Soyuz 2.1b Fregat-M — mission imagery
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Success

Ionosfera-M 3 & 4

Soyuz 2.1b Fregat-MRussian Federal Space Agency (ROSCOSMOS)Cosmodrome Site 1S
Friday, July 25, 2025 · 05:54 AM UTCAdd to Calendar

This mission is complete.

Vehicle

Soyuz 2.1b Fregat-M

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Soyuz-2, GRAU index 14A14, is the collective designation for the 21st-century version of the Russian Soyuz rocket. In its basic form, it is a three-stage carrier rocket for placing payl...

Height46.3 m
LEO Payload8,200 kg
Launches347
Successes330

Provider

Russian Federal Space Agency (ROSCOSMOS)

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RUS • Founded 1992

The Roscosmos State Corporation for Space Activities, commonly known as Roscosmos, is the governmental body responsible for the space science program of the Russian Federation and general aerospace research. So...

Mission Brief

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

PayloadIonosfera-M 3 & 4
OrbitSun-Synchronous Orbit
CustomerRussian Federal Space Agency (ROSCOSMOS)
Stages4
PadCosmodrome Site 1S, Vostochny Cosmodrome, Siberia, Russian Federation

Mission Timeline

14 / 14100%
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Launch Site

Cosmodrome Site 1S, Vostochny Cosmodrome, Siberia, Russian Federation

LAUNCH SITE
51.884°N, 128.334°E

Schedule History

No delays or schedule changes recorded.