Author Topic: CZ-5 - Tianwen-1 TW-1 Mars mission - Wenchang - July 23, 2020 (04:41 UTC)  (Read 70385 times)

Offline shijiav

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http://9ifly.spacety.com/forum.php?mod=viewthread&tid=93048&page=84#pid756198



This post on the Chinese 9ifly forum says (Google translation): 

"The landing site was mentioned in the article "Running the Fire: Flying to "Utopia"" published by the China Aerospace Journal.

The preferred landing site for the "Tianwen-1" Mars exploration mission is located at the southern end of the Martian Utopia Plain, which belongs to the lowland unit of the late Hesperia period (110.318 degrees east longitude, 24.748 degrees north latitude). The alternative location is located in the southeastern part of the Utopia Plain, in the Erythian Volcanic magma flow zone, close to the entrance of the Erythian Volcanic magma into the Utopian Plain."

I have not been able to find the article but if anyone has a source I would like to know about it.
there you go
https://mp.weixin.qq.com/s?__biz=MzA5NTgxNTQzMA==&mid=2650566654&idx=1&sn=a5abe98978d0fb3ec5f473a92fbd59ba&chksm=88b15d97bfc6d4819ffe87d8a3af51bd70a9bcdec73fdd5dcec6f7af3705bd45e041e68d036a&scene=4#wechat_redirect
EZ for a person who is fluent in Chinese to find such thing though....

Online Steven Pietrobon

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Landing sequence. Looks like it will go into a polar orbit.
« Last Edit: 07/28/2020 07:20 am by Steven Pietrobon »
Akin's Laws of Spacecraft Design #1:  Engineering is done with numbers.  Analysis without numbers is only an opinion.

Offline Phil Stooke

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Thanks!  Incidentally, for 'Erythian' read 'Elysium'.



Offline wahaha

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https://www.globaltimes.cn/content/1195927.shtml

China’s Mars probe Tianwen-1 leaves Earth’s gravitational field, sends back photo of Earth, moon: CNSA
Photo: Courtesy of China National Space Administration

Tianwen-1, China’s first Mars probe, has smoothly flown more than 1.5 million kilometers away from Earth, leaving Earth’s gravitational field, and entering planned interplanetary orbit, the China National Space Administration (CNSA) said on Tuesday.

According to a press release the CNSA provided to the Global Times on Tuesday, the spacecraft is operating properly. Flight control and data communication is underway in an orderly and clear fashion.

The probe also sent a picture featuring the Earth and moon upon looking back from some 1.2 million kilometers away from Earth, after it started its optical navigation instruments on Monday.

The Earth and moon both appear in a crescent shape, as per the picture.

China successfully launched the probe via a Long March-5 carrier rocket from Wenchang Space Launch Center located in South China’s Hainan Province on Thursday.

The probe mission aims to achieve orbiting, landing and roving on the Red Planet all in one go. Tianwen-1 is scheduled to land on Mars around May 2021.

Offline plutogno

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the spacecraft has successfully launched, I think it's time we move the discussion to the topic in the Space Science forum https://forum.nasaspaceflight.com/index.php?topic=35045.0

Offline ianvill

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In a Local news story...

Quote
IN PHOTOS: Aircraft debris found in Eastern Samar town

CEBU CITY, Philippines – Huge chunks of metal believed to be debris coming from a commercial airplane were found on a beach in Mercedes town in Eastern Samar last Wednesday, August 5.

Netizen Juvimar Lira posted on his Facebook page photos of the debris that were washed ashore at the Anuron beach in Mercedes, Eastern Samar province on Wednesday, August 5.

Lira said the large metal pieces resembled parts of a commercial plane.

He said that authorities have visited the Anuron beach on Thursday, (August 6), to secure and inspect the debris.

...

Source: https://cebudailynews.inquirer.net/331812/in-photos-aircraft-debris-found-in-eastern-samar-town

I believe these are parts of the Tianwen-1 Fairing Section getting washed ashore.

