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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>

Iframe URL

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: 4 hours ago

TLE from 4 hours ago

0 YAOGAN 20A
1 40109U 14047A   26104.21827478 -.00000169  00000-0 -84863-4 0  9993
2 40109  63.3793 184.0725 0384671  14.3110 346.8454 13.45435414573837

Epoch: 2026-04-14T05:14Z

TLE epoch observation values (Epoch: 2026-04-14T05:14:18.940Z)

Latitude

-0°

Longitude

-96.9041°

Altitude

811.74 km

Speed

7.586 km/s

True Right ascension

12h 16m 17s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

15:26:42

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,375.127 km

Perigee altitude

800.732 km

Semi-major axis

7,466.066 km

Eccentricity

0.03847

Inclination

63.3793°

RAAN

184.0725°

Arg. of periapsis

14.311°

True anomaly

345.79311°

Mean anomaly

346.8454°

Eccentric anomaly

346.32432°

Mean motion

3.36438 °/min

Orbital period

107 mins

BSTAR

-0.000084863

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

CZ-4C DEB, 40113

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 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.
8 mins	2026-04-14 09:00:59.220Z	277.849° WNW	2026-04-14 09:04:59.220Z	326.372° NNW	19.896°	2026-04-14 09:08:59.220Z	10.113° NNE
12 mins	2026-04-14 14:39:59.220Z	346.573° N	2026-04-14 14:44:59.220Z	44.637° NE	30.318°	2026-04-14 14:51:59.220Z	109.048° ESE
13 mins	2026-04-14 16:29:59.220Z	315.781° NNW	2026-04-14 16:35:59.220Z	239.679° WSW	40.467°	2026-04-14 16:42:59.220Z	167.108° S
8 mins	2026-04-15 06:20:59.220Z	170.805° S	2026-04-15 06:23:59.220Z	118.67° SE	31.927°	2026-04-15 06:28:59.220Z	49.91° ENE
8 mins	2026-04-15 08:10:59.220Z	260.6° W	2026-04-15 08:14:59.220Z	324.179° NNW	28.526°	2026-04-15 08:18:59.220Z	14.58° NNE

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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: 4 hours ago

TLE from 4 hours ago

TLE epoch observation values (Epoch: 2026-04-14T05:14:18.940Z)

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: 4 hours ago