TIANMU-1 06
NORAD 55976
Payload
LEO
2023-039D
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LEO · NORAD 55976
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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
411 km
Apogee
413 km
Inclination
97.5°
Period
92.8 min
Mean Motion
15.51590564 rev/day
TLE Epoch
2026-11-02 03:00:00 UTC
📐 Computed Orbital Characteristics
Avg. Altitude412 km
Orbital Velocity27,597 km/h
Velocity7.67 km/s
Orbital Period93 minutes
Orbits / Day15.52
Eccentricity0.0001
Semi-Major Axis6,783 km
Orbit ClassSun-Synchronous (SSO)
Est. Orbital Lifetime~1–3 years
🚀 Launch & Identity
Country / Operator
🇨🇳 Xiyong Microelectrics Park (China)
Launch Date
2023-03-22
Launch Site
Jiuquan Satellite Launch Center, China
Int'l Designator
2023-039D
Object Type
Payload
RCS Size
Large (>1 m²)
📖 About This Object
TIANMU-1 06 is an active satellite operated by Xiyong Microelectrics Park (China), launched on 2023-03-22 from Jiuquan Satellite Launch Center, China on the Tianmu-1 03-06 launch. It orbits in Low Earth Orbit (LEO) at altitudes between 411 km and 413 km with an inclination of 97.5°. It travels at approximately 27,597 km/h (7.67 km/s), completing one full orbit every 93 minutes — that’s roughly 15.52 orbits per day. Its near-polar, sun-synchronous orbit means it passes over any given point on Earth at approximately the same local solar time, ideal for consistent Earth observation lighting conditions. Its near-circular orbit (eccentricity close to zero) means it maintains a very consistent altitude throughout each revolution. At its current altitude, the estimated orbital lifetime before atmospheric re-entry is ~1–3 years. Orbital Radar tracks TIANMU-1 06 in real time using the latest two-line element set (TLE) data, providing live position, altitude, speed and orbital path updated continuously.
🌍 Orbit Context
TIANMU-1 06 orbits at an average altitude of 412 km in a sun-synchronous orbit (SSO), a specialised subset of LEO where the orbital plane precesses to maintain a constant angle relative to the Sun. This provides consistent lighting conditions on every pass — essential for Earth observation, weather monitoring and environmental science. Within ±50 km of TIANMU-1 06’s average altitude, there are currently 1,211 active payloads and 98 tracked debris or rocket body fragments — notable neighbours include ISS (ZARYA), STARLINK-1008, STARLINK-1012. This makes it one of the more crowded altitude bands, containing roughly 6.4% of all active satellites. With an inclination of 97.5°, TIANMU-1 06 passes over latitudes between 97.5°N and 97.5°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 1,341 active satellites in total, of which 58 share a similar altitude band with TIANMU-1 06.
❓ Frequently Asked Questions
TIANMU-1 06 is in a sun-synchronous orbit (SSO), a specialised form of LEO at approximately 412 km altitude. Its 97.5° inclination causes the orbital plane to precess at exactly the rate of the Earth’s revolution around the Sun, so the satellite crosses each latitude at a consistent local solar time. It completes one orbit every 93 minutes, travelling at 27,597 km/h.
TIANMU-1 06 is operated by Xiyong Microelectrics Park (China). It is catalogued by the U.S. Space Surveillance Network under NORAD ID 55976. You can track TIANMU-1 06 in real time on Orbital Radar’s live tracker or browse all operators in the operator directory.
TIANMU-1 06 was launched on 2023-03-22 from Jiuquan Satellite Launch Center, China, one of China’s oldest launch centres in the Gobi Desert, used for crewed Shenzhou missions and LEO satellites. At its current altitude, the estimated remaining orbital lifetime is: ~1–3 years. View the full satellite launch log.
Yes — Orbital Radar tracks TIANMU-1 06 (NORAD ID 55976) using the latest TLE (two-line element set) orbital data in its live tracking catalogue (see our data sources). 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.
TIANMU-1 06 travels at approximately 27,597 km/h (17,148 mph) — roughly 7.67 km/s. It completes 15.52 orbits per day, meaning the crew or instruments aboard (if any) would experience approximately 31 sunrises and sunsets every 24 hours.