Ionosfera-M 3 & 4

Launched the Ionosfera-M No. 3 and No. 4 space-weather satellites from Vostochny, completing Russia's four-satellite ionosphere-monitoring constellation, along with 18 rideshare smallsats including Iran's Nahid-2 communications satellite.

Outcome

Success

Orbit

SSO

Sun-synchronous orbit

Payload to orbit

1.1 T

Flight

33rd

of 36 Soyuz 2.1b Fregat-M flights

Date and time

25 July 2025, 05:54 UTC

Rocket

Soyuz 2.1b Fregat-M

Builder

Progress RSC

Launch site

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

Payload

Earth Science

International designator

2025-155

Launches in 2025

161st of 329

See it in orbit

Space Atlas shows the satellites and rocket stages from this launch in 3D.

View satellites in Space Atlas↗