Tianwen-1- Development, China's 2020 Mission |
Tianwen-1- Development, China's 2020 Mission |
Jun 17 2016, 09:20 AM
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#31
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Senior Member Group: Members Posts: 1729 Joined: 3-August 06 From: 43° 35' 53" N 1° 26' 35" E Member No.: 1004 |
lots of papers on Mars exploration in the latest issue of the Chinese Journal of Deep Space Exploration (in Chinese, of course)
http://jdse.bit.edu.cn/sktcxben/ch/reader/...mp;quarter_id=2 |
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Aug 24 2016, 12:10 PM
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#32
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Newbie Group: Members Posts: 8 Joined: 5-September 08 Member No.: 4329 |
Hi - A few news outlets are carrying stories about the 2020 Chinese Mars rover.
This one talks about "13 payloads" - http://www.scmp.com/news/china/policies-po...ed-mission-mars From the article: QUOTE The probe will carry 13 payloads including a remote sensing camera and a ground penetrating radar which can be used to study the soil, environment and atmosphere of Mars. It can also study the distribution of water and ice and the planet’s inner structure. Does anyone have more information, or links to public documents about what these payloads are? |
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Aug 24 2016, 11:31 PM
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#33
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Member Group: Members Posts: 291 Joined: 29-December 05 From: Ottawa, ON Member No.: 624 |
Nothing concrete on the experiment package that I could find. I'm wondering if the lander will act as a stationary laboratory, or at least photograph the rover.
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Aug 25 2016, 01:02 AM
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#34
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Senior Member Group: Members Posts: 2106 Joined: 13-February 10 From: Ontario Member No.: 5221 |
Interesting that the egress is the same as the lunar rovers (two thin rails like a ramp). They look so fragile! Though to be fair so do airbags and skycranes until one sees them in operation.
I do like the 'wings' in the style of MER, aesthetics is always helped by symmetry.... |
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Jun 28 2018, 12:32 PM
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#35
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Member Group: Members Posts: 255 Joined: 28-October 12 Member No.: 6732 |
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Apr 24 2020, 03:19 AM
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#36
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
Is this the only thread we have on this mission? Time for an update. Launch in July, and now a name.
From a thread on the 9ifly forum: http://www.9ifly.cn/thread-93048-6-1.html ------------------- China News Network 2 minutes ago from Weibo weibo.com [Scheduled! # China ’s first Mars exploration mission named Tianwenyihao #] April 24 is the fifth “Chinese Space Day”, the name of China ’s first Mars exploration mission and the mission logo will be launched at the 2020 China Space Day Announced on. The Chinese planetary exploration mission was named "Tianwen" series, the first Mars exploration mission was named "Tianwen-1", and the subsequent planetary missions were numbered sequentially. According to reports, the name is derived from Qu Yuan ’s long poem "Questions of Heaven"*, which expresses the tenacity and perseverance of the Chinese nation in the pursuit of truth, and embodies the cultural inheritance of the exploration of nature and cosmic space. Endless. The mission logo symbolizing "Lan Xing Jiutian" shows the image of the unique letter "C", which brings together the multiple meanings of China's planetary exploration (China), international cooperation spirit (Cooperation), and the ability of deep space exploration into space (C3). Demonstrated the concept and attitude of China's open space cooperation. (People's Daily Client) * or 'To ask the Heavens' Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Apr 25 2020, 06:29 AM
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#37
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Merciless Robot Group: Admin Posts: 8785 Joined: 8-December 05 From: Los Angeles Member No.: 602 |
Topic renamed to reflect mission name. Thanks, Phil!
-------------------- A few will take this knowledge and use this power of a dream realized as a force for change, an impetus for further discovery to make less ancient dreams real.
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Apr 25 2020, 06:13 PM
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#38
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Junior Member Group: Members Posts: 28 Joined: 17-April 08 From: Okemos, MI, USA Member No.: 4097 |
-yihao is just how you pronounce -1 in Chinese. The written form of the mission name should be Tianwen-1.
Noted. Title changed. Thanks! |
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Jul 20 2020, 05:48 PM
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#39
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
Assuming we have a successful landing, I will be monitoring surface activities as usual in a map thread.
Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Jul 22 2020, 09:37 PM
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#40
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Member Group: Members Posts: 291 Joined: 29-December 05 From: Ottawa, ON Member No.: 624 |
I've been unable to find if the lander will be active after rover deployment. Even Andrew Jones tweeted me saying he hasn't heard of anything. I'd suspect they'd want to keep it active for a few days at least to photograph the rover. Have any of you heard otherwise?
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Jul 22 2020, 11:58 PM
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#41
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
As far as I can tell from images of the lander, there is no camera like the Terrain Camera on Chang'e 3 and 4. At most there might be small monitoring cameras which the lunar landers carried to show rover egress. It's not clear to me that there is any power on the lander after landing, at least after any batteries are exhausted. I'm assuming, possibly wrongly, that the lander is powered by the orbiter during cruise and orbit, and probably lands under battery power, and then it's done.
What we may see, then, would be one or more monitoring camera shots or videos of egress, preceded by a panorama from the rover camera and followed by a look back from the rover, but then nothing from the lander. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Jul 23 2020, 07:40 PM
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#42
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Member Group: Members Posts: 715 Joined: 22-April 05 Member No.: 351 |
As far as I can tell from images of the lander, there is no camera like the Terrain Camera on Chang'e 3 and 4. At most there might be small monitoring cameras which the lunar landers carried to show rover egress. It's not clear to me that there is any power on the lander after landing, at least after any batteries are exhausted. I'm assuming, possibly wrongly, that the lander is powered by the orbiter during cruise and orbit, and probably lands under battery power, and then it's done. What we may see, then, would be one or more monitoring camera shots or videos of egress, preceded by a panorama from the rover camera and followed by a look back from the rover, but then nothing from the lander. Phil I've interpreted no solar panels on the lander in the images as it's mission is over after it lands and deploys the ramps. There may be a power cable from the rover to the lander to allow some functions after the landing, but once the rover moves away... -------------------- |
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Jul 24 2020, 04:14 PM
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#43
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Member Group: Members Posts: 967 Joined: 15-June 09 From: Lisbon, Portugal Member No.: 4824 |
Searching Alan Boyle's twitter posts I chanced upon a post by Thomas Schumann. At the EPSC-DPS 2019 Joint Meeting the late Dr. Wei Yan gave a presentation about China's first Mars mission. One of the slides clearly shows two landing sites in Utopia Planitia. Thomas also says "As far as I've understood, the Chinese will evaluate final landing sites once in orbit."
Here is a Google Mars globe with the CTX map made available by Google (see the side bar for how to enable the CTX global map) and those two areas marked, and a closer view that shows Area A has very little coverage. However, Google has not mapped every CTX image, so other images may be available (as well as from the HiRISE camera). This is the kmz file I used to mark the areas. Tianwen_1_CandidateLandingAreas.kmz ( 876bytes ) Number of downloads: 605 Fernando |
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Jul 24 2020, 04:59 PM
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#44
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Solar System Cartographer Group: Members Posts: 10227 Joined: 5-April 05 From: Canada Member No.: 227 |
The slide with those landing sites shows two boxes and two sets of coordinates. They don't match up exactly. It's not clear which is correct. Most likely the written coordinates are correct and the drawn boxes were only approximate.
CTX now has essentially global coverage. Phil -------------------- ... because the Solar System ain't gonna map itself.
Also to be found posting similar content on https://mastodon.social/@PhilStooke Maps for download (free PDF: https://upload.wikimedia.org/wikipedia/comm...Cartography.pdf 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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Jul 24 2020, 05:38 PM
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#45
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Member Group: Members Posts: 967 Joined: 15-June 09 From: Lisbon, Portugal Member No.: 4824 |
Thank you Phil. Do keep me honest!
The boxes from my kmz are drawn with the coordinates, themselves marked as approximate, shown in the slide. The boxes seen in the slide appear to be smaller than the GE file ones. GE's CTX map does not have complete coverage, it is obvious. I have come across many CTX images not included in GE's "CTX global map" while searching for polygonal ridges for a Zooniverse project. Glad you confirm CTX coverage is now nearly complete. Cheers Fernando |
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