2021-12-06

Heading north into s é í TAH – ingenuity, the Mars helicopter continues its journey back to the initial landing site

By yqqlm yqqlm

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5e0ab7c73f8394b - Heading north into s é í TAH - ingenuity, the Mars helicopter continues its journey back to the initial landing site

NASA’s ingenuity Mars helicopter obtained this picture during its ninth flight. Flight 17 will fly over this terrain again and land near the upper right corner of the image

the 17th flight distance is about half of the 9th flight, which is one of the most challenging flights for ingenuity so far. Crossing the “s é í TAH” area of Mars Jezero crater will require at least two flights and one stopover. This stay is necessary for two reasons. Since the rotor speed has been adjusted higher than the rated speed, the blank time of ingenuity is shortened, which means that ingenuity needs to try to fly faster to complete the same distance. However, flying faster will increase the navigation uncertainty accumulated during the flight, which means that a larger landing elliptic curve is required. Through slow flight, ingenuity can better aim at the landing point south of “s é í TAH”

the second reason is that the terrain in the south of “s é í TAH” is more dangerous than that in the West. In flight 9, we knew that ingenuity would have great uncertainty on the landing site, but this was acceptable because the situation in this area was relatively good. This is not the case. Through two flights, ingenuity can better aim at the safe landing site on the east side of s é í TAH without too many risks during landing

in flight 17, ingenuity is expected to fly 187 meters at an altitude of 10 meters and stay in the air for 117 seconds