CZ-6A R/B
NORAD 57831
Rocket Body
LEO
2023-139B
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LEO · NORAD 57831
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🛰️ Orbital Parameters
Perigee
790 km
Apogee
809 km
Inclination
86.0°
Period
100.9 min
Mean Motion
14.27753664 rev/day
TLE Epoch
2026-07-16 08:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude800 km
Orbital Velocity26,841 km/h
Velocity7.46 km/s
Orbital Period101 minutes
Orbits / Day14.28
Eccentricity0.0013
Semi-Major Axis7,171 km
Est. Orbital Lifetime~25–100 years
🚀 Launch & Identity
Country / Operator
🇨🇳 China
Launch Date
2023-09-10
Launch Site
Taiyuan, China
Int'l Designator
2023-139B
Object Type
Rocket Body
RCS Size
Large (>1 m²)
📖 About This Object
CZ-6A R/B is a spent rocket body associated with China, launched on 2023-09-10 from Taiyuan, China on the Yaogan 40 launch. It orbits in Low Earth Orbit (LEO) at altitudes between 790 km and 809 km with an inclination of 86.0°. It travels at approximately 26,841 km/h (7.46 km/s), completing one full orbit every 101 minutes — that’s roughly 14.28 orbits per day. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~25–100 years. Spent rocket bodies like CZ-6A R/B are among the largest pieces of uncontrolled space debris and are priority targets for collision avoidance manoeuvres and future active debris removal efforts.
🌍 Orbit Context
CZ-6A R/B orbits at an average altitude of 800 km in the upper LEO band, where atmospheric drag is negligible and objects can persist for centuries to millennia. This altitude is used by broadband constellations like OneWeb and by scientific missions requiring stable orbits far from the densest debris bands. Within ±50 km of CZ-6A R/B’s average altitude, there are currently 442 active payloads and 2,212 tracked debris or rocket body fragments — notable neighbours include NOAA 20, ONEWEB-0179, ONEWEB-0455. With an inclination of 86.0°, CZ-6A R/B passes over latitudes between 86.0°N and 86.0°S, providing near-global coverage including the polar regions. Polar and near-polar orbits are used for reconnaissance, weather monitoring and Earth-observation missions that need to image every part of the planet. China operates approximately 1,247 active satellites in total, of which 105 share a similar altitude band with CZ-6A R/B.
🔗 Spent Rocket Body
This is a spent rocket body — the upper stage of a launch vehicle that remains in orbit after delivering its payload. Rocket bodies are a significant contributor to the space debris population. Older stages often retained residual propellant that could later explode, creating debris fields. Modern guidelines require upper stages to either deorbit (controlled re-entry) or passivate (vent residual fuel) to reduce fragmentation risk. The FCC's 5-year deorbit rule and UN debris mitigation guidelines are increasingly enforced to address this growing problem.
❓ Frequently Asked Questions
CZ-6A R/B orbits in Low Earth Orbit (LEO) at altitudes between 790 km (perigee) and 809 km (apogee), with an average altitude of approximately 800 km. It completes one orbit every 101 minutes, travelling at approximately 26,841 km/h (16,678 mph).
CZ-6A R/B (NORAD ID 57831) is a spent rocket body — the upper stage of a launch vehicle attributed to China. It no longer serves a functional purpose but continues to orbit Earth as tracked debris. Spent upper stages are among the largest uncontrolled objects in orbit and are closely monitored for collision risk.
CZ-6A R/B was launched on 2023-09-10 from Taiyuan, China. At its current altitude, the estimated remaining orbital lifetime is: ~25–100 years. View the full satellite launch log.
Yes — Orbital Radar tracks CZ-6A R/B (NORAD ID 57831) 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.
CZ-6A R/B travels at approximately 26,841 km/h (16,678 mph) — roughly 7.46 km/s. It completes 14.28 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 29 sunrises and sunsets every 24 hours.