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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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Iframe URL

https://www.satcat.com/sats-embedded/38991?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

38991, 2012-062A

Orbit

GEO

Country

Unknown / BRAZ

Related business

Embratel (Brazilian Telecommunications Company) (BR)

Manufacturer

OSC

Mission

Operational Commercial Communications

Bus & Motor

STAR-2.4E, IHI

Mass

3,226 kg wet, ~1,530 kg dry

Launch date (UTC)

2012-11-10 (13 years ago)

Launch vehicle

ARIANE 5ECA

Launch site

French Guiana (FRGUI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 11.5 m

Radar Cross Section

29.105 m², Large (>1 m²)

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Last TLE update: 12 hours ago

TLE from 12 hours ago

0 STARONE C3
1 38991U 12062A   25261.13896712 -.00000270  00000-0  00000-0 0  9994
2 38991   0.0324 269.6597 0002535 289.0550 133.6390  1.00271533 47029

Epoch: 2025-09-18T03:20Z

TLE epoch observation values (Epoch: 2025-09-18T03:20:06.759Z)

Latitude

0.02061°

Longitude

-74.95644°

Altitude

35,793.582 km

Speed

3.074 km/s

True Right ascension

22h 09m 30s

True Declination

0° 01' 14"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

08:08:25

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,798.425 km

Perigee altitude

35,777.047 km

Semi-major axis

42,165.873 km

Eccentricity

0.00025

Inclination

0.0324°

RAAN

269.6597°

Arg. of periapsis

289.055°

True anomaly

133.66002°

Mean anomaly

133.639°

Eccentric anomaly

133.64951°

Mean motion

0.25067 °/min

Orbital period

1,436.15 mins

BSTAR

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Other satellites on launch #62 in the year 2012 (2012-11-10 UTC)

EUTE 21B, 38992

ARIANE 5 R/B, 38993

ARIANE 5 DEB (SYLDA), 38994 (Decayed)

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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	2025-09-18 15:17:42.679Z	137.884° SSE	2025-09-19 05:34:42.679Z	137.836° SSE	29.465°	2025-09-19 15:17:42.679Z	137.887° 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

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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out STARONE C3, 38991 on other resources

View STARONE C3, 38991 on NASA - NSSDCA Website

View STARONE C3, 38991 on Heavens-Above

View STARONE C3, 38991 on Keep Track

View STARONE C3, 38991 on Celestrak

View STARONE C3, 38991 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

STARONE C3, 38991

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 12 hours ago

TLE from 12 hours ago

TLE epoch observation values (Epoch: 2025-09-18T03:20:06.759Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #62 in the year 2012 (2012-11-10 UTC)

STARONE C3 Visibility forecast

38991 neighbors

Co-orbital & Co-planar RSOs

Check out STARONE C3, 38991 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 12 hours ago