TIANMU-1 20, 58661
Orbit data source: Space-Track
TIANMU-1 20, 58661 is a payload satellite owned by Hangtian Tianmu (CN) in SSO that was launched on Wed, 27 Dec 2023 UTC via a KUAIZHOU-1A launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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58661 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
Hangtian Tianmu
Mission
Operational Commercial Weather
Bus & Motor
TIANMU, Unknown motor
Mass
50 kg wet, ~50 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.8 m
Radar Cross Section
2.000 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 TIANMU-1 20
1 58661U 23208B 26172.56804883 .00006296 00000-0 20107-3 0 9997
2 58661 97.4447 289.5303 0005732 315.3365 44.7415 15.32819357138096Epoch: 2026-06-21T13:37Z
TLE epoch observation values (Epoch: 2026-06-21T13:37:59.418Z)
Latitude
-0.00002°
Longitude
175.26627°
Altitude
467.725 km
Speed
7.634 km/s
True Right ascension
19h 18m 07s
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
21:31:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
468.278 km
Perigee altitude
460.434 km
Semi-major axis
6,842.493 km
Eccentricity
0.00057
Inclination
97.4447°
RAAN
289.5303°
Arg. of periapsis
315.3365°
True anomaly
44.78776°
Mean anomaly
44.7415°
Eccentric anomaly
44.76463°
Mean motion
3.83461 °/min
Orbital period
93.88 mins
BSTAR
0.00020107
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Other satellites on launch #208 in the year 2023 (2023-12-27 UTC)
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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.TIANMU-1 20 Visibility forecast
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 19:59:01.194Z | 54.508° ENE | 2026-06-22 20:01:01.194Z | 99.267° ESE | 20.393° | 2026-06-22 20:03:01.194Z | 140.758° SSE |
| 4 mins | 2026-06-23 08:05:01.194Z | 190.738° SSW | 2026-06-23 08:06:01.194Z | 220.655° SW | 38.688° | 2026-06-23 08:09:01.194Z | 336.96° NNW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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