COSMOS 1390
NORAD 13377
Payload
LEO
1982-073C
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🛰️ Orbital Parameters
Perigee
1427 km
Apogee
1474 km
Inclination
74.0°
Period
114.9 min
Mean Motion
12.53377937 rev/day
TLE Epoch
2026-05-08 11:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude1,451 km
Orbital Velocity25,700 km/h
Velocity7.14 km/s
Orbital Period115 minutes
Orbits / Day12.53
Eccentricity0.0030
Semi-Major Axis7,822 km
Est. Orbital LifetimeThousands of years
🚀 Launch & Identity
Country / Operator
🇷🇺 Russia (CIS)
Launch Date
1982-07-21
Launch Site
PKMTR
Int'l Designator
1982-073C
Object Type
Payload
RCS Size
Medium (0.1–1 m²)
📖 About This Object
COSMOS 1390 is an active satellite operated by Russia (CIS), launched on 1982-07-21 from PKMTR. With over 44 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 1,427 km and 1,474 km with an inclination of 74.0°. It travels at approximately 25,700 km/h (7.14 km/s), completing one full orbit every 115 minutes — that’s roughly 12.53 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is thousands of years. Orbital Radar tracks COSMOS 1390 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 1390 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 1390 orbits in Low Earth Orbit (LEO) at altitudes between 1,427 km (perigee) and 1,474 km (apogee), with an average altitude of approximately 1,451 km. It completes one orbit every 115 minutes, travelling at approximately 25,700 km/h (15,969 mph).
COSMOS 1390 is operated by Russia (CIS). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 13377. You can track COSMOS 1390 in real time on Orbital Radar’s live tracker.
COSMOS 1390 was launched on 1982-07-21 from PKMTR. At its current altitude, the estimated remaining orbital lifetime is: thousands of years.
Yes — Orbital Radar tracks COSMOS 1390 (NORAD ID 13377) 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 1390 travels at approximately 25,700 km/h (15,969 mph) — roughly 7.14 km/s. It completes 12.53 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 25 sunrises and sunsets every 24 hours.