Author Topic: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)  (Read 200198 times)

Offline SciNews

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #100 on: 04/12/2017 05:12 pm »
Chang'e-5 will return samples from the Moon

Chang'e-5 is scheduled to enter the launch site in August, preparing for its launch by Long March-5 around November 2017.

Offline savuporo

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #101 on: 05/30/2017 10:05 pm »
ESA tracking collaboration (re-)confirmed

http://gbtimes.com/china/esa-assist-chinas-change-5-mission-moon-and-back

Quote
“On the ESA side the cooperation has allowed us to gain experience on Moon activities, including tracking of the critical landing phase for Chang'e3 and for the reentry of the Chang'e-5T1 capsule, which required also delivery of high precision tracking information for localisation of the lander and of the capsule on the surface. This is extremely useful experience in view of future ESA and international activities on the Moon.”
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Offline wahaha

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #102 on: 06/06/2017 12:09 pm »
Landing Site:

Offline Phil Stooke

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #103 on: 06/06/2017 02:59 pm »
A lot more detail of this landing site in reply #81 in this thread.

Offline Satori

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Online Steven Pietrobon

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #105 on: 06/09/2017 10:18 am »
China discloses Chang'e 5 lunar probe landing site.

From the article. Attached is a corrected and enlarged version of the landing map.

"China's Chang'e 5 lunar probe is expected to land in the Mons Rumker region, and to take moon samples back to earth at the end of the year, according to a Chinese space official."

Here's a good image showing where Mons Rumker is, but that is quite far from what is shown in the screen capture. The location seems to be between Foucault Crater and Sharp Crater.
« Last Edit: 06/09/2017 10:24 am by Steven Pietrobon »
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Offline Phil Stooke

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #106 on: 06/23/2017 01:23 am »
Here's something I am putting together for a blog post. Clementine color ratio superimposed on the map I made earlier (see post #81 in this thread). The gray strip is missing Clementine data. A few small data gaps elsewhere have been cosmetically patched (since this product is not for scientific analysis). The landing site will be in the blue unit.


Offline zubenelgenubi

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #107 on: 07/04/2017 04:54 pm »
Does anyone here know when the (assumption correct?) monthly lunar launch windows for Chang'e-5 are?

Also, speculation question: Would Chang'e-5 remain as the next payload for Long March-5, or would another payload substitute for the CZ-5 return to flight?
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Offline Phil Stooke

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #108 on: 07/04/2017 06:45 pm »
CE5 will almost certainly be delayed.  There will have to be at least one additional test flight to certify the launch vehicle, maybe two, so the delay is likely to be for a year or so.  Plutogno said elsewhere that CE4 might now fly before CE5 and I think he may be right.

I think the original launch was targeted for very late November this year.

Offline Star One

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #109 on: 07/04/2017 07:44 pm »
CE5 will almost certainly be delayed.  There will have to be at least one additional test flight to certify the launch vehicle, maybe two, so the delay is likely to be for a year or so.  Plutogno said elsewhere that CE4 might now fly before CE5 and I think he may be right.

I think the original launch was targeted for very late November this year.

I just wondered if testing the Long March 5 with CE4 first might have been a better way to go?
« Last Edit: 07/04/2017 07:44 pm by Star One »

Offline zubenelgenubi

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #110 on: 07/04/2017 08:02 pm »
CE5 will almost certainly be delayed.  There will have to be at least one additional test flight to certify the launch vehicle, maybe two, so the delay is likely to be for a year or so.  Plutogno said elsewhere that CE4 might now fly before CE5 and I think he may be right.

I think the original launch was targeted for very late November this year.

I just wondered if testing the Long March 5 with CE4 first might have been a better way to go?

Looking at Gunter's Space Page, none of the other lunar missions for the next 1 or 2 years, as they are currently designed, appear to need the capabilities of CZ-5.

CE-4 is launching separately from the CE-4 Relay orbiter.  I guess it's more trouble than it's worth, at this late date, to integrate both payloads for a CZ-5 launch.  But, that's my opinion as an enthusiast.
« Last Edit: 07/04/2017 08:03 pm by zubenelgenubi »
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Offline Phil Stooke

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #111 on: 07/04/2017 08:08 pm »
Testing a new launch vehicle with a precious lunar probe is not a good idea at all.  Test it with something you can afford to lose.   

Offline Star One

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #112 on: 07/04/2017 08:26 pm »
Testing a new launch vehicle with a precious lunar probe is not a good idea at all.  Test it with something you can afford to lose.   

I meant as far as testing CZ-5 in a mission to the moon it would be better to do this first with CE4 than CE5.

Offline savuporo

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #113 on: 07/04/2017 09:39 pm »
Testing a new launch vehicle with a precious lunar probe is not a good idea at all.  Test it with something you can afford to lose.   

Unless the calendar year is late 50ies or early 60ies. Then just go ahead and build multiple spares, as a good portion of the launched probes will never get to TLI
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Offline zhangmdev

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #114 on: 07/04/2017 11:16 pm »
There will have to be at least one additional test flight to certify the launch vehicle, maybe two, so the delay is likely to be for a year or so. 

China almost never do RTF test/re-certification flight after failures. Second CZ-2E was an embarrassment. First CZ-3B was a disaster. First and second DFH-4 bus were failures. They just fixed the bug and carried on.

Additional test flights could delay CZ-5B debut, Mars 2020 mission, Space Station modules, etc down the road.

Offline Phil Stooke

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #115 on: 07/05/2017 12:21 am »
OK, that's good for the schedule then!  I hope it all works out well.  I'm more cautious than that, but I am not running a lunar exploration program.

Offline frensel

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #116 on: 07/05/2017 01:40 am »
(unofficial news) According to the weibo of ChinaSpaceflight, Chang'e 5 might be delayed to 2019.
« Last Edit: 07/05/2017 01:40 am by frensel »

Offline Lars-J

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #117 on: 07/06/2017 01:43 am »
Based on reports from a chinese forum, the next CZ-5 launch has been delayed into 2018 sometime. And given the rumors of a Chang'e-5 to 2019, the 2018 mission (or more than one) will have other payload(s).

Offline luhai167

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #118 on: 07/10/2017 09:25 pm »
If CE5 is delayed to 2019 due to CZ5 problems, we'll have CE4 to launch before CE5,. I wonder if this will change the landing location for CE5, the relay sat should be in place and tested by CE4.

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Offline Phil Stooke

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Re: Chang'e-5 - CZ-5 - Wenchang - November 23, 2020 (20:30 UTC)
« Reply #119 on: 07/10/2017 09:53 pm »
I don't think this is likely.  The young basalts near Mons Rumker are a very important goal for CE5.  The second sample return mission, CE6, is much more likely, in my opinion, to go to a farside site using the CE4 infrastructure.  There is now talk of two polar landings after CE6, in addition.

Tags: Chang'e-5 
 

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