Japanese probe "Hayabusa-2" landed on the asteroid Ryugu two rover
Japanese spacecraft "Hayabusa-2" produced resetting two small cylindrical rovers MINERVA-II1A and MINERVA-II1B on the surface of a 900-meter asteroid Ryugu, which arrived in June this year. The probe is close to the surface of the object to the height of about 55 meters and made a landing rovers, which will study the structural and chemical characteristics of the asteroid.
Both compact apparatus size 7 x 18 cm and weight of 1, 1 kilogram equipped with different scientific equipment, in which the composition has a thermal and optical sensors, as well as a total of 7 cells each. mission command "Hayabusa-2" refers to their rovers, but on the surface of the asteroid, they will move in an interesting way - not the way it is, for example, does the rover "Kyuriositi" on the surface of Mars using the wheelbase. An interesting feature of MINERVA-II1A and MINERVA-II1B is that the devices will move on the surface of the asteroid jumps, using low Ryugu gravity. To this end, each of the devices built into the special asymmetrical rotating flywheel. At the next it will jump back device.
"Gravity on Ryugu is very weak, so when using the conventional wheels or stepper machine movement systems began to sail as soon as started to move. Therefore, to move on the surface of the Ryugu we decided to use the hopping mechanism. After the next hop rover will be above the surface for 15 minutes in advance and 15 meters before landing "- comment feature displacement apparatus mission command" Hayabusa 2 ".
All steps to move the rovers will perform off-line, self-determining where to go next, according to the Japanese Space Agency.
Japanese probe "Hayabusa-2" took this photo September 21, 2018 at the time of landing of two small rovers MINERVA-II1 Ryugu on the surface of an asteroid. The photo shows a shadow of a spacecraft "Hayabusa-2"
In early October, with the main unit "Hayabusa-2" is planned for the landing of another device - lander MASCOT, developed by the German Aerospace Center (DLR). landing place is already selected for the module. In the same year "Hayabusa-2" Go down to the Ryugu another rover - MINERVA-II2. In addition, next year is planned to start operations to collect asteroid samples of soil. To do this, "Hayabusa-2" shot in the Ryugu small explosive charge, and then gather to rise from the surface of soil particles, which will then be sent and dropped to Earth in 2020. It should be noted that the mission of "Hayabusa-2" is not the only project related to the study of asteroids in the vicinity of the target. Space probe OSIRIS-REx US space agency NASA is currently moving at full speed to the 500 meter asteroid Bennu. The device will come to the asteroid on December 3 and will take a permanent orbit around it on 31 December.
If all goes according to plan, OSIRIS-Rex will collect soil Bennu in the middle of 2020 samples a year and go home with them. Having reached the Earth in 2023, OSIRIS-Rex will reset the samples in special protective containers equipped with parachute system.
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