Spacecraft “Hayabusa-2”, which is currently near the asteroid Ryugu, faced with the problem while preparing for the second collection of the soil. In early April of 2019, he conducted a successful bombing and created on the object’s surface large crater. In the period from 14 to 16 may, he had to lose over an area of the recesses token-pointer to hold the apparatus on the right place, but it failed.
Initially everything went according to plan, the probe successfully began to approach the surface of the asteroid. It was expected that the marker will be dropped from 10 meter height from the surface of the asteroid, but when the station was at a distance of 50 metres, the descent was suddenly stopped in automatic mode. Subsequently, the station started to return to his former 20-kilometer orbit, and the marker remained with her.
The cause of the failure is still unknown, but researchers carefully study the telemetry data. There are several assumptions about the reasons for failure: first, because of the low reflectivity of the asteroid, the lidar stations could lose control of the distance to the object. Second, the object is gradually heated by the sun, and the unit could fail due to the increase in temperature.
Anyway, just because of raise the temperature of “Hayabusa-2” soon will not be able to stay near the asteroid. In General, the device remained only six weeks to collect the soil — otherwise, scientists will have to settle for samples collected during the first attempt. Recall that they intend to find rock samples that were not subjected to any impacts since the formation of the Solar system.
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