« Last Edit: 08/07/2020 01:00 pm by ianvill »

Offline GELORD

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与战士站岗、炊事员做饭一样,航天员是一种职业,工作就是飞行。

Offline Liss

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http://www.xinhuanet.com/english/2020-08/20/c_139305763.htm

Quote
China's Mars probe over 8 mln km away from Earth
Source: Xinhua| 2020-08-20 21:31:17|Editor: huaxia

BEIJING, Aug. 20 (Xinhua) -- China's Mars probe Tianwen-1 has traveled more than 8 million km away from Earth and is functioning normally, according to the Lunar Exploration and Space Program Center of the China National Space Administration Thursday.
As of 11:20 p.m. Wednesday, the Mars probe has traveled 8.23 million km away from Earth. Starting from 10:20 p.m. Wednesday, multiple payloads on the Mars probe, including Mars Magnetometer, Mars Mineralogy Spectrometer and High-resolution Camera, have completed self-check to confirm that they are in normal condition.
Medium and high-resolution cameras will be used for imaging the Mars surface and conducting research on the topography and geological structure of the planet's surface. The Magnetometer will detect the magnetic environment on Mars, and the Mineralogy Spectrometer will be used to analyze the composition and distribution of minerals on Mars.
China launched the Mars probe on July 23, designed to complete orbiting, landing and roving in a single mission, thus taking the first step in its planetary exploration of the solar system.
The Mars probe is expected to reach the red planet around February 2021. After entering the orbit, it will spend another two to three months surveying the candidate landing sites before landing. Enditem
This message reflects my personal opinion based on open sources of information.

Offline eeergo

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Offline Jrcraft

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Some stills of the deployable camera from the video.

Offline Dalhousie

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Some stills of the deployable camera from the video.

Looks like it is tumbling at quite a rate.  How were the photos obtained from this?
"There is nobody who is a bigger fan of sending robots to Mars than me... But I believe firmly that the best, the most comprehensive, the most successful exploration will be done by humans" Steve Squyres

Offline Phil Stooke

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Sounds like they took more pictures and only 2 showed the spacecraft.  They put a camera at each end to double their chances of getting a picture.  A bit awkward but it worked, and no need to use complicated stabilization methods. 

Offline wahaha

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"Hi, Mars" is a short scientific documentary that tracks and records China's first Mars exploration program "Tianwen-1". This series consists of 10 episodes, each 5 minutes, focusing on the launch of the Mars rover. It took 40 days to take in-depth photos of the preparations and daily life of researchers at the Wenchang launch base in Hainan.


Offline eeergo

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Offline GELORD

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China's Mars probe over 100 mln km away from Earth

Source: Xinhua | 2020-12-15 09:32:55 | Editor: huaxia
http://www.xinhuanet.com/english/2020-12/15/c_139590242.htm

BEIJING, Dec. 15 (Xinhua) -- China's Mars probe Tianwen-1 is currently more than 100 million km away from Earth and is functioning normally, according to the China National Space Administration on Tuesday.

As of 9 p.m. on Monday (Beijing Time), the Mars probe had flown in space for 144 days and traveled more than 360 million km. It was more than 100 million km away from Earth and about 12 million km away from Mars.

The Mars probe will likely be about 190 million km away from Earth when it reaches the vicinity of Mars.

Since it was launched on July 23, the Mars probe has captured an image of both Earth and the moon and taken selfies. It has carried out three orbital corrections, a deep-space maneuver and self-checks on multiple payloads.

It will conduct several orbital corrections and will likely decelerate to enter the Mars orbit in mid-February next year, according to the administration.
与战士站岗、炊事员做饭一样,航天员是一种职业,工作就是飞行。

Offline eeergo

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Updates and discussions for Mars Orbit Insertion, descent, and landing should proceed in the Tianwen-1 thread in the Space Science sub-forum.
https://forum.nasaspaceflight.com/index.php?topic=35045.0
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Offline Rondaz

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China's Mars orbiter captures 'selfie' videos & north pole views


 

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