OBJECT F, 61899
Orbit data source: Space-Track
OBJECT F, 61899 is a Chinese satellite 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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61899 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
None
Manufacturer
Unknown
Mission
Operational Commercial Imaging
Bus & Motor
Unknown
Mass
Unknown
Launch date (UTC)
Launch vehicle
Launch site
Object type
Unknown
Shape & HBR
Box + 2 Pan, 0.5 m
Radar Cross Section
0.195 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 F
1 61899U 24205F 26120.21678522 .00009827 00000-0 53565-3 0 9993
2 61899 97.4114 192.7661 0007039 182.3009 177.8192 15.14567814 81012Epoch: 2026-04-30T05:12Z
TLE epoch observation values (Epoch: 2026-04-30T05:12:10.243Z)
Latitude
0.00001°
Longitude
-103.44315°
Altitude
530.229 km
Speed
7.595 km/s
True Right ascension
12h 51m 03s
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
15:37:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
524.119 km
Perigee altitude
514.409 km
Semi-major axis
6,897.401 km
Eccentricity
0.0007
Inclination
97.4114°
RAAN
192.7661°
Arg. of periapsis
182.3009°
True anomaly
177.82227°
Mean anomaly
177.8192°
Eccentric anomaly
177.82073°
Mean motion
3.78892 °/min
Orbital period
95.01 mins
BSTAR
0.00053565
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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 F 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-04-30 16:53:08.729Z | 51.395° ENE | 2026-04-30 16:55:08.729Z | 88.941° E | 19.795° | 2026-04-30 16:58:08.729Z | 144.296° SSE |
| 4 mins | 2026-04-30 18:28:08.729Z | 321.551° NNW | 2026-04-30 18:29:08.729Z | 299.344° NW | 21.379° | 2026-04-30 18:32:08.729Z | 240.068° WSW |
| 7 mins | 2026-05-01 05:06:08.729Z | 181.736° SSW | 2026-05-01 05:10:08.729Z | 289.612° WNW | 37.88° | 2026-05-01 05:13:08.729Z | 337.92° 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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