Ionosfera is a constellation of four ionospheric and magnetospheric research satellites developed by for Roscosmos for the project Ionozond. The satellites will operate on circular sun-synchronous orbits (SSO), at altitude of about 800 km and located in two orbital planes of two satellites each. The following science instruments are carried on the satellites: * SPER/1 Plasma and energy radiation spectrometer * SG/1 Gamma-ray spectrometer * GALS/1 Galactic cosmic ray spectrometer / 1 * LAERTES On-board Ionosonde * NBK/2 Low-frequency wave complex * ESEP Ionospheric plasma energy spectrometer * Ozonometer-TM Ozonometer * MayaK On-board radio transmitters * PES GPS-GLONASS device July 25, 2025 at 05:54 UTC · Launch Successful Soyuz 2.1b Fregat-M — Russian Federal Space Agency (ROSCOSMOS), to Sun-Synchronous Orbit Cosmodrome Site 1S, Vostochny Cosmodrome, Siberia, Russian Federation The world's 7008th orbital launch attempt, and 159th of 2025. https://www.youtube.com/watch?v=Jn5ZxN0NOMw Data: Launch Library 2, The Space Devs. Image by Roscosmos (Roscosmos Image Use Policy) via The Space Devs.