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YAOGAN 20C, 40111

Orbit data source: Space-Track

YAOGAN 20C, 40111 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Sat, 09 Aug 2014 UTC via a CHANG ZHENG 4C 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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<iframe src="https://www.satcat.com/sats-embedded/40111?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/40111?theme=dark&initialShowStats=false

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Identifier

40111, 2014-047C

Orbit

LEO

Country

CN / PRC

Related business

Equipment Development Department of the Central Military Commission (PLA) (CN)

Manufacturer

CAST

Mission

Operational Defense Sigint

Bus & Motor

Unknown

Mass

~500 kg wet, ~500 kg dry

Launch date (UTC)

2014-08-09 (11 years ago)

Launch vehicle

CHANG ZHENG 4C

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

0.446 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 7 hours ago

TLE from 7 hours ago

0 YAOGAN 20C
1 40111U 14047C   26036.27784721 -.00000112  00000-0 -23339-4 0  9998
2 40111  63.3816 359.7860 0378444  14.3585 346.7846 13.45434404564544

Epoch: 2026-02-05T06:40Z

TLE epoch observation values (Epoch: 2026-02-05T06:40:05.998Z)

Latitude

-0.00009°

Longitude

124.32859°

Altitude

816.326 km

Speed

7.581 km/s

True Right ascension

23h 59m 08s

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

15:58:44

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,370.482 km

Perigee altitude

805.384 km

Semi-major axis

7,466.07 km

Eccentricity

0.03784

Inclination

63.3816°

RAAN

359.786°

Arg. of periapsis

14.3585°

True anomaly

345.74548°

Mean anomaly

346.7846°

Eccentric anomaly

346.26995°

Mean motion

3.36438 °/min

Orbital period

107 mins

BSTAR

-0.000023339

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Other satellites on launch #47 in the year 2014 (2014-08-09 UTC)

CZ-4C DEB, 49946 (Decayed)

CZ-4C DEB, 49945 (Decayed)

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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.

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YAOGAN 20C 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	2026-02-05 22:50:17.239Z	191.007° SSW	2026-02-05 22:55:17.239Z	111.5° ESE	37.927°	2026-02-05 23:00:17.239Z	44.301° NE
8 mins	2026-02-06 00:42:17.239Z	269.238° W	2026-02-06 00:46:17.239Z	326.056° NNW	24.546°	2026-02-06 00:50:17.239Z	12.671° NNE
10 mins	2026-02-06 06:22:17.239Z	356.781° N	2026-02-06 06:26:17.239Z	43.222° NE	25.384°	2026-02-06 06:32:17.239Z	96.741° ESE
14 mins	2026-02-06 08:11:17.239Z	322.136° NNW	2026-02-06 08:17:17.239Z	243.071° WSW	44.239°	2026-02-06 08:25:17.239Z	155.164° SSE
6 mins	2026-02-06 10:04:17.239Z	277.245° WNW	2026-02-06 10:07:17.239Z	252.425° W	14.471°	2026-02-06 10:10:17.239Z	228.922° WSW

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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 YAOGAN 20C, 40111 on other resources

View YAOGAN 20C, 40111 on NASA - NSSDCA Website

View YAOGAN 20C, 40111 on Heavens-Above

View YAOGAN 20C, 40111 on Keep Track

View YAOGAN 20C, 40111 on Celestrak

View YAOGAN 20C, 40111 on Gunter's Space Page

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

YAOGAN 20C, 40111

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2026-02-05T06:40:05.998Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #47 in the year 2014 (2014-08-09 UTC)

YAOGAN 20C Visibility forecast

Co-orbital & Co-planar RSOs

Check out YAOGAN 20C, 40111 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago