NAXING 1, 28221
Orbit data source: Space-Track
NAXING 1, 28221 is a payload satellite owned by CASC (CN) in SSO that was launched on Sun, 18 Apr 2004 UTC via a CHANG ZHENG 2C 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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28221 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
Tsinghua
Mission
Civil Technology
Bus & Motor
NX, Unknown motor
Mass
25 kg wet, 25 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box, 0.2 m
Radar Cross Section
0.060 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 NAXING 1
1 28221U 04012B 26259.04821873 .00001640 00000-0 11643-3 0 9998
2 28221 97.9987 290.2527 0011589 140.3528 219.8548 15.06185769220920Epoch: 2026-09-16T01:09Z
TLE epoch observation values (Epoch: 2026-09-16T01:09:26.098Z)
Latitude
0.00005°
Longitude
-82.11146°
Altitude
557.089 km
Speed
7.58 km/s
True Right ascension
19h 21m 00s
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
02:59:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
552.902 km
Perigee altitude
536.856 km
Semi-major axis
6,923.016 km
Eccentricity
0.00116
Inclination
97.9987°
RAAN
290.2527°
Arg. of periapsis
140.3528°
True anomaly
219.76979°
Mean anomaly
219.8548°
Eccentric anomaly
219.81229°
Mean motion
3.76791 °/min
Orbital period
95.54 mins
BSTAR
0.00011643
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Other satellites on launch #12 in the year 2004 (2004-04-18 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.NAXING 1 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-09-17 14:24:47.215Z | 47.305° ENE | 2026-09-17 14:26:47.215Z | 86.377° E | 26.27° | 2026-09-17 14:29:47.215Z | 149.023° SSE |
| 4 mins | 2026-09-17 15:59:47.215Z | 327.843° NNW | 2026-09-17 16:01:47.215Z | 288.802° WNW | 20.54° | 2026-09-17 16:03:47.215Z | 252.074° W |
| 6 mins | 2026-09-18 02:42:47.215Z | 200.704° SSW | 2026-09-18 02:45:47.215Z | 274.204° WNW | 35.821° | 2026-09-18 02:48:47.215Z | 327.882° NNW |
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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