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YAOGAN-31 G, 47691

Orbit data source: Space-Track

YAOGAN-31 G, 47691 is a payload satellite owned by PLA SSF (CN) in LEO that was launched on Wed, 24 Feb 2021 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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https://www.satcat.com/sats-embedded/47691?theme=dark&initialShowStats=false

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Identifier

47691, 2021-014A

Orbit

LEO

Country

CN / PRC

Related business

Strategic Support Troops (CN)

Manufacturer

DFH

Mission

Operational Defense Sigint

Bus & Motor

JB-8B, Unknown motor

Mass

~500 kg wet, ~500 kg dry

Launch date (UTC)

2021-02-24 (5 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: 23 hours ago

TLE from 23 hours ago

0 YAOGAN-31 G
1 47691U 21014A   26172.55113590 -.00000074  00000-0  24470-4 0  9995
2 47691  63.4015 186.6340 0177522   0.6021 359.5187 13.45449881261362

Epoch: 2026-06-21T13:13Z

TLE epoch observation values (Epoch: 2026-06-21T13:13:38.141Z)

Latitude

-0.00001°

Longitude

78.47529°

Altitude

958.246 km

Speed

7.438 km/s

True Right ascension

12h 26m 32s

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

23:09:15

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

1,220.413 km

Perigee altitude

955.337 km

Semi-major axis

7,466.012 km

Eccentricity

0.01775

Inclination

63.4015°

RAAN

186.634°

Arg. of periapsis

0.6021°

True anomaly

359.50122°

Mean anomaly

359.5187°

Eccentric anomaly

359.51°

Mean motion

3.36442 °/min

Orbital period

107 mins

BSTAR

0.00002447

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Other satellites on launch #14 in the year 2021 (2021-02-24 UTC)

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YAOGAN-31 G 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 13:01:58.187Z	296.391° NW	2026-06-22 13:06:58.187Z	248.43° W	22.541°	2026-06-22 13:11:58.187Z	203.47° SW
5 mins	2026-06-23 01:02:58.187Z	129.435° SE	2026-06-23 01:04:58.187Z	107.53° ESE	16.337°	2026-06-23 01:07:58.187Z	76.47° E
11 mins	2026-06-23 02:49:58.187Z	219.521° SW	2026-06-23 02:54:58.187Z	335.396° NNW	44.219°	2026-06-23 03:00:58.187Z	31.714° NE
8 mins	2026-06-23 04:42:58.187Z	291.245° WNW	2026-06-23 04:45:58.187Z	322.748° NNW	18.452°	2026-06-23 04:50:58.187Z	11.643° NNE
6 mins	2026-06-23 08:31:58.187Z	3.898° NNE	2026-06-23 08:33:58.187Z	21.97° NNE	14.005°	2026-06-23 08:37:58.187Z	55.917° ENE
12 mins	2026-06-23 10:20:58.187Z	339.419° N	2026-06-23 10:26:58.187Z	52.716° ENE	35.503°	2026-06-23 10:32:58.187Z	116.779° SE

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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-31 G, 47691 on other resources

View YAOGAN-31 G, 47691 on NASA - NSSDCA Website

View YAOGAN-31 G, 47691 on Heavens-Above

View YAOGAN-31 G, 47691 on Keep Track

View YAOGAN-31 G, 47691 on Celestrak

View YAOGAN-31 G, 47691 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-31 G, 47691

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 23 hours ago

TLE from 23 hours ago

TLE epoch observation values (Epoch: 2026-06-21T13:13:38.141Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #14 in the year 2021 (2021-02-24 UTC)

YAOGAN-31 G Visibility forecast

Co-orbital & Co-planar RSOs

Check out YAOGAN-31 G, 47691 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 23 hours ago