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: 1 day ago
TLE from 1 day ago
0 HAIYANG 2A
1 37781U 11043A 26172.47922443 .00000225 00000-0 28474-3 0 9995
2 37781 99.3397 175.0606 0005810 82.6456 277.5353 13.74333314747246Epoch: 2026-06-21T11:30Z
TLE epoch observation values (Epoch: 2026-06-21T11:30:04.990Z)
Latitude
-0.00006°
Longitude
92.86091°
Altitude
986.327 km
Speed
7.359 km/s
True Right ascension
11h 40m 14s
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
23:27:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
985.581 km
Perigee altitude
977.029 km
Semi-major axis
7,359.442 km
Eccentricity
0.00058
Inclination
99.3397°
RAAN
175.0606°
Arg. of periapsis
82.6456°
True anomaly
277.46929°
Mean anomaly
277.5353°
Eccentric anomaly
277.5023°
Mean motion
3.43776 °/min
Orbital period
104.72 mins
BSTAR
0.00028474
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-06-22 12:33:49.380Z | 29.666° NE | 2026-06-22 12:38:49.380Z | 103.187° ESE | 36.533° | 2026-06-22 12:43:49.380Z | 170.786° S |
| 8 mins | 2026-06-22 14:17:49.380Z | 344.704° N | 2026-06-22 14:21:49.380Z | 295.606° NW | 24.425° | 2026-06-22 14:25:49.380Z | 247.502° W |
| 6 mins | 2026-06-22 22:37:49.380Z | 89.633° E | 2026-06-22 22:40:49.380Z | 55.164° ENE | 17.563° | 2026-06-22 22:43:49.380Z | 23.26° NE |
| 10 mins | 2026-06-23 00:18:49.380Z | 174.926° S | 2026-06-23 00:22:49.380Z | 229.317° WSW | 43.273° | 2026-06-23 00:28:49.380Z | 340.997° N |
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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