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So three ones, two different models, one in a different location. These are like... basics, no?
by lionkor 2y ago
So three ones, two different models, one in a different location. These are like... basics, no?
- ricardobeat 2y agoIf you multiply every critical component by 3x there will be no room left for anything else.
- lionkor 2y agoWell the way they did it (twice) means they had space for other stuff, and of course also failed because they didn't have enough redudancy
- uoaei 2y agoslippery slope fallacy. just do engineering good
- pclmulqdq 2y ago2n + 1 is a basic minimum amount of redundancy for anything critical in a high-value space mission.
- adastra22 2y agoThis isn't a high-value space mission.
- pclmulqdq 2y agoThe price of a ride to the moon alone would make this "high-value." Cubesats are an example of when you can get away with no redundancy, but this is not a cubesat.
- adastra22 2y agoThis is best compared to being a lunar landing cubesat. IM is an order of magnitude cheaper than a comparable NASA lander. Cheap is the point, and cheap carries with it some concessions to risk.
- pclmulqdq 2y ago$1M was the amount they spent on the lander. If I recall correctly, they got a ride to the moon for free. Delivering that amount of mass to the moon is worth O($10M). It seems incentives were not properly aligned for this group. I should also point out that you can fly a scientific mission on a 1U cubesat for ~$100k all in (including launch cost), which puts it in a very different regime.
- ricardobeat 2y agoThe first moon landing cost $300 billion+ in today's dollars.
- pclmulqdq 2y agoYeah, this is not that, though. We know how to get to the moon, and a small probe is lighter than 3 people plus a vehicle that allows them to make a return trip. This launch, which had a few other payloads, too, reportedly cost NASA $62 million.
- adastra22 2y agoGetting to the moon is vastly more expensive. 40x is the multiplier that is typically used in the industry. Prior to cancellation, NASA spent $433M on the VIPER lander + rover--NOT inclusive of launch costs. $1m is crazy cheap.
- pclmulqdq 2y ago$1M is not the full price of this mission. $1M is the price of the lander only. They were given a ride on a rocket whose total bill was $62.5 million (just for the launch, but spread among 4 missions). When you spend $1 million but get $10 million of stuff for free, it's not really a "$1 million project."