STARONE C3, 38991
Orbit data source: Space-Track
STARONE C3, 38991 is a payload satellite owned by Star One (BR) in GEO that was launched on Sat, 10 Nov 2012 UTC via an ARIANE 5ECA launch vehicle from the French Guiana (FRGUI). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
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38991 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
Unknown / BRAZRelated business
Manufacturer
OSC
Mission
Operational Commercial Communications
Bus & Motor
STAR-2.4E, IHI
Mass
3,226 kg wet, ~1,530 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 11.5 m
Radar Cross Section
29.105 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 STARONE C3
1 38991U 12062A 25258.78373686 -.00000267 00000-0 00000-0 0 9997
2 38991 0.0393 275.8470 0002522 280.6699 5.6317 1.00272001 47007Epoch: 2025-09-15T18:48Z
TLE epoch observation values (Epoch: 2025-09-15T18:48:34.864Z)
Latitude
-0.01591°
Longitude
-74.97804°
Altitude
35,775.424 km
Speed
3.075 km/s
True Right ascension
13h 28m 36s
True Declination
0° 00' 57"
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
02:33:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,798.239 km
Perigee altitude
35,776.971 km
Semi-major axis
42,165.742 km
Eccentricity
0.00025
Inclination
0.0393°
RAAN
275.847°
Arg. of periapsis
280.6699°
True anomaly
5.63454°
Mean anomaly
5.6317°
Eccentric anomaly
5.63312°
Mean motion
0.25067 °/min
Orbital period
1,436.15 mins
BSTAR
0
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Other satellites on launch #62 in the year 2012 (2012-11-10 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.STARONE C3 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. |
|---|---|---|---|---|---|---|---|
| 1440 mins | 2025-09-16 09:52:02.069Z | 137.88° SSE | 2025-09-17 06:32:02.069Z | 137.842° SSE | 29.467° | 2025-09-17 09:52:02.069Z | 137.882° SSE |
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38991 neighbors
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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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