OBJECT K, 63991
Orbit data source: Space-Track
You're viewing an Uncataloged Satellite
Recently launched and/or uncataloged satellites may have evolving metadata. Metadata may include but not limited to: Owner, Maufacturer, Bus, Motor, and Mission.
OBJECT K, 63991 is a Chinese satellite in SSO that was launched on Wed, 14 May 2025 UTC via a CHANG ZHENG 2D launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). 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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63991 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Last TLE update
8 hours ago
Origin
CN / PRCManufacturer
Unknown
Mission
Operational Commercial Technology
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 2 Pan, 0.1 m
Radar Cross Section
0.135 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & history
TLE from 8 hours ago
0 OBJECT K
1 63991U 25100K 25211.18875774 .00017201 00000-0 76804-3 0 9993
2 63991 97.4003 285.5179 0013386 17.4559 342.7134 15.21346914 11688Epoch: 2025-07-30T04:31Z
TLE epoch observation values (Epoch: 2025-07-30T04:31:48.668Z)
Latitude
-0.00007°
Longitude
-90.50644°
Altitude
496.075 km
Speed
7.621 km/s
True Right ascension
19h 02m 04s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
70.04499°
Longitude
-111.01007°
Altitude
508.583 km
Speed
7.619 km/s
Apparent Right ascension
15h 20m 56s
Apparent Declination
19° 42' 06"
Sunlit
Visualization observer readout
Local Sidereal Time
02:17:13
Azimuth
342.893° N
Elevation
-28.558°
Doppler factor
1
Orbital elements
Apogee altitude
507.946 km
Perigee altitude
489.535 km
Semi-major axis
6,876.878 km
Eccentricity
0.00134
Inclination
97.4003°
RAAN
285.5179°
Arg. of periapsis
17.4559°
True anomaly
342.66775°
Mean anomaly
342.7134°
Eccentric anomaly
342.69058°
Mean motion
3.80589 °/min
Orbital period
94.59 mins
BSTAR
0.00076804
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Other satellites on launch #100 in the year 2025 (2025-05-14 UTC)
OBJECT K Visibility forecast
Observer location: undefined°, undefined°
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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-07-30 17:43:03.947Z | 18.201° NNE | 2025-07-30 17:46:03.947Z | 75.321° E | 42.418° | 2025-07-30 17:49:03.947Z | 182.65° SSW |
| 4 mins | 2025-07-31 04:22:03.947Z | 108.279° ESE | 2025-07-31 04:24:03.947Z | 58.249° ENE | 22.242° | 2025-07-31 04:26:03.947Z | 20.313° NNE |
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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Authenticating...
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