OBJECT B, 61239
Orbit data source: Space-Track
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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Identifier
Orbit
Country
CN / PRCRelated business
None
Manufacturer
Unknown
Mission
Operational Commercial Radar Imaging
Bus & Motor
Unknown
Mass
Unknown
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: 3 hours ago
TLE from 3 hours ago
0 OBJECT B
1 61239U 24174B 26279.21525618 .00002735 00000-0 16801-3 0 9991
2 61239 97.4541 279.6921 0019000 266.7561 93.1495 15.10762081112154Epoch: 2026-10-06T05:09Z
TLE epoch observation values (Epoch: 2026-10-06T05:09:58.133Z)
Latitude
-0.00008°
Longitude
-172.68311°
Altitude
537.698 km
Speed
7.593 km/s
True Right ascension
18h 38m 46s
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
02:01:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
543.982 km
Perigee altitude
517.728 km
Semi-major axis
6,908.992 km
Eccentricity
0.0019
Inclination
97.4541°
RAAN
279.6921°
Arg. of periapsis
266.7561°
True anomaly
93.36687°
Mean anomaly
93.1495°
Eccentric anomaly
93.25819°
Mean motion
3.77939 °/min
Orbital period
95.25 mins
BSTAR
0.00016801
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-10-06 12:07:05.610Z | 59.443° ENE | 2026-10-06 12:09:05.610Z | 96.109° ESE | 18.438° | 2026-10-06 12:11:05.610Z | 131.297° SE |
| 5 mins | 2026-10-06 13:41:05.610Z | 339.491° N | 2026-10-06 13:43:05.610Z | 298.487° NW | 28.994° | 2026-10-06 13:46:05.610Z | 234.21° WSW |
| 5 mins | 2026-10-07 00:23:05.610Z | 183.705° SSW | 2026-10-07 00:25:05.610Z | 266.852° W | 66.247° | 2026-10-07 00:28:05.610Z | 340.145° N |
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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