Tianwen-1 At Mars |
Tianwen-1 At Mars |
Feb 8 2021, 03:04 PM
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#1
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Member Group: Members Posts: 219 Joined: 14-November 11 From: Washington, DC Member No.: 6237 |
For those who haven't already seen, there is excellent work independently tracking and predicting the trajectory of Tianwen-1 by radio amateurs (using that word only technically, since they are very much pros).
The latest is predicting orbital insertion at 8 seconds before 1200 UTC on Wednesday 10 February, with a 386 km periapsis - burn starts a few minutes before that if you, like me, are planning your peanut consumption carefully this week. Plenty of details to be found at these links (even a GMAT script and Jupyter notebook, and some doppler data, for the astrodynamically inclined). https://destevez.net/tag/tianwen/ Daniel Estévez recent twitter thread with MOI images Scott Tilley recent twitter thread |
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May 10 2021, 02:31 PM
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#2
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Member Group: Members Posts: 185 Joined: 4-January 19 Member No.: 8523 |
We are entering the week distance window of the estimated landing date (17/may), from 10/may till 24/may.
As expected no info, but if they continue with the estimated dates, soon they will try the landing. https://www.uol.com.br/splash/noticias/afp/...-afp-7-dias.htm AFP international news for 7 days, land probably before May 15. "China's Tianwen-1 mission getting set to try and land Zhurong rover on Mars" https://www.abc.net.au/news/science/2021-05...nding/100101552 -------------------- "The Earth is a very small stage in a vast cosmic arena"
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May 13 2021, 01:23 PM
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#3
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Newbie Group: Members Posts: 5 Joined: 4-October 14 Member No.: 7274 |
Andrew Jones: "For a start, it is detaching from an orbiter 70 kilometres above the surface (Perseverance didn't have an orbiter). Protected by a cone-shaped heat shield, it will hurtle towards the surface at supersonic speeds before deploying a giant parachute to slow it down. This GIANT Parachute got me... how giant will it be... Curious. I don't recall telling ABC anything about altitude of separation, and certainly wouldn't have said that. Oh well! |
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Lo-Fi Version | Time is now: 13th June 2024 - 05:34 AM |
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