 400,000 kilometers of the Earth-moon transfer orbit.
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Article by Andrew Jones.

https://gbtimes.com/china-launches-queqiao-relay-satellite-to-support-change-4-lunar-far-side-landing-mission

"China has successfully launched a lunar communications relay satellite designed to support an unprecedented mission to put a lander and rover on the far side of the Moon in late 2018, as well as carry out pioneering astronomy."
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Andrew Jones
‏ @AJ_FI
4 minutes ago

Some pics of the launch of #queqiao Chang'e-4 lunar relay satellite from Xichang (Liu Xu). https://goo.gl/riRLbF

https://twitter.com/AJ_FI/status/998338858965184513
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Steven Pietrobon

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Andrew Jones
‏ @AJ_FI
4 minutes ago

And the 448 kg Queqiao Chang'e-4 relay sat before launch

https://twitter.com/AJ_FI/status/998339540715823104
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Galactic Penguin SST

Astronomy & spaceflight geek penguin. In a relationship w/ Space Shuttle Discovery. Current Priority: Chasing the Chinese Spaceflight Wonder Egg & A Certain Chinese Mars Rover

Offline whiztech

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Offline Steven Pietrobon

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You can watch the stream of the launch using the following link. With VLC Media Player, select

Media -> Open Network Stream... -> Please enter a network URL: (link below) -> Play.

http://wscdn.alhls.xiaoka.tv/2018521/468/462/gFg-lYQyXLtpJFYS/index.m3u8

Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline frensel

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The lastest Baidu doodle is about Queqiao. One can see this logo later in http://logo.baidu.com/.

Offline SciNews

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Long March-4C launches Queqiao

Offline zandr

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21:28:49:970 UTC

Offline jcm

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Zooming in on the above you can pretty much make out the stage timings
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Jonathan McDowell
http://planet4589.org

Offline Liss

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First elset for Queqiao published -- 43470 / 2018-045A.
This message reflects my personal opinion based on open sources of information.

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