COSMOS 2604

NORAD 67678· COSPAR 2026-023E· Active satellite· Military & Reconnaissance· SSO

Launch

Launched on Feb 5, 2026 from 43/4 (43R), Russia aboard a Soyuz 2.1b Fregat-M.

Soyuz 2.1b/Fregat-M | Kosmos 2600-2608 →

GLONASS satellite (representative) — Representative GLONASS image · Patrick G. · CC BY-SA 2.0 · via Wikimedia Commons

Live · TLE epoch 2026-09-07 17:21 UTC

Orbit class

SSO — Sun-Synchronous (LEO at 96–102° inclination)

Operator

Russia / Soviet Union (military)

Country

Russia

Manufacturer

—

Launched

Feb 5, 2026

Mass

—

Apogee

501 km

Perigee

477 km

Inclination

96.61°

Period

1.57 h

Part of the GLONASS constellation · this satellite is one of 758

Russian satellite navigation system. ~24 active sats in MEO at ~19,100 km.

See all GLONASS satellites →

Altitude history

Apogee and perigee for COSMOS 2604 across 14 days of archived orbital elements (15 element sets, one per day).

Trend

Stable

Change

-0.7 km

Rate

-0.05 km/day

Now

477 × 501 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

8 other catalogued objects still in orbit from launch 2026-023 (Soyuz 2.1b/Fregat-M | Kosmos 2600-2608).

COSMOS 2600 · 67674
COSMOS 2601 · 67675
COSMOS 2602 · 67676
COSMOS 2603 · 67677
COSMOS 2605 · 67679
COSMOS 2606 · 67680
COSMOS 2607 · 67681
COSMOS 2608 · 67682

Sources & further reading

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