COSMOS 1559
NORAD 14998
Payload
LEO
1984-052A
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🛰️ Orbital Parameters
Perigee
1470 km
Apogee
1510 km
Inclination
74.0°
Period
115.8 min
Mean Motion
12.43979664 rev/day
TLE Epoch
2026-05-08 18:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude1,490 km
Orbital Velocity25,635 km/h
Velocity7.12 km/s
Orbital Period116 minutes
Orbits / Day12.44
Eccentricity0.0025
Semi-Major Axis7,861 km
Est. Orbital LifetimeThousands of years
🚀 Launch & Identity
Country / Operator
🇷🇺 Russia (CIS)
Launch Date
1984-05-28
Launch Site
PKMTR
Int'l Designator
1984-052A
Object Type
Payload
RCS Size
Medium (0.1–1 m²)
📖 About This Object
COSMOS 1559 is an active satellite operated by Russia (CIS), launched on 1984-05-28 from PKMTR. With over 42 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 1,470 km and 1,510 km with an inclination of 74.0°. It travels at approximately 25,635 km/h (7.12 km/s), completing one full orbit every 116 minutes — that’s roughly 12.44 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is thousands of years. Orbital Radar tracks COSMOS 1559 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 1559 orbits in the upper reaches of Low Earth Orbit, above 1,000 km. At this altitude, atmospheric drag is negligible and objects can remain in orbit for thousands of years without active deorbiting. This region is used by satellite broadband constellations like OneWeb and by scientific missions that need stable, long-duration orbits away from the densest debris bands. The high inclination typical at this altitude provides near-global coverage.
🔗 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 1559 orbits in Low Earth Orbit (LEO) at altitudes between 1,470 km (perigee) and 1,510 km (apogee), with an average altitude of approximately 1,490 km. It completes one orbit every 116 minutes, travelling at approximately 25,635 km/h (15,929 mph).
COSMOS 1559 is operated by Russia (CIS). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 14998. You can track COSMOS 1559 in real time on Orbital Radar’s live tracker.
COSMOS 1559 was launched on 1984-05-28 from PKMTR. At its current altitude, the estimated remaining orbital lifetime is: thousands of years.
Yes — Orbital Radar tracks COSMOS 1559 (NORAD ID 14998) 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.
COSMOS 1559 travels at approximately 25,635 km/h (15,929 mph) — roughly 7.12 km/s. It completes 12.44 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 25 sunrises and sunsets every 24 hours.