OBJECT K, 61903
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, 61903 is a satellite owned by Yunyao yuhang (CN) in SSO that was launched on Mon, 11 Nov 2024 UTC via a LIJIAN-1 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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61903 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
None
Manufacturer
Changguang WJ
Mission
Operational Commercial Weather
Bus & Motor
YY-1, Unknown motor
Mass
~50 kg wet, ~50 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 1 Pan, 2.5 m
Radar Cross Section
5.339 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 21 hours ago
TLE from 21 hours ago
0 OBJECT K
1 61903U 24205K 25252.26198197 .00010630 00000-0 47389-3 0 9995
2 61903 97.4433 325.9925 0009941 314.0725 45.9692 15.21554480 45796Epoch: 2025-09-09T06:17Z
TLE epoch observation values (Epoch: 2025-09-09T06:17:15.242Z)
Latitude
0.00003°
Longitude
-116.87629°
Altitude
499.492 km
Speed
7.617 km/s
True Right ascension
21h 43m 58s
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
19:36:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
504.952 km
Perigee altitude
491.281 km
Semi-major axis
6,876.254 km
Eccentricity
0.00099
Inclination
97.4433°
RAAN
325.9925°
Arg. of periapsis
314.0725°
True anomaly
46.05117°
Mean anomaly
45.9692°
Eccentric anomaly
46.01018°
Mean motion
3.80641 °/min
Orbital period
94.58 mins
BSTAR
0.00047389
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Other satellites on launch #205 in the year 2024 (2024-11-11 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 K 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-09-10 04:31:17.101Z | 133.412° SE | 2025-09-10 04:34:17.101Z | 62.849° ENE | 28.726° | 2025-09-10 04:37:17.101Z | 7.598° NNE |
| 5 mins | 2025-09-10 17:35:17.101Z | 30.412° NE | 2025-09-10 17:37:17.101Z | 82.591° E | 37.259° | 2025-09-10 17:40:17.101Z | 172.464° S |
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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