 The IKFS-2 satellite has been successfully used to measure total ozone columns, TOCs, over the past five years. This satellite provides reliable data even when there is no direct sunlight or cloud cover. The IKFS-2 data was compared to independent ground-based and satellite data, and the results showed that the IKFS-2 data was accurate within 2%, with a standard deviation of differences, STDs, varying from 2% to 4%. The IKFS-2 data also demonstrated an increase in discrepancies towards the poles, with STDs reaching 8% in the southern and 6% in the northern hemisphere during the spring-winter period. This technique can be used to process the IKFS-2 spectral data, providing global information on TOCs in the period of 2015 to 2020, regardless of the solar illumination and the presence of clouds. This article was authored by Alexander Polyakov, Yana Virulinin, Georgi Narabelov, and others. We are article.tv, links in the description below.