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HG-03, 61503

Orbit data source: Space-Track

HG-03, 61503 is a payload satellite owned by CNSA (CN) in GEO that was launched on Thu, 10 Oct 2024 UTC via a CHANG ZHENG 3B 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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Iframe URL

https://www.satcat.com/sats-embedded/61503?theme=dark&initialShowStats=false

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Identifier

61503, 2024-181A

Orbit

GEO

Country

CN / PRC

Related business

China National Space Administration (CN)

Manufacturer

CAST

Mission

Operational Civil Communications

Bus & Motor

DFH-4?, FY-25?

Mass

~4,000 kg wet, ~2,000 kg dry

Launch date (UTC)

2024-10-10 (2 years ago)

Launch vehicle

CHANG ZHENG 3B

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 10.0 m

Radar Cross Section

17.671 m², Large (>1 m²)

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Last TLE update: 5 hours ago

TLE from 5 hours ago

0 HG-03
1 61503U 24181A   26124.35876241 -.00000233  00000-0  00000+0 0  9990
2 61503   0.0447   0.6748 0001218  87.9923 185.6221  1.00273403  6389

Epoch: 2026-05-04T08:36Z

TLE epoch observation values (Epoch: 2026-05-04T08:36:37.072Z)

Latitude

-0.03962°

Longitude

-77.1222°

Altitude

35,790.747 km

Speed

3.074 km/s

True Right ascension

18h 17m 07s

True Declination

0° 02' 22"

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

21:12:05

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,792.348 km

Perigee altitude

35,782.076 km

Semi-major axis

42,165.349 km

Eccentricity

0.00012

Inclination

0.0447°

RAAN

0.6748°

Arg. of periapsis

87.9923°

True anomaly

185.62073°

Mean anomaly

185.6221°

Eccentric anomaly

185.62142°

Mean motion

0.25067 °/min

Orbital period

1,436.13 mins

BSTAR

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Other satellites on launch #181 in the year 2024 (2024-10-10 UTC)

CZ-3B R/B, 61504 (Decayed)

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HG-03 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.
1440 mins	2026-05-04 13:22:47.126Z	140.353° SSE	2026-05-04 18:28:47.126Z	140.318° SSE	30.215°	2026-05-05 13:22:47.126Z	140.348° SSE

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61503 neighbors

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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 HG-03, 61503 on other resources

View HG-03, 61503 on NASA - NSSDCA Website

View HG-03, 61503 on Heavens-Above

View HG-03, 61503 on Keep Track

View HG-03, 61503 on Celestrak

View HG-03, 61503 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

HG-03, 61503

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: 2026-05-04T08:36:37.072Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #181 in the year 2024 (2024-10-10 UTC)

HG-03 Visibility forecast

61503 neighbors

Co-orbital & Co-planar RSOs

Check out HG-03, 61503 on other resources

Documentation

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