We analyze the features of energetic electron precipitation (with the maximum energy E ≥ 150 keV) from the Earth’s radiation belt into a magnetically conjugate region of the ionosphere (relative to the Sura facility) during modification of the ionospheric F₂ region by high-power HF O-mode radio waves in the regime of their continuous radiation. Precipitation was recorded by the DEMETER satellite at an altitude of 660 km. Criteria for observation of artificial precipitation were determined, and it was found that the precipitation area stretches to a distance of up to 2200 km along the geomagnetic meridian. The transverse size of the area exceeds 500 km. Comparison between the nature of precipitation in the magnetically conjugate region and precipitation directly in the region disturbed by high-power HF radio waves of the Sura facility is performed.

我们分析了在修改电离层F ₂期间，从地球辐射带到电离层的磁共轭区域（相对于Sura设施）的高能电子沉淀（最大能量E≥150 keV）的特征。大功率HF O型无线电波在其连续辐射范围内对区域进行辐射。DEMETER卫星在660公里的高度记录了降水。确定了人工降水的观测标准，发现降水区域沿地磁子午线延伸至2200 km。该区域的横向尺寸超过500公里。比较了在磁共轭区域的降水的性质和直接受到Sura设施的高功率HF无线电波干扰的区域的降水的性质。