IONOSFERA-M 4
Launch
Launched on Jul 25, 2025 from Cosmodrome Site 1S, Russia aboard a Soyuz 2.1b Fregat-M.
Soyuz 2.1b/Fregat-M | Ionosfera-M 3 & 4 →Live · TLE epoch 2026-09-08 14:53 UTC
Orbit class
SSO — Sun-Synchronous (LEO at 96–102° inclination)
Operator
Russian / Soviet Government
Country
Russia
Manufacturer
—
Launched
Jul 25, 2025
Mass
—
Apogee
825 km
Perigee
824 km
Inclination
98.61°
Period
1.69 h
Altitude history
Apogee and perigee for IONOSFERA-M 4 across 103 days of archived orbital elements (104 element sets, one per day).
Trend
Stable
Change
-0.1 km
Rate
-0.00 km/day
Now
824 × 825 km
Apogee Perigee
Derived from our own archive of CelesTrak orbital elements, sampled every 3 hours. Short windows show drag and station-keeping; they are not a reentry prediction.
Launched with
19 other catalogued objects still in orbit from launch 2025-155 (Soyuz 2.1b/Fregat-M | Ionosfera-M 3 & 4).
- IONOSFERA-M 3 · 64876
- INNOSAT 16 (RS92S7) · 64878
- GEOSCAN 6 (RS92S6) · 64879
- GEOSCAN 1 (RS92S1) · 64880
- 239ALFEROV (RS61S) · 64881
- 2025-155G · 64882
- 2025-155H · 64883
- 2025-155J · 64884
- 2025-155K · 64885
- 2025-155L · 64886
- 2025-155M · 64887
- 2025-155N · 64888
- 2025-155P · 64889
- GEOSCAN 2 (RS92S2) · 64890
- GEOSCAN 5 (RS92S5) · 64891
- GEOSCAN 4 (RS92S4) · 64892
- GEOSCAN 3 (RS92S3) · 64893
- INNOSAT 3 (RS92S0) · 64894
- 2025-155V · 64895
Sources & further reading
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