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YUNHAI 2-1B, 43910

Orbit data source: Space-Track

YUNHAI 2-1B, 43910 is a payload satellite owned by CASC (CN) in LEO that was launched on Sat, 29 Dec 2018 UTC via a CHANG ZHENG 2D/YZ-3 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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https://www.satcat.com/sats-embedded/43910?theme=dark&initialShowStats=false

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Identifier

43910, 2018-112B

Orbit

LEO

Country

CN / PRC

Related business

China Aerospace Science and Technology Corporation (CASC) (CN)

Manufacturer

DFH Shenzhen

Mission

Operational Defense Meteo Radio Occ.

Bus & Motor

YH-2, Unknown motor

Mass

~100 kg wet, ~100 kg dry

Launch date (UTC)

2018-12-29 (7 years ago)

Launch vehicle

CHANG ZHENG 2D/YZ-3

Launch site

Jiuquan Satellite Launch Center, China (JSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 0.5 m

Radar Cross Section

0.166 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 6 hours ago

TLE from 6 hours ago

0 YUNHAI 2-1B
1 43910U 18112B   26035.18289714 -.00000051  00000-0  43486-4 0  9992
2 43910  50.0130 312.3997 0004802 115.6126 244.5286 14.28947351371228

Epoch: 2026-02-04T04:23Z

TLE epoch observation values (Epoch: 2026-02-04T04:23:22.312Z)

Latitude

-0.00003°

Longitude

112.20357°

Altitude

797.266 km

Speed

7.455 km/s

True Right ascension

20h 49m 35s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

12:23:33

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

799.434 km

Perigee altitude

792.544 km

Semi-major axis

7,174.126 km

Eccentricity

0.00048

Inclination

50.013°

RAAN

312.3997°

Arg. of periapsis

115.6126°

True anomaly

244.47893°

Mean anomaly

244.5286°

Eccentric anomaly

244.50377°

Mean motion

3.57182 °/min

Orbital period

100.79 mins

BSTAR

0.000043486

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Other satellites on launch #112 in the year 2018 (2018-12-29 UTC)

CZ-2D R/B, 43916 (Decayed)

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YUNHAI 2-1B 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	2026-02-04 19:38:37.189Z	157.789° S	2026-02-04 19:40:37.189Z	133.963° SE	16.042°	2026-02-04 19:43:37.189Z	96.983° ESE
9 mins	2026-02-04 21:21:37.189Z	228.812° WSW	2026-02-04 21:25:37.189Z	181.77° SSW	44.388°	2026-02-04 21:30:37.189Z	57.808° ENE
8 mins	2026-02-04 23:08:37.189Z	288.868° WNW	2026-02-04 23:11:37.189Z	340.854° N	30.707°	2026-02-04 23:16:37.189Z	49.307° ENE
8 mins	2026-02-05 00:54:37.189Z	312.5° NW	2026-02-05 00:58:37.189Z	11.788° NNE	25.567°	2026-02-05 01:02:37.189Z	62.325° ENE
9 mins	2026-02-05 02:40:37.189Z	314.11° NW	2026-02-05 02:44:37.189Z	26.588° NE	38.393°	2026-02-05 02:49:37.189Z	101.867° ESE
8 mins	2026-02-05 04:26:37.189Z	284.177° WNW	2026-02-05 04:29:37.189Z	234.548° WSW	33.658°	2026-02-05 04:34:37.189Z	156.238° SSE

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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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Check out YUNHAI 2-1B, 43910 on other resources

View YUNHAI 2-1B, 43910 on NASA - NSSDCA Website

View YUNHAI 2-1B, 43910 on Heavens-Above

View YUNHAI 2-1B, 43910 on Keep Track

View YUNHAI 2-1B, 43910 on Celestrak

View YUNHAI 2-1B, 43910 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

YUNHAI 2-1B, 43910

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 6 hours ago

TLE from 6 hours ago

TLE epoch observation values (Epoch: 2026-02-04T04:23:22.312Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #112 in the year 2018 (2018-12-29 UTC)

YUNHAI 2-1B Visibility forecast

Co-orbital & Co-planar RSOs

Check out YUNHAI 2-1B, 43910 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 6 hours ago