CSS (TIANHE-1), 48274
Orbit data source: Space-Track
The Chinese Space Station (CSS), known as Tiangong or "Heavenly Palace," is China's independently developed space station that represents a significant step in China’s space exploration capabilities. Launched in phases starting with the Tianhe module in 2021, the station operates in low Earth orbit (LEO). It aims to support a variety of scientific experiments in fields such as space medicine, astronomy, and technology development.
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48274 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Civil Spaceship
Bus & Motor
TIANHE, Unknown motor
Mass
22,500 kg wet, ~20,838 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Step Cyl + 2 Pan, 15.0 m
Radar Cross Section
85.800 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 CSS (TIANHE-1)
1 48274U 21035A 25241.20558826 .00027560 00000-0 35177-3 0 9992
2 48274 41.4650 298.1385 0006502 253.5171 106.4952 15.58630602247545Epoch: 2025-08-29T04:56Z
TLE epoch observation values (Epoch: 2025-08-29T04:56:02.825Z)
Latitude
-0.00007°
Longitude
-113.53093°
Altitude
392.471 km
Speed
7.676 km/s
True Right ascension
19h 52m 33s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
08:12:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
398.254 km
Perigee altitude
389.448 km
Semi-major axis
6,771.988 km
Eccentricity
0.00065
Inclination
41.465°
RAAN
298.1385°
Arg. of periapsis
253.5171°
True anomaly
106.56662°
Mean anomaly
106.4952°
Eccentric anomaly
106.53091°
Mean motion
3.89465 °/min
Orbital period
92.43 mins
BSTAR
0.00035177
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Other satellites on launch #35 in the year 2021 (2021-04-29 UTC)
CSS (TIANHE-1) Visibility forecast
Observer location: undefined°, undefined°
Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-08-30 07:17:44.319Z | 220.87° SW | 2025-08-30 07:20:44.319Z | 142.047° SSE | 29.509° | 2025-08-30 07:22:44.319Z | 92.83° ESE |
| 4 mins | 2025-08-30 08:55:44.319Z | 268.907° W | 2025-08-30 08:57:44.319Z | 49.567° ENE | 41.782° | 2025-08-30 08:59:44.319Z | 75.805° E |
| 4 mins | 2025-08-30 10:32:44.319Z | 286.684° WNW | 2025-08-30 10:34:44.319Z | 51.576° ENE | 42.689° | 2025-08-30 10:36:44.319Z | 91.697° ESE |
| 4 mins | 2025-08-30 12:09:44.319Z | 260.742° W | 2025-08-30 12:11:44.319Z | 186.912° SSW | 30.759° | 2025-08-30 12:13:44.319Z | 139.597° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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Event ID | Pc | Md | Secondary | Secondary name | Country | Click to unsort rows by TCA header |
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Authenticating...
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