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: 5 hours ago
TLE from 5 hours ago
0 OBJECT F
1 61899U 24205F 26065.89230480 .00014397 00000-0 72855-3 0 9993
2 61899 97.4179 139.7023 0008321 246.9695 113.0662 15.17093611 72789Epoch: 2026-03-06T21:24Z
TLE epoch observation values (Epoch: 2026-03-06T21:24:55.134Z)
Latitude
0.00003°
Longitude
13.85078°
Altitude
519.968 km
Speed
7.602 km/s
True Right ascension
09h 18m 48s
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
06:18:55
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
517.333 km
Perigee altitude
505.867 km
Semi-major axis
6,889.737 km
Eccentricity
0.00083
Inclination
97.4179°
RAAN
139.7023°
Arg. of periapsis
246.9695°
True anomaly
113.15389°
Mean anomaly
113.0662°
Eccentric anomaly
113.11005°
Mean motion
3.79524 °/min
Orbital period
94.86 mins
BSTAR
0.00072855
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-03-07 03:54:05.784Z | 105.949° ESE | 2026-03-07 03:56:05.784Z | 72.793° E | 15.838° | 2026-03-07 03:58:05.784Z | 36.398° NE |
| 5 mins | 2026-03-07 05:28:05.784Z | 212.487° SW | 2026-03-07 05:30:05.784Z | 261.693° W | 27.397° | 2026-03-07 05:33:05.784Z | 323.657° NNW |
| 4 mins | 2026-03-07 17:00:05.784Z | 56.163° ENE | 2026-03-07 17:02:05.784Z | 101.453° ESE | 21.903° | 2026-03-07 17:04:05.784Z | 141.583° SSE |
| 4 mins | 2026-03-07 18:34:05.784Z | 325.386° NNW | 2026-03-07 18:36:05.784Z | 283.171° WNW | 19.42° | 2026-03-07 18:38:05.784Z | 246.902° WSW |
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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