Author Topic: LIVE: Chang'e-3 lunar probe and rover Lunar Landing December 14, 2013  (Read 456997 times)

Offline belegor

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Offline AJA

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Position of Chang'e 3 w.r.t. the landing site

wow! from that map it looks like CE3 is heading to the western edge of the landing site, and into Mare Imbrium, close to crater Le Verrier instead of Sinus Iridum

Appears landing box is large enough to land on subsequent orbits if needed?  Aiming at that edge would correspond to earliest landing window.

Does it have enough fuel to have an ATO mode?

Offline Steven Pietrobon

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

Offline vyoma

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From http://live.china.org.cn/2013/12/13/coming-soon-change-3-lands-on-the-moon/:
Quote
[21:08] The lander will now descend 600 m within 20 seconds.

[21:07] The Chang’e 3 has started its 720-second power reduction.

[21:06] The downward-looking camera has started filming.

[21:04] The 7500 Newton rocket engine has been switched on.

[21:02] The rocket is working on a reduced power.

[21:00] The power descend begins.
« Last Edit: 12/14/2013 12:09 PM by vyoma »

Offline Artyom.

"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.


Offline Steven Pietrobon

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

Offline knotnic

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Don't know about ATO but doubt it.  More likely would be in case descent initiation was delayed.  Since I don't know, I will not speculate on update thread.


Offline belegor

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From the animation I have the feeling that landing will be a lot sooner than planned...

Offline Artyom.

"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.

Offline AJA

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Right, now they're saying that the descent imagery is not going to be used for landing site selection, and it's only for later data-corroboration etc.


Coming up now into terminal descent.


Offline HappyMartian

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CCTV - Discussion of beginning steep landing profile. Showing picture from two kilometers up.
"The Moon is the most accessible destination for realizing commercial, exploration and scientific objectives beyond low Earth orbit." - LEAG

Offline belegor

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Wow indeed

Offline Steven Pietrobon

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


Offline Artyom.

"Earth is the cradle of humanity, but one cannot live in a cradle forever." - Konstantin Eduardovich Tsiolkovsky.


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