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: 5 hours ago
TLE from 5 hours ago
0 HG-03
1 61503U 24181A 25259.28295322 -.00000259 00000-0 00000-0 0 9994
2 61503 0.0126 129.6363 0000960 232.3295 18.1515 1.00265365 4077Epoch: 2025-09-16T06:47Z
TLE epoch observation values (Epoch: 2025-09-16T06:47:27.158Z)
Latitude
-0.02701°
Longitude
-77.21769°
Altitude
35,784.03 km
Speed
3.075 km/s
True Right ascension
01h 20m 29s
True Declination
0° 01' 37"
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
04:20:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,793.513 km
Perigee altitude
35,785.417 km
Semi-major axis
42,167.602 km
Eccentricity
0.0001
Inclination
0.0126°
RAAN
129.6363°
Arg. of periapsis
232.3295°
True anomaly
18.15493°
Mean anomaly
18.1515°
Eccentric anomaly
18.15321°
Mean motion
0.25065 °/min
Orbital period
1,436.24 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 | 2025-09-16 11:38:30.711Z | 140.471° SSE | 2025-09-16 22:23:30.711Z | 140.472° SSE | 30.246° | 2025-09-17 11:38:30.711Z | 140.499° 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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