COSMOS 2539
NORAD 44457
Payload
GEO
2019-048A
● Active
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GEO · NORAD 44457
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Altitude (km)
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Speed (km/s)
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Latitude
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Longitude
🛰️ Orbital Parameters
Perigee
35783 km
Apogee
35789 km
Inclination
0.0°
Period
1436.1 min
Mean Motion
1.00273944 rev/day
TLE Epoch
2026-06-19 02:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude35,786 km
Orbital Velocity11,070 km/h
Velocity3.07 km/s
Orbital Period~24 hours (geosynchronous)
Orbits / Day1.00
Eccentricity0.0001
Semi-Major Axis42,157 km
Est. Orbital LifetimePermanent — geostationary orbit, no atmospheric drag
🚀 Launch & Identity
Country / Operator
🇷🇺 Ministry of Defense (Russia (CIS))
Launch Date
2019-08-05
Launch Site
Baikonur, Kazakhstan
Int'l Designator
2019-048A
Object Type
Payload
RCS Size
Large (>1 m²)
📖 About This Object
COSMOS 2539 is an active satellite operated by Ministry of Defense (Russia (CIS)), launched on 2019-08-05 from Baikonur, Kazakhstan. It orbits in Geostationary Orbit (GEO) at altitudes between 35,783 km and 35,789 km with an inclination of 0.0°. It travels at approximately 11,070 km/h (3.07 km/s), completing one full orbit every ~24 hours (geosynchronous) — that’s roughly 1.00 orbits per day. At geostationary altitude, there is no meaningful atmospheric drag — this object will remain in orbit indefinitely unless actively deorbited. Orbital Radar tracks COSMOS 2539 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
COSMOS 2539 occupies geostationary orbit at approximately 35,786 km above the equator, where its orbital period matches the Earth’s 24-hour rotation. From the ground, it appears to hover over a fixed point — ideal for broadcast television, weather monitoring and wideband communications. Within ±50 km of COSMOS 2539’s average altitude, there are currently 713 active payloads and 58 tracked debris or rocket body fragments — notable neighbours include ASTRA 1N, GOES 16, TDRS 13. Russia (CIS) operates approximately 1,286 active satellites in total, of which 124 share a similar altitude band with COSMOS 2539.
🔗 Cosmos (Military/Government) Series
This satellite carries the Cosmos designation, used by Russia (and formerly the Soviet Union) as a generic identifier for military and government spacecraft. The Cosmos series encompasses reconnaissance, signals intelligence (SIGINT), early warning, navigation, communications and scientific payloads. Many Cosmos satellites have classified missions with limited publicly available information.
❓ Frequently Asked Questions
COSMOS 2539 orbits at approximately 35,786 km altitude, where the orbital period matches the Earth’s 24-hour rotation. This means it stays above the same point on the equator at all times. Its actual speed is still 11,070 km/h — it just keeps pace with the ground below. Learn more about geostationary orbits.
COSMOS 2539 is operated by Ministry of Defense (Russia (CIS)). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 44457. You can track COSMOS 2539 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
COSMOS 2539 was launched on 2019-08-05 from Baikonur, Kazakhstan, the world’s first and largest operational space launch facility, located in Kazakhstan. View the full satellite launch log.
Yes — Orbital Radar tracks COSMOS 2539 (NORAD ID 44457) using the latest TLE (two-line element set) data from Space-Track and CelesTrak. Open the live tracker to see its current position, altitude, speed and orbital path updated in real time. You can also browse the satellite directory to find other tracked objects.
COSMOS 2539 travels at approximately 11,070 km/h (6,878 mph) — roughly 3.07 km/s. Despite this high speed, it appears stationary from the ground because it matches the Earth’s rotation. Geostationary satellites are actually slower than LEO satellites because orbital velocity decreases with altitude.