YAOGAN-40 01C, 57833
Orbit data source: Space-Track
YAOGAN-40 01C, 57833 is a payload satellite owned by CAST (CN) in LEO that was launched on Sun, 10 Sep 2023 UTC via a CHANG ZHENG 6A launch vehicle from the Taiyaun Space Center, China (TSC). 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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57833 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH
Mission
Operational Defense Sigint
Bus & Motor
YG40, Unknown motor
Mass
~500 kg wet, ~500 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: 21 hours ago
TLE from 21 hours ago
0 YAOGAN-40 01C
1 57833U 23139D 26172.54548853 .00000093 00000-0 40254-4 0 9995
2 57833 85.9913 257.2618 0002939 90.3043 269.8477 14.12447727143422Epoch: 2026-06-21T13:05Z
TLE epoch observation values (Epoch: 2026-06-21T13:05:30.208Z)
Latitude
-0.00004°
Longitude
151.14171°
Altitude
854.028 km
Speed
7.426 km/s
True Right ascension
17h 09m 02s
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
21:31:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
850.135 km
Perigee altitude
845.888 km
Semi-major axis
7,226.149 km
Eccentricity
0.00029
Inclination
85.9913°
RAAN
257.2618°
Arg. of periapsis
90.3043°
True anomaly
269.81402°
Mean anomaly
269.8477°
Eccentric anomaly
269.83086°
Mean motion
3.53332 °/min
Orbital period
101.89 mins
BSTAR
0.000040254
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Other satellites on launch #139 in the year 2023 (2023-09-10 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.YAOGAN-40 01C 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-22 16:52:40.596Z | 21.453° NNE | 2026-06-22 16:56:40.596Z | 72.661° E | 26.55° | 2026-06-22 17:01:40.596Z | 138.901° SSE |
| 8 mins | 2026-06-22 18:35:40.596Z | 329.149° NNW | 2026-06-22 18:39:40.596Z | 266.918° W | 27.937° | 2026-06-22 18:43:40.596Z | 216.796° SW |
| 9 mins | 2026-06-23 06:00:40.596Z | 173.88° S | 2026-06-23 06:04:40.596Z | 133.012° SE | 43.347° | 2026-06-23 06:09:40.596Z | 7.46° NNE |
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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