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INMARSAT 5-F1, 39476

Orbit data source: Space-Track

INMARSAT 5-F1, 39476 is a payload satellite owned by INMARSAT-Ltd (UK) in GEO that was launched on Sun, 08 Dec 2013 UTC via a PROTON-M/BRIZ-M launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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/39476?theme=dark&initialShowStats=false

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Identifier

39476, 2013-073A

Orbit

GEO

Country

Related business

International Mobile Satellite Organization Ltd (GB)

Manufacturer

Boeing/ES

Mission

Operational Commercial Communications

Bus & Motor

BSS-702HP, R-4D

Mass

6,090 kg wet, ~3,500 kg dry

Launch date (UTC)

2013-12-08 (12 years ago)

Launch vehicle

PROTON-M/BRIZ-M

Launch site

Tyuratam Missile And Space Complex (TTMTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 16.9 m

Radar Cross Section

53.751 m², Large (>1 m²)

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Last TLE update: 14 hours ago

TLE from 14 hours ago

0 INMARSAT 5-F1
1 39476U 13073A   26047.33308713  .00000032  00000-0  00000-0 0  9995
2 39476   0.0141  94.6779 0000267 282.6105 311.5248  1.00272151 44368

Epoch: 2026-02-16T07:59Z

TLE epoch observation values (Epoch: 2026-02-16T07:59:38.728Z)

Latitude

-0.02894°

Longitude

62.59558°

Altitude

35,785.236 km

Speed

3.075 km/s

True Right ascension

21h 55m 20s

True Declination

0° 01' 44"

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

01:13:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,788.689 km

Perigee altitude

35,786.437 km

Semi-major axis

42,165.7 km

Eccentricity

0.00003

Inclination

0.0141°

RAAN

94.6779°

Arg. of periapsis

282.6105°

True anomaly

311.52251°

Mean anomaly

311.5248°

Eccentric anomaly

311.52365°

Mean motion

0.25067 °/min

Orbital period

1,436.15 mins

BSTAR

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Other satellites on launch #73 in the year 2013 (2013-12-08 UTC)

BREEZE-M R/B, 39494

BREEZE-M DEB (TANK), 39477

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INMARSAT 5-F1 Visibility

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INMARSAT 5-F1 is likely not visible in the next few days.

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39476 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 INMARSAT 5-F1, 39476 on other resources

View INMARSAT 5-F1, 39476 on NASA - NSSDCA Website

View INMARSAT 5-F1, 39476 on Heavens