HJ-2A, 46478
Orbit data source: Space-Track
HJ-2A, 46478 is a payload satellite owned by CRESDA (CN) in SSO that was launched on Sun, 27 Sep 2020 UTC via a CHANG ZHENG 4B launch vehicle from the Taiyaun Space Center, China (TSC). 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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46478 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH
Mission
Operational Civil Science
Bus & Motor
CAST-2000, Unknown motor
Mass
510 kg wet, 510 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, Unknown HBR
Radar Cross Section
2.715 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 12 hours ago
TLE from 12 hours ago
0 HJ-2A
1 46478U 20067A 25261.28401084 .00000770 00000-0 11779-3 0 9999
2 46478 97.9080 340.7248 0004266 61.2113 298.9525 14.76481643268138Epoch: 2025-09-18T06:48Z
TLE epoch observation values (Epoch: 2025-09-18T06:48:58.536Z)
Latitude
-0.00003°
Longitude
-118.96691°
Altitude
642.02 km
Speed
7.538 km/s
True Right ascension
22h 42m 53s
True Declination
0° 00' 00"
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
11:20:40
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
640.491 km
Perigee altitude
634.505 km
Semi-major axis
7,015.635 km
Eccentricity
0.00043
Inclination
97.908°
RAAN
340.7248°
Arg. of periapsis
61.2113°
True anomaly
298.90971°
Mean anomaly
298.9525°
Eccentric anomaly
298.93111°
Mean motion
3.69354 °/min
Orbital period
97.47 mins
BSTAR
0.00011779
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Other satellites on launch #67 in the year 2020 (2020-09-27 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.HJ-2A 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-09-18 18:45:26.022Z | 357.757° N | 2025-09-18 18:49:26.022Z | 289.62° WNW | 33.899° | 2025-09-18 18:53:26.022Z | 218.387° SW |
| 6 mins | 2025-09-19 05:43:26.022Z | 190.514° SSW | 2025-09-19 05:45:26.022Z | 233.175° WSW | 38.082° | 2025-09-19 05:49:26.022Z | 335.246° NNW |
| 5 mins | 2025-09-19 17:34:26.022Z | 53.005° ENE | 2025-09-19 17:36:26.022Z | 94.422° ESE | 25.982° | 2025-09-19 17:39:26.022Z | 149.74° 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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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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