COSMOS 1089
NORAD 11308
Payload
LEO
1979-026A
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🛰️ Orbital Parameters
Perigee
963 km
Apogee
998 km
Inclination
83.0°
Period
104.7 min
Mean Motion
13.75416746 rev/day
TLE Epoch
2026-05-08 12:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude981 km
Orbital Velocity26,508 km/h
Velocity7.36 km/s
Orbital Period105 minutes
Orbits / Day13.75
Eccentricity0.0024
Semi-Major Axis7,352 km
Est. Orbital Lifetime~100–500 years
🚀 Launch & Identity
Country / Operator
🇷🇺 Russia (CIS)
Launch Date
1979-03-21
Launch Site
PKMTR
Int'l Designator
1979-026A
Object Type
Payload
RCS Size
Large (>1 m²)
📖 About This Object
COSMOS 1089 is an active satellite operated by Russia (CIS), launched on 1979-03-21 from PKMTR. With over 47 years in orbit, it has far exceeded many satellites’ design lifetimes. It orbits in Low Earth Orbit (LEO) at altitudes between 963 km and 998 km with an inclination of 83.0°. It travels at approximately 26,508 km/h (7.36 km/s), completing one full orbit every 105 minutes — that’s roughly 13.75 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~100–500 years. Orbital Radar tracks COSMOS 1089 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 1089 occupies the mid-LEO band between 600 and 1,000 km, where atmospheric drag is minimal but radiation exposure remains low. This altitude range balances orbital longevity (decades to centuries) with reasonable ground coverage, making it popular for remote sensing constellations, scientific instruments and weather satellites. Debris concerns are significant here because objects persist far longer than in lower orbits.
🔗 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 1089 orbits in Low Earth Orbit (LEO) at altitudes between 963 km (perigee) and 998 km (apogee), with an average altitude of approximately 981 km. It completes one orbit every 105 minutes, travelling at approximately 26,508 km/h (16,472 mph).
COSMOS 1089 is operated by Russia (CIS). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 11308. You can track COSMOS 1089 in real time on Orbital Radar’s live tracker.
COSMOS 1089 was launched on 1979-03-21 from PKMTR. At its current altitude, the estimated remaining orbital lifetime is: ~100–500 years.
Yes — Orbital Radar tracks COSMOS 1089 (NORAD ID 11308) 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 1089 travels at approximately 26,508 km/h (16,472 mph) — roughly 7.36 km/s. It completes 13.75 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 28 sunrises and sunsets every 24 hours.