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YAOGAN 20A, 40109

Orbit data source: Space-Track

YAOGAN 20A, 40109 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/40109?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

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https://www.satcat.com/sats-embedded/40109?theme=dark&initialShowStats=false

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Identifier

40109, 2014-047A

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

JB-8, Unknown motor

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: 5 hours ago

TLE from 5 hours ago

0 YAOGAN 20A
1 40109U 14047A   26070.99484442 -.00000077  00000-0  15476-4 0  9991
2 40109  63.3787 269.7225 0381684  14.1572 346.9801 13.45432902569366

Epoch: 2026-03-11T23:52Z

TLE epoch observation values (Epoch: 2026-03-11T23:52:34.557Z)

Latitude

-0.00004°

Longitude

101.9274°

Altitude

813.748 km

Speed

7.584 km/s

True Right ascension

17h 58m 53s

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

08:42:11

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,372.907 km

Perigee altitude

802.971 km

Semi-major axis

7,466.076 km

Eccentricity

0.03817

Inclination

63.3787°

RAAN

269.7225°

Arg. of periapsis

14.1572°

True anomaly

345.94685°

Mean anomaly

346.9801°

Eccentric anomaly

346.46841°

Mean motion

3.36438 °/min

Orbital period

107 mins

BSTAR

0.000015476

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

CZ-4C DEB, 49945 (Decayed)

CZ-4C DEB, 49946 (Decayed)

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YAOGAN 20A 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	2026-03-12 14:15:18.911Z	179.032° S	2026-03-12 14:20:18.911Z	110.112° ESE	30.377°	2026-03-12 14:25:18.911Z	49.694° ENE
8 mins	2026-03-12 16:07:18.911Z	261.54° W	2026-03-12 16:10:18.911Z	310.034° NW	29.857°	2026-03-12 16:15:18.911Z	17.396° NNE
10 mins	2026-03-12 21:46:18.911Z	353.059° N	2026-03-12 21:50:18.911Z	33.085° NE	21.388°	2026-03-12 21:56:18.911Z	86.52° E
13 mins	2026-03-12 23:36:18.911Z	327.668° NNW	2026-03-12 23:42:18.911Z	83.883° E	44.844°	2026-03-12 23:49:18.911Z	145.202° SSE
9 mins	2026-03-13 01:28:18.911Z	286.738° WNW	2026-03-13 01:32:18.911Z	250.111° W	19.574°	2026-03-13 01:37:18.911Z	209.861° SW

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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 20A, 40109 on other resources

View YAOGAN 20A, 40109 on NASA - NSSDCA Website

View YAOGAN 20A, 40109 on Heavens-Above

View YAOGAN 20A, 40109 on Keep Track

View YAOGAN 20A, 40109 on Celestrak

View YAOGAN 20A, 40109 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 20A, 40109

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 5 hours ago

TLE from 5 hours ago

TLE epoch observation values (Epoch: 2026-03-11T23:52:34.557Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

YAOGAN 20A Visibility forecast

Co-orbital & Co-planar RSOs

Check out YAOGAN 20A, 40109 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 5 hours ago