According to the Russian Space Agency, on August 19 an impulse was provided to propel Luna-25 into an elliptical pre-landing orbit.
At about 11:57 GMT, communication with Luna-25 was lost.
The search for the lunar station was fruitless. According to the results of the preliminary analysis, due to the deviation of the actual parameters of the impulse from the calculated ones, the device switched to an off-design orbit and collided with the lunar surface.
On August 11, the Soyuz-2.1b carrier rocket lifted off from Russia's Vostochny Cosmodrome and launched into orbit Luna-25, the first Russian lunar mission in almost 50 years and the first one in Russia's independent space history. Its predecessor, Luna-24, was launched by the Soviet Union in 1976.