Chang'e 5 sample return mission |
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Chang'e 5 sample return mission |
 Nov 29 2020, 09:51 PM
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#136
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Member  Group: Members Posts: 540 Joined: 17-November 05 From: Oklahoma Member No.: 557  |
Here is the article in English:
CGTN "The landing operation is expected in three days." "The sampling work and the take-off of the ascender from the lunar surface need to be completed within 48 hours ..." |
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Nov 30 2020, 03:53 AM
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#137
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 Senior Member Group: Members Posts: 1417 Joined: 26-July 08 Member No.: 4270 |
Chang'e 5 lander as seen from the orbiter. It's part of a video you can see here: https://twitter.com/rhZhao/status/1333242777971216384
Attached thumbnail(s)
-------------------- -- Hungry4info (Sirius_Alpha)
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Nov 30 2020, 03:24 PM
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#138
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 Member Group: Members Posts: 219 Joined: 14-November 11 From: Washington, DC Member No.: 6237 |
QUOTE (Thorsten Denk @ Nov 23 2020, 03:33 AM)  Possible Cháng'é 5 timeline (in UTC). From "Cosmic Penguin" on Twitter (scoll down a lot!). https://twitter.com/Cosmic_Penguin/status/1...561964041388033 ... Continuing good info from that account, here are "all critical timings of Chang'e 5 around cis-lunar space" in UTC (use scroll to see it all, I don't know another way to post here as a table) CODE TLI trajectory correction maneuvers Nov. 24 14:06 Nov. 25 14:06 Nov. 27 13:06 (*) LOI burns Nov. 28 13:06 Nov. 29 12:34 Lander separation Nov. 29 20:40 ---(we are here, when it was posted)--- Lander orbit lowering burns Nov. 30 14:23 Nov. 30 18:22 Start of lander power descent Dec. 1 14:58 **LANDING ON LUNAR SURFACE** Dec. 1 15:13 Drilling of lunar sub-surface samples Dec. 1 17:15 - 19:45 Scooping of lunar surface samples Dec. 1 21:14 - Dec. 2 19:35 **LAUNCH OF LANDER ASCENT STAGE** Dec. 3 15:10 Ascent stage solar arrays deploy Dec. 3 15:27 Ascent stage phasing burns Dec. 3 22:05 Dec. 4 08:04 Dec. 4 19:46 Dec. 5 11:54 Start ascent stage-orbiter rendezvous Dec. 5 18:14 **ASCENT STAGE-ORBITER DOCKING** Dec. 5 21:40 Completion of sample transfer Dec. 5 22:01 Orbiter/Return Capsule separation from ascent stage Dec. 6 04:35 Orbiter phasing burns 1-3 Nov. 30 23:59 Dec. 1 20:22 Dec. 2 14:42 Forward structure separation Dec. 2 19:46 Orbiter phasing burn 4 Dec. 3 03:35 (*) TCM-3 apparently was not needed. Source: https://twitter.com/Cosmic_Penguin/status/1...308275018723328 & thread (from Chinese Social media). |
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Nov 30 2020, 04:29 PM
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#139
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Solar System Cartographer Group: Members Posts: 10146 Joined: 5-April 05 From: Canada Member No.: 227 |
Repost of an old image of the landing site. The base is LRO images and Clementine false colour. the strip without colour is missing Clementine data (a few small patches of missing data elsewhere have been patched by cloning for aesthetic effect). The blue unit is the young basalt thought to be the most likely target. Mons Rumker at centre is red-brown like the highlands suggesting it is covered with a veneer of ejecta from surrounding large craters including possibly the Iridum crater.
Phil
-------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke NOTE: everything created by me which I post on UMSF is considered to be in the public domain (NOT CC, public domain) |
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Dec 1 2020, 09:06 AM
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#140
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 Member Group: Members Posts: 547 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
Am I correct to assume that Chang'e 5 is in a polar orbit, and will land on a northwards-travelling track, like Chang'e 3 ?
(whose landing site was several hundred km east of the suggested site for Chang'e 5). |
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Dec 1 2020, 09:14 AM
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#141
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 Member Group: Members Posts: 122 Joined: 3-September 12 From: Almeria, SE Spain Member No.: 6632 |
No. Cháng'é-5 is in an orbit with about 45° inclination. It's nearly "grazing" the landing site. And the direction is west-east (astronautical, left-right as seen from Earth's northern hemisphere), this means opposite of the Apollos who wanted to land with the sun in the back.
Thorsten |
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Dec 1 2020, 10:12 AM
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#142
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Member Group: Members Posts: 547 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
thank you Thorsten.
Unlike Apollo, an automatic craft does not need to worry about being dazzled by the sun in its eyes at pitch-over! |
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Dec 1 2020, 01:14 PM
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#143
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 Member Group: Members Posts: 185 Joined: 4-January 19 Member No.: 8523 |
Chang'e-5 Landing on The Moon Live Feed:
https://live.bilibili.com/21686237 https://live.media.weibo.com/live/show?id=1...c3e5cbabf451a9b Landing planned for 15:13 UTC today.
Attached thumbnail(s)
-------------------- "The Earth is a very small stage in a vast cosmic arena"
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Dec 1 2020, 01:19 PM
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#144
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Member Group: Members Posts: 122 Joined: 3-September 12 From: Almeria, SE Spain Member No.: 6632 |
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Dec 1 2020, 03:17 PM
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#145
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Member Group: Members Posts: 547 Joined: 1-May 06 From: Scotland (Ecosse, Escocia) Member No.: 759 |
Nothing happening on those links as far as I can see.
I don't imagine there is any difficulty for them to delay the landing by an orbit or two, if they need more time for technical check-out or whatever. |
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Dec 1 2020, 03:18 PM
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#146
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Member Group: Members Posts: 122 Joined: 3-September 12 From: Almeria, SE Spain Member No.: 6632 |
Seems to have been successful landing!
https://twitter.com/AJ_FI/status/1333791545078673416 |
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Dec 1 2020, 03:47 PM
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#147
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Member Group: Members Posts: 106 Joined: 25-November 04 From: Dublin, Ireland Member No.: 113 |
Oh to have a rover!!! This crater looks gorgeous! Multiple flow layers exposed?
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Dec 1 2020, 04:38 PM
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#148
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 Member Group: Members Posts: 349 Joined: 20-June 07 From: Slovenia Member No.: 2461 |
Map of the landing area with reported landing site indicated. |
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Dec 1 2020, 04:48 PM
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#149
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Senior Member Group: Members Posts: 1417 Joined: 26-July 08 Member No.: 4270 |
Well, I've identified the landing site.
Lat: ~43.05680, Lon: ~-51.91648 (I have 13 of these images, but for everyone's benefit just posted a small selection). Edit: the entirety of them are here
Simulated view from the Chang'e 5 landing site toward the southwest.
-------------------- -- Hungry4info (Sirius_Alpha)
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Dec 1 2020, 05:18 PM
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#150
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Senior Member Group: Members Posts: 1417 Joined: 26-July 08 Member No.: 4270 |
Image released from the lander looking down seconds before landing, and one right after landing.
Attached thumbnail(s)
-------------------- -- Hungry4info (Sirius_Alpha)
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