Ionosfera-M 3 & 4
Soyuz 2.1b Fregat-M · Russian Federal Space Agency (ROSCOSMOS) · Vostochny Cosmodrome
- Launch (UTC)
- Jul 25, 2025, 05:54 UTC
- Outcome
- Launched successfully
- Rocket
- Soyuz 2.1b Fregat-M
- Site
- Vostochny Cosmodrome, Siberia, Russian Federation
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