On September 26 at 23:14 UTC, the DART mission spacecraft hit the asteroid Dimorph, a satellite of the asteroid Didim, in order to develop the technology to protect the Earth from dangerous asteroids. The spacecraft measured 1.2 × 1.3 × 1.3 meters with solar panels measuring 8.5 meters and had an impact mass of about 570 kg. In this case, the speed of the device was 6.1 km/sec. This event was observed at the T. Omarov Assy-Turgen observatory, as part of an international campaign. The most valuable spectral data of the event were obtained. A total of 19 frames were received, from the beginning of the first to the end of the last frame. The total duration of observations is 21 minutes and 20 seconds. As a result of observations, it was found that, starting from the 6th-7th frame, emission lines appeared, which we managed to identify with the resonance lines of the alkali metals Na, Li, and K. No other emissions were found in the series of frames. At present, it is difficult to say what chemical processes could result in the formation of atoms of these metals. But the fact that they appeared after the impact suggests that they were released from the Dimorph in accordance with their cosmic abundance, which is confirmed by the ratio of the intensity of these lines: the most powerful line is Na, then K and Li.