Mars rover Opportunity more than 40 times the planned service life
This year, the Opportunity rover celebrates its 12th anniversary on the red planet. The rover was landed on January 24, 2004 and is still in operation.
Rover "Opportunity" landed in the crater of Eagle, on the plateau of Meridian. Currently, Opportunity is located in the area of the crater Endeavor, thus passing more than 40 km from its original position:
NASA / JPL / Cornell University, Maas Digital LLC - photojournal.jpl.nasa.gov/catalog/PIA04413
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The rover is controlled by two computers based on the CompactPCI standard, designed and built by engineers from BAE Systems.
When Opportunity landed, the NASA team thought that the harsh Martian climate would make it inoperative for several months. The planned lifetime of the rover was about 90 days. But the rover, receiving energy only from solar panels, is still collecting data.
The atmosphere of Mars is more rarefied than the air envelope of Earth, and 95.9% consists of carbon dioxide, about 1.9% is nitrogen and 2% argon. The oxygen content is 0.14%. The average atmospheric pressure on the surface is 160 times less than that of the Earth’s surface.
The average temperature on Mars is much lower than on Earth - about −40 ° C. Under the most favorable conditions in the summer, in the daytime half of the planet the air warms up to 20 ° C - quite acceptable temperature for the inhabitants of the Earth. But on a winter night the frost can reach −125 ° . At winter temperatures, even carbon dioxide freezes, turning into dry ice.
CompactPCI is a viable and important technology for a wide range of applications. Computing modules, made according to the CompactPCI standard, are used to build satellites and other space applications, thus proving their reliability and performance.
Rover "Opportunity" landed in the crater of Eagle, on the plateau of Meridian. Currently, Opportunity is located in the area of the crater Endeavor, thus passing more than 40 km from its original position:
NASA / JPL / Cornell University, Maas Digital LLC - photojournal.jpl.nasa.gov/catalog/PIA04413
')
The rover is controlled by two computers based on the CompactPCI standard, designed and built by engineers from BAE Systems.
When Opportunity landed, the NASA team thought that the harsh Martian climate would make it inoperative for several months. The planned lifetime of the rover was about 90 days. But the rover, receiving energy only from solar panels, is still collecting data.
The atmosphere of Mars is more rarefied than the air envelope of Earth, and 95.9% consists of carbon dioxide, about 1.9% is nitrogen and 2% argon. The oxygen content is 0.14%. The average atmospheric pressure on the surface is 160 times less than that of the Earth’s surface.
The average temperature on Mars is much lower than on Earth - about −40 ° C. Under the most favorable conditions in the summer, in the daytime half of the planet the air warms up to 20 ° C - quite acceptable temperature for the inhabitants of the Earth. But on a winter night the frost can reach −125 ° . At winter temperatures, even carbon dioxide freezes, turning into dry ice.
CompactPCI is a viable and important technology for a wide range of applications. Computing modules, made according to the CompactPCI standard, are used to build satellites and other space applications, thus proving their reliability and performance.
Source: https://habr.com/ru/post/302560/
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