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Tianwen-1 Launch & Cruise
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post Jul 19 2020, 07:07 PM
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Launch currently scheduled for 23 Jul, time not yet announced. Please post updates here as you find them. smile.gif


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Lewis007
post Jul 20 2020, 04:02 AM
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This site says the launch is around 04:00 GMT.
http://lk.astronautilus.pl/plan.htm

It's in Polish and says: "23.07.2020 około 04:00 z wyrzutni LC101 kosmodromu Wenchang wystrzelona zostanie RN CZ-5/YZ-2, która wyniesie na trajektorię międzyplanetarną wiodącą ku Marsowi sondę Tianwen-1."

which means (Google translate)
On July 23, 2020 around 04:00, the RN CZ-5 / YZ-2 will be launched from the Wenchang spacecraft LC101, which will carry the Tianwen-1 probe to the interplanetary trajectory leading to Mars.

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post Jul 21 2020, 09:55 PM
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Good mission overview article here. 3-hr launch window opens 23 Jul/0400 GMT.


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ollopa
post Jul 22 2020, 12:45 PM
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CCTV-13 just devoted the first 10 minutes of their evening bulletin to Tianwen-1. I missed the start, so I don't know if they flagged live coverage of the launch. I recorded most of the segment, but I'm pretty sure I can't post here (moderators?). Can someone translate the commentary? I can share the file by dropbox and s/he and I can then post a summary.
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ollopa
post Jul 22 2020, 02:31 PM
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The main evening news on CCTV-1 just spent 100 seconds on Tianwen-1 without apparently mentioning a launch date or plans for live coverage. Agan, I recorded it if anyone wants to take a crack at translating?
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post Jul 22 2020, 06:33 PM
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Unfortunately, yeah, a 10-min video file would be wayyyy too large to post here, ollopa. However, please feel free to post a link to it if you can host it somewhere. How big is the 100 sec file?


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ollopa
post Jul 22 2020, 09:28 PM
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SciNews has since posted an edited version with English sub-titles: https://bit.ly/Tianwen-1

I am still interested in linking up with someone interested in collaborating in fast-turnaround translations of Chinese TV reports (including Chang'e and Tianwen)

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post Jul 23 2020, 03:01 AM
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Spaceflight Now reporting launch time is 0445 GMT, or roughly 1 hr 45 min from now as I write this. Anybody got a lead on live coverage if any is to be had?


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Ron Hobbs
post Jul 23 2020, 03:48 AM
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Alan Boyle has links to a couple of Chinese language feeds. One is showing what looks like a live picture from Wenchang.

Alan Boyle's Twitter
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Ron Hobbs
post Jul 23 2020, 04:45 AM
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Go Tianwen-1
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Explorer1
post Jul 23 2020, 04:49 AM
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Looks like they launched, according to the unofficial streams.
Now the wait begins...
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nprev
post Jul 23 2020, 06:10 AM
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Thanks for the link, Ron. That video was...uh...unique. huh.gif

Safe travels, Tianwen-1!!!


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Hungry4info
post Oct 1 2020, 10:20 AM
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Tianwen-1 deployed a camera that took images of the spacecraft en route to Mars.
There's also a .gif showing the camera deploying taken from Tianwen-1.
https://twitter.com/Cosmic_Penguin/status/1...497637351231491
Attached thumbnail(s)
Attached Image
Attached Image
 


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Marcin600
post Oct 2 2020, 10:50 PM
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This page has some information about how these selfi photos have been taken (in Chinese). [or actually: how and for what purpose wink.gif ]

There is also a rather illustrative animation.

Below are some quotes from this page - a very coarse Google translation:

"...A camera weighing only 680 grams is unlocked, and it is gradually moving away from the spacecraft at a speed of about 0.2 meters per second; while gradually moving away from the spacecraft, "Tianwen-1" with the national flag is taken from near to far. Considering that the camera may turn over as it gradually moves away, the development team designed the camera as a dual-camera to ensure that the camera can capture as many spacecraft images as possible during the turning process..."

"...The separation device enables the camera to "differentiate"; the use of color imaging, with two resolutions of 800×600 and 1600×1200, allows the image to be “clearly captured”; the use of super-strong WiFi communication that can achieve 400 meters of wireless communication allows Data can be "passed back"; the use of disposable batteries that can provide power for longer than 1 hour allows the camera to "stick it" and allows the ground to see the full picture of the "Tianwen-1"..."


"...On October 1, on the occasion of the National Day and Mid-Autumn Festival, the National Space Administration released the flight images of the "Tianwen-1" probe, and the five-star red flag was shining in space..."
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Phil Stooke
post Oct 8 2020, 06:49 AM
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A very interesting paper has just been released in the 'accepted' paper category by the Journal of Deep Space Exploration:

http://jdse.bit.edu.cn/sktcxb/en/article/d...020.20190708001

"Analysis and selection of landing areas for China 2020 Mars Mission"

It's in Chinese, but an English version will probably appear soon in another journal - that's common practice. The abstract is in English as well as Chinese.

The illustrations show the sites. 2 are in Chryse, 5 are in the Isidis region and one is in the highlands about 1000 km west of InSight. One site is in Jezero crater, but the three favoured sites (e, f and g) are in Isidis, I will make some illustrations of the sites soon, but for a start here is the Isidis set:

Attached Image


(Gale crater is at bottom right)

Phil





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... because the Solar System ain't gonna map itself.

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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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