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YAOGAN-39 04C, 58145

Orbit data source: Space-Track

YAOGAN-39 04C, 58145 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Mon, 23 Oct 2023 UTC via a CHANG ZHENG 2D launch vehicle from the Xichang Space Center, China (XSC). 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/58145?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

58145, 2023-163E

Orbit

LEO

Last TLE update

9 hours ago

Origin

Equipment Development Department of the Central Military Commission (China) (CN / PRC)

Manufacturer

DFH

Mission

Operational Defense Sigint

Bus & Motor

Unknown

Mass

~300 kg wet, ~300 kg dry

Launch date (UTC)

2023-10-23 (2 years ago)

Launch vehicle

CHANG ZHENG 2D

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 2.5 m

Radar Cross Section

11.063 m², Large (>1 m²)

Expand to show TLE details & history

TLE from 9 hours ago

0 YAOGAN-39 04C
1 58145U 23163E   25199.58598105  .00004754  00000-0  23821-3 0  9994
2 58145  34.9934 288.4326 0003715  15.5841 344.4986 15.16776508 96627

Epoch: 2025-07-18T14:03Z

TLE epoch observation values (Epoch: 2025-07-18T14:03:48.762Z)

Latitude

0°

Longitude

140.84411°

Altitude

512.033 km

Speed

7.611 km/s

True Right ascension

19h 13m 43s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow at epoch

Visualization orbit readout

Latitude

-33.74472°

Longitude

30.13698°

Altitude

525.649 km

Speed

7.6 km/s

Apparent Right ascension

11h 42m 36s

Apparent Declination

-83° 51' 42"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

11:52:20

Azimuth

180.313° SSW

Elevation

-33.783°

Doppler factor

Orbital elements

Apogee altitude

521.395 km

Perigee altitude

516.271 km

Semi-major axis

6,896.97 km

Eccentricity

0.00037

Inclination

34.9934°

RAAN

288.4326°

Arg. of periapsis

15.5841°

True anomaly

344.48722°

Mean anomaly

344.4986°

Eccentric anomaly

344.49291°

Mean motion

3.78927 °/min

Orbital period

95.01 mins

BSTAR

0.00023821

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Other satellites on launch #163 in the year 2023 (2023-10-23 UTC)

YAOGAN-39 04A, 58141

CZ-2D R/B, 58142 (Decayed)

YAOGAN-39 04B, 58143

CZ-2D DEB, 58144 (Decayed)

YAOGAN-39 04C Visibility forecast

Observer location: undefined°, undefined°

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.
4 mins	2025-07-19 09:14:47.306Z	186.026° SSW	2025-07-19 09:16:47.306Z	152.737° SSE	14.836°	2025-07-19 09:18:47.306Z	121.147° SE
6 mins	2025-07-19 10:53:47.306Z	227.092° WSW	2025-07-19 10:56:47.306Z	154.133° SSE	28.34°	2025-07-19 10:59:47.306Z	105.404° ESE
6 mins	2025-07-19 12:33:47.306Z	244.91° WSW	2025-07-19 12:35:47.306Z	202.516° SW	30.805°	2025-07-19 12:39:47.306Z	117.453° SE
4 mins	2025-07-19 14:14:47.306Z	225.785° WSW	2025-07-19 14:15:47.306Z	205.349° SW	19.45°	2025-07-19 14:18:47.306Z	153.01° SSE

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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Check out YAOGAN-39 04C, 58145 on other resources

View YAOGAN-39 04C, 58145 on NASA - NSSDCA Website

View YAOGAN-39 04C, 58145 on Heavens-Above

View YAOGAN-39 04C, 58145 on Keep Track

View YAOGAN-39 04C, 58145 on Celestrak

View YAOGAN-39 04C, 58145 on Gunter's Space Page

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