Earlier quoted context omitted.
Better be safe than sorry. Uncontrollable entry is actually uncontrollable and anything could happen.
Such decisions cannot be made in a binary, absolutist way. Risk is reduced to some minimal level, not to zero. The risk here was very low.
New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
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Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#62This is deeply irresponsible by the CSNA and is a disaster just waiting to happen on the ground. Is it laziness on the part of their flight team or just crass disregard for others safety?
It's economically hardnosed of them. It's on average cheaper to just take the chance and pay off damages if someone is injured or killed. Remember, the highest chance of fatality will be in densely populated lower latitude countries where the monetary cost of killing someone is lower.
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#63Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#64Earlier quoted context omitted.
Such decisions cannot be made in a binary, absolutist way. Risk is reduced to some minimal level, not to zero. The risk here was very low.
And you know this risk was low because? Are you saying that you had more information on this than those agencies tracking the reentry? Otherwise you are speculating.
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#65Earlier quoted context omitted.
Dumping 20 tons of metal from orbit isn't a "calculated risk" its sloppy and dangerous. They could have built the rocket using 50 years of experience knowing this could be an issue, instead they just lie and say it will burn up. They already dropped one on a village.
the real issue is “what is the probability of human injury or death?” Is it 1% per launch? 0.01% 0.000001% The area of the earth’s surface occupied by humans (not their stuff, but the people themselves) is around 8000 km^2 (1m^2 per person) out of a total Earth surface area of 510 million km^2. so the probability is around 1.6E-5 or 0.0016% per launch. This obviously doesn’t account for the specific trajectory or pop…
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#66My flight from the Canary Islands to Portugal was delayed for ~2 hours because of this. Everyone was a bit on edge and it seems extremely irresponsible, dangerous, and wasteful.
That's a major overreaction.
[1] https://www.space.com/nasa-esa-space-chiefs-condemn-china-ro...
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#67This is deeply irresponsible by the CSNA and is a disaster just waiting to happen on the ground. Is it laziness on the part of their flight team or just crass disregard for others safety?
>China's defiance of this norm has resulted in some horrific scenes as its boosters have periodically crashed into villages.
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#68Earlier quoted context omitted.
It's economically hardnosed of them. It's on average cheaper to just take the chance and pay off damages if someone is injured or killed. Remember, the highest chance of fatality will be in densely populated lower latitude countries where the monetary cost of killing someone is lower.
The won’t even pay for any damages. They would never allow one of these to reenter over US airspace or other large, powerful countries. But if it falls in the middle of some small country, tough luck getting paid for damages.
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#69Earlier quoted context omitted.
It's economically hardnosed of them. It's on average cheaper to just take the chance and pay off damages if someone is injured or killed. Remember, the highest chance of fatality will be in densely populated lower latitude countries where the monetary cost of killing someone is lower.
The won’t even pay for any damages. They would never allow one of these to reenter over US airspace or other large, powerful countries. But if it falls in the middle of some small country, tough luck getting paid for damages.
Re: New Long March 5B Uncontrolled Reentry Tracked by Aerospace's Experts
#70My flight from the Canary Islands to Portugal was delayed for ~2 hours because of this. Everyone was a bit on edge and it seems extremely irresponsible, dangerous, and wasteful.