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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 (12 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: 1 day ago

TLE from 1 day ago

0 YAOGAN 20C
1 40111U 14047C   26172.51523433 -.00000120  00000-0 -30764-4 0  9996
2 40111  63.3793   8.5458 0390328  15.1331 346.0988 13.45450707582873

Epoch: 2026-06-21T12:21Z

TLE epoch observation values (Epoch: 2026-06-21T12:21:56.246Z)

Latitude

-0.00001°

Longitude

-86.65296°

Altitude

808.55 km

Speed

7.589 km/s

True Right ascension

00h 34m 10s

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

00:50:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,379.292 km

Perigee altitude

796.454 km

Semi-major axis

7,466.01 km

Eccentricity

0.03903

Inclination

63.3793°

RAAN

8.5458°

Arg. of periapsis

15.1331°

True anomaly

344.97097°

Mean anomaly

346.0988°

Eccentric anomaly

345.54037°

Mean motion

3.36442 °/min

Orbital period

107 mins

BSTAR

-0.000030764

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

CZ-4C DEB, 49946 (Decayed)

YAOGAN 20B, 40110

CZ-4C DEB, 40114

CZ-4C DEB, 49945 (Decayed)

CZ-4C DEB, 40113

YAOGAN 20A, 40109

CZ-4C R/B, 40112

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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	2026-06-22 15:15:52.035Z	227.159° WSW	2026-06-22 15:20:52.035Z	321.504° NNW	41.543°	2026-06-22 15:25:52.035Z	27.689° NE
4 mins	2026-06-22 17:10:52.035Z	313.573° NW	2026-06-22 17:12:52.035Z	336.35° NNW	14.153°	2026-06-22 17:14:52.035Z	357.204° N
6 mins	2026-06-22 20:57:52.035Z	7.386° NNE	2026-06-22 20:59:52.035Z	26.49° NE	15.032°	2026-06-22 21:03:52.035Z	61.127° ENE
13 mins	2026-06-22 22:46:52.035Z	338.862° N	2026-06-22 22:51:52.035Z	39.487° NE	38.418°	2026-06-22 22:59:52.035Z	126.108° SE
12 mins	2026-06-23 00:37:52.035Z	301.587° NW	2026-06-23 00:42:52.035Z	244.461° WSW	30.961°	2026-06-23 00:49:52.035Z	183.823° SSW

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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: 1 day ago

TLE from 1 day ago

TLE epoch observation values (Epoch: 2026-06-21T12:21:56.246Z)

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: 1 day ago