OBJECT B, 61239
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 B, 61239 is a Chinese satellite in SSO that was launched on Tue, 24 Sep 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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61239 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
None
Manufacturer
ZHWK/HITSAT
Mission
Operational Commercial Radar Imaging
Bus & Motor
ZK1, Unknown motor
Mass
~250 kg wet, ~250 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 3 Pan, 3.0 m
Radar Cross Section
3.533 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 4 days ago
TLE from 4 days ago
0 OBJECT B
1 61239U 24174B 25255.68505943 .00001473 00000-0 94458-4 0 9997
2 61239 97.4517 262.1721 0024144 151.8708 208.3832 15.09791775 53546Epoch: 2025-09-12T16:26Z
TLE epoch observation values (Epoch: 2025-09-12T16:26:29.134Z)
Latitude
-0.00001°
Longitude
23.62148°
Altitude
554.612 km
Speed
7.576 km/s
True Right ascension
17h 28m 41s
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
23:23:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
550.505 km
Perigee altitude
517.129 km
Semi-major axis
6,911.954 km
Eccentricity
0.00241
Inclination
97.4517°
RAAN
262.1721°
Arg. of periapsis
151.8708°
True anomaly
208.25203°
Mean anomaly
208.3832°
Eccentric anomaly
208.31758°
Mean motion
3.77696 °/min
Orbital period
95.31 mins
BSTAR
0.000094458
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Other satellites on launch #174 in the year 2024 (2024-09-24 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 B 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-09-16 13:15:10.734Z | 16.277° NNE | 2025-09-16 13:19:10.734Z | 139.504° SSE | 42.726° | 2025-09-16 13:22:10.734Z | 185.591° SSW |
| 5 mins | 2025-09-16 23:59:10.734Z | 119.624° SE | 2025-09-17 00:01:10.734Z | 68.53° E | 27.868° | 2025-09-17 00:04:10.734Z | 10.896° NNE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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