HAIYANG 2A, 37781
Orbit data source: Space-Track
HAIYANG 2A, 37781 is a Chinese payload satellite in SSO that was launched on Mon, 15 Aug 2011 UTC via a CHANG ZHENG 4B 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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37781 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SISE
Mission
Operational Civil Science
Bus & Motor
CAST-968?, Unknown motor
Mass
~1,500 kg wet, ~1,500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 2.0 m
Radar Cross Section
2.315 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 HAIYANG 2A
1 37781U 11043A 26068.85989049 -.00000230 00000-0 -18431-3 0 9996
2 37781 99.3421 73.4597 0001421 272.5262 87.5726 13.78270737732995Epoch: 2026-03-09T20:38Z
TLE epoch observation values (Epoch: 2026-03-09T20:38:14.538Z)
Latitude
-0.00007°
Longitude
-43.64764°
Altitude
972.819 km
Speed
7.365 km/s
True Right ascension
04h 53m 50s
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
06:51:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
968.316 km
Perigee altitude
966.228 km
Semi-major axis
7,345.409 km
Eccentricity
0.00014
Inclination
99.3421°
RAAN
73.4597°
Arg. of periapsis
272.5262°
True anomaly
87.58887°
Mean anomaly
87.5726°
Eccentric anomaly
87.58073°
Mean motion
3.44762 °/min
Orbital period
104.42 mins
BSTAR
-0.00018431
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Other satellites on launch #43 in the year 2011 (2011-08-15 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.HAIYANG 2A 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. |
|---|---|---|---|---|---|---|---|
| 11 mins | 2026-03-10 12:54:19.001Z | 20.567° NNE | 2026-03-10 12:59:19.001Z | 77.106° E | 42.405° | 2026-03-10 13:05:19.001Z | 185.096° SSW |
| 6 mins | 2026-03-10 14:39:19.001Z | 333.062° NNW | 2026-03-10 14:42:19.001Z | 298.362° NW | 18.432° | 2026-03-10 14:45:19.001Z | 264.527° W |
| 7 mins | 2026-03-10 22:56:19.001Z | 102.687° ESE | 2026-03-10 22:59:19.001Z | 65.083° ENE | 22.588° | 2026-03-10 23:03:19.001Z | 17° NNE |
| 10 mins | 2026-03-11 00:37:19.001Z | 186.531° SSW | 2026-03-11 00:42:19.001Z | 264.755° W | 38.39° | 2026-03-11 00:47:19.001Z | 333.417° 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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