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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61503 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Civil Communications
Bus & Motor
DFH-4?, FY-25?
Mass
~4,000 kg wet, ~2,000 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 10.0 m
Radar Cross Section
17.671 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 HG-03
1 61503U 24181A 25293.03695565 -.00000240 00000-0 00000-0 0 9998
2 61503 0.0198 133.1770 0000865 261.8348 289.9458 1.00273417 4417Epoch: 2025-10-20T00:53Z
TLE epoch observation values (Epoch: 2025-10-20T00:53:12.968Z)
Latitude
0.01306°
Longitude
-77.12665°
Altitude
35,784.371 km
Speed
3.075 km/s
True Right ascension
21h 39m 41s
True Declination
0° 00' 47"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
04:50:24
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,790.855 km
Perigee altitude
35,783.561 km
Semi-major axis
42,165.345 km
Eccentricity
0.00009
Inclination
0.0198°
RAAN
133.177°
Arg. of periapsis
261.8348°
True anomaly
289.93648°
Mean anomaly
289.9458°
Eccentric anomaly
289.94114°
Mean motion
0.25067 °/min
Orbital period
1,436.13 mins
BSTAR
0
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Other satellites on launch #181 in the year 2024 (2024-10-10 UTC)
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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.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 | 2025-10-21 09:50:29.633Z | 140.338° SSE | 2025-10-21 23:34:29.633Z | 140.335° SSE | 30.198° | 2025-10-22 09:50:29.633Z | 140.335° 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
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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