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Image: Roscosmos

Soyuz 2.1b/Fregat-M | Ionosfera-M 3 & 4

Russian Federal Space Agency (ROSCOSMOS) · Soyuz 2.1b Fregat-M · Cosmodrome Site 1S, Vostochny Cosmodrome, Siberia, Russian Federation

Russian Federal Space Agency (ROSCOSMOS)'s 333rd launch · 4th this year · humanity's 7,008th orbital launch attempt

T− --:--:--July 25, 2025 · 05:54 UTCAdd to calendar
Success

The launch vehicle successfully inserted its payload(s) into the target orbit(s).

Window: Jul 25, 05:54Jul 25, 05:54 UTC

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Ionosfera-M 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

Earth Science · Sun-Synchronous Orbit (SSO)

Booster

No booster details available.

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Updates

  • Launch success.

    Cosmic_Penguin · 7/25/2025 · source

  • Liftoff.

    Cosmic_Penguin · 7/25/2025 · source

  • Tweaked T-0.

    Cosmic_Penguin · 7/22/2025 · source

  • Added launch time.

    Cosmic_Penguin · 5/14/2025 · source

  • NET July 25.

    Cosmic_Penguin · 5/3/2025 · source

  • NET July 24.

    Cosmic_Penguin · 4/2/2025 · source

  • Added launch.

    Cosmic_Penguin · 2/3/2025 · source

Pad — Cosmodrome Site 1S

Local pad time: Jul 25, 2:54 PM GMT+9

20 launches from this pad · 21 from Vostochny Cosmodrome, Siberia, Russian Federation

Map of Cosmodrome Site 1SOpen in maps