Soyuz 2.1b/Fregat-M | Ionosfera-M n°3, 4

Status

Ionosfera-M n°3, 4

Launch Time
NET Jun 17, 2025

Rocket

Soyuz 2.1b/Fregat-M

Image Credit: Roscosmos

Roscosmos

Status: Active

Price: $25.0 million

Liftoff Thrust: 4,550 kN

Payload to LEO: 7,500 kg

Payload to GTO: 3,250 kg

Stages: 4

Strap-ons: 4

Rocket Height: 46.94 m

Fairing Diameter: 4.11 m

Fairing Height: 11.43 m

Details

Mission Details

Ionosfera-M n°3 & 4

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

Payloads: 2

Total Mass: 400.0 kg

Sun-Synchronous Orbit

Location

Site 1S, Vostochny Cosmodrome, Russia

Wiki

Stats

2025

42nd orbital launch attempt

Soyuz 2.1b

94th mission

1st mission of 2025