COSMOS 2504

NORAD 40555· COSPAR 2015-020D· Active satellite· Military & Reconnaissance· LEO

Launch

Launched on Mar 31, 2015 from 133/3 (133L), Russia aboard a Rokot/Briz-KM.

Rokot / Briz-KM | Gonets M-21, Gonets M-22, Gonets M-23, Kosmos 2504 →

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

Live · TLE epoch 2026-09-08 14:31 UTC

Orbit class

LEO — Low Earth Orbit (circular, < 2,000 km)

Operator

Russia / Soviet Union (military)

Country

Russia

Manufacturer

—

Launched

Mar 31, 2015

Mass

—

Apogee

1,486 km

Perigee

584 km

Inclination

82.52°

Period

1.76 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 2504 across 14 days of archived orbital elements (15 element sets, one per day).

Trend

Stable

Change

-0.0 km

Rate

-0.00 km/day

Now

584 × 1486 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

3 other catalogued objects still in orbit from launch 2015-020 (Rokot / Briz-KM | Gonets M-21, Gonets M-22, Gonets M-23, Kosmos 2504).

GONETS-M 11 · 40552
GONETS-M 12 · 40553
GONETS-M 13 · 40554

Sources & further reading

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