In May 2022, Deputy Director for Science at the Institute of Astronomy of the Russian Academy of Sciences, INASAN, Mikhail Sachkov announced a contract with NPO Lavochkin for the development of scientific payload for the Spektr-UF telescope, which he claimed had been scheduled for launch in 2025, likely citing long-obsolete official plans. However, at the end of 2022, Roskosmos confirmed that the mission was then expected to fly in the fourth quarter of 2028.