OBJECT E, 63523
Orbit data source: Space-Track
OBJECT E, 63523 is a satellite owned by Tsinghua (CN) in LEO that was launched on Thu, 29 Apr 2021 UTC via a CHANG ZHENG 7 launch vehicle from the Wenchang Satellite Launch Center (WSC). Unknown objects in Earth's orbit typically refer to objects detected orbiting the Earth but have not yet been identified or cataloged. These objects could be anything from previously untracked satellites, spent rocket stages, debris from satellite collisions, or even natural meteoroids temporarily captured by Earth's gravity.
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63523 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
Tsinghua
Mission
Amateur Imaging
Bus & Motor
NAXING, Unknown motor
Mass
20 kg wet, 20 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box, 0.3 m
Radar Cross Section
0.240 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 13 hours ago
TLE from 13 hours ago
0 OBJECT E
1 63523U 21035E 26259.88218426 .00073901 00000-0 57822-3 0 9990
2 63523 41.4533 80.9857 0001170 355.7215 4.3617 15.70625540 82797Epoch: 2026-09-16T21:10Z
TLE epoch observation values (Epoch: 2026-09-16T21:10:20.720Z)
Latitude
0°
Longitude
127.57197°
Altitude
355.919 km
Speed
7.698 km/s
True Right ascension
05h 23m 56s
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
03:01:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
360.141 km
Perigee altitude
358.565 km
Semi-major axis
6,737.49 km
Eccentricity
0.00012
Inclination
41.4533°
RAAN
80.9857°
Arg. of periapsis
355.7215°
True anomaly
4.36272°
Mean anomaly
4.3617°
Eccentric anomaly
4.36221°
Mean motion
3.92461 °/min
Orbital period
91.73 mins
BSTAR
0.00057822
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Other satellites on launch #35 in the year 2021 (2021-04-29 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.OBJECT E 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-09-17 15:42:21.489Z | 215.66° SW | 2026-09-17 15:44:21.489Z | 167.256° S | 30.722° | 2026-09-17 15:46:21.489Z | 100.361° ESE |
| 4 mins | 2026-09-17 17:19:21.489Z | 269.033° W | 2026-09-17 17:20:21.489Z | 290.129° WNW | 61.53° | 2026-09-17 17:23:21.489Z | 75.956° E |
| 4 mins | 2026-09-17 18:55:21.489Z | 287.572° WNW | 2026-09-17 18:57:21.489Z | 48.123° ENE | 62.298° | 2026-09-17 18:59:21.489Z | 89.659° E |
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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