YUNHAI 1, 41857
Orbit data source: Space-Track
YUNHAI 1, 41857 is a payload satellite owned by SAST (CN) in SSO that was launched on Fri, 11 Nov 2016 UTC via a CHANG ZHENG 2D 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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41857 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SAST
Mission
Operational Defense Weather
Bus & Motor
YUNHAI-1, Unknown motor
Mass
~800 kg wet, ~800 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.0 m
Radar Cross Section
5.141 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 YUNHAI 1
1 41857U 16068A 26027.86060346 .00000449 00000-0 18126-3 0 9994
2 41857 98.5899 40.1386 0006754 88.2199 271.9758 14.32688080481738Epoch: 2026-01-27T20:39Z
TLE epoch observation values (Epoch: 2026-01-27T20:39:16.138Z)
Latitude
-0.00009°
Longitude
-36.81457°
Altitude
785.532 km
Speed
7.461 km/s
True Right ascension
02h 40m 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
10:37:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
784.73 km
Perigee altitude
775.061 km
Semi-major axis
7,158.033 km
Eccentricity
0.00068
Inclination
98.5899°
RAAN
40.1386°
Arg. of periapsis
88.2199°
True anomaly
271.89845°
Mean anomaly
271.9758°
Eccentric anomaly
271.93712°
Mean motion
3.58387 °/min
Orbital period
100.45 mins
BSTAR
0.00018126
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Other satellites on launch #68 in the year 2016 (2016-11-11 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.YUNHAI 1 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-01-28 12:21:24.912Z | 60.332° ENE | 2026-01-28 12:23:24.912Z | 85.457° E | 15.712° | 2026-01-28 12:26:24.912Z | 124.462° SE |
| 8 mins | 2026-01-28 14:00:24.912Z | 357.434° N | 2026-01-28 14:03:24.912Z | 293.593° NW | 39.591° | 2026-01-28 14:08:24.912Z | 211.1° SW |
| 6 mins | 2026-01-28 23:38:24.912Z | 101.736° ESE | 2026-01-28 23:40:24.912Z | 71.172° E | 21.93° | 2026-01-28 23:44:24.912Z | 16.017° NNE |
| 8 mins | 2026-01-29 01:16:24.912Z | 199.964° SSW | 2026-01-29 01:19:24.912Z | 249.937° W | 32.555° | 2026-01-29 01:24:24.912Z | 330.415° NNW |
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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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