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: 3 days ago
TLE from 3 days ago
0 OBJECT E
1 63523U 21035E 26260.96308488 .00072688 00000-0 56564-3 0 9992
2 63523 41.4537 74.3089 0001011 358.7337 1.3503 15.70761329 82963Epoch: 2026-09-17T23:06Z
TLE epoch observation values (Epoch: 2026-09-17T23:06:50.533Z)
Latitude
0.00001°
Longitude
90.70557°
Altitude
355.635 km
Speed
7.698 km/s
True Right ascension
04h 57m 14s
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
20:50:36
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
359.646 km
Perigee altitude
358.284 km
Semi-major axis
6,737.102 km
Eccentricity
0.0001
Inclination
41.4537°
RAAN
74.3089°
Arg. of periapsis
358.7337°
True anomaly
1.35057°
Mean anomaly
1.3503°
Eccentric anomaly
1.35044°
Mean motion
3.92494 °/min
Orbital period
91.72 mins
BSTAR
0.00056564
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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 | 2026-09-21 14:19:53.880Z | 226.265° WSW | 2026-09-21 14:21:53.880Z | 128.074° SE | 45.54° | 2026-09-21 14:23:53.880Z | 84.707° E |
| 4 mins | 2026-09-21 15:55:53.880Z | 277.819° WNW | 2026-09-21 15:57:53.880Z | 24.591° NE | 60.307° | 2026-09-21 15:59:53.880Z | 75.626° E |
| 4 mins | 2026-09-21 17:32:53.880Z | 286.109° WNW | 2026-09-21 17:33:53.880Z | 328.619° NNW | 82.922° | 2026-09-21 17:36:53.880Z | 101.457° ESE |
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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