NASA’s Perseverance Mars rover
Discussion
Apparently its moved about 70m so far.
You can see its path so far if you zoom in on the map.
https://mars.nasa.gov/mars2020/mission/where-is-th...
You can see its path so far if you zoom in on the map.
https://mars.nasa.gov/mars2020/mission/where-is-th...
Fundoreen said:
This must be a nightmare of sweaty palms and tedium at nasa. They must roll it a few feet then study the surrounding carefully before the next movement of a few feet. You could direct a blind man easier.
How long does the power supply last?
Decades.How long does the power supply last?
RTGs can supply power for at least 40 years. The rover will break way before the power runs out.
Rovers unreliable?
Sojourner was designed to last 7 days and lasted 85. It only weighed 11kg, a tiny little thing. Spirit and Opportunity were designed to last for 90 days. Spirit lasted 6 years, but Opportunity lasted 15 years, having driven 28 miles. Curiosity landed in August 2012 and has trundled over 15 miles so far.
They have been using it to develop autonomous pathing software, which Perseverance is also using. Initially they will only do very simple tasks, to check out motor and sensor performance etc, and the people who own the various experiments on-board will be doing something similar. They won't just jump into full automatic control, there is no great rush. Eventually they will work out how far they can trust the software, and probably just let it cruise between target points like Opportunity did.
Sojourner was designed to last 7 days and lasted 85. It only weighed 11kg, a tiny little thing. Spirit and Opportunity were designed to last for 90 days. Spirit lasted 6 years, but Opportunity lasted 15 years, having driven 28 miles. Curiosity landed in August 2012 and has trundled over 15 miles so far.
They have been using it to develop autonomous pathing software, which Perseverance is also using. Initially they will only do very simple tasks, to check out motor and sensor performance etc, and the people who own the various experiments on-board will be doing something similar. They won't just jump into full automatic control, there is no great rush. Eventually they will work out how far they can trust the software, and probably just let it cruise between target points like Opportunity did.
Blackpuddin said:
I think he meant the other Rovers.
They were pretty reliable too.Most of these missions are set with a minimum operational life of 90 days.
Spirit worked for 2,269 days
Opportunity worked for 5,498
The very first Mars rover was Sojourner. This was a very basic, shoe box sized "proof of concept" vehicle designed to work for a minim of 7 days. It actually kept going for 85 days.
The Americans have never tried to land an automated rover on the moon. The only rovers they used were the three manned Lunar Rover Vehicles used on Apollo 15, 16 and 17 which by and large, worked well for the three days of each mission.
The Russians landed two unmanned lunar rovers called Lunokhod back in 1970 and 1973. They were remote controlled from earth and actually worked quite well.
The Chinese have landed two small rovers on the moon in recent years. They also worked quite well although they ere also proof of concept test vehicles as much as pure scientific research machines. One of them landed on the far side of the moon - the first man made object to do so.
So, on the whole, the rovers that have been landed on the moon and Mars have worked quite well.
Not sure if it has already been mentioned but this is a really interesting doc on the rover missions. https://www.imdb.com/title/tt6279452/ It's available on Disney+ am sure it is elsewhere too.
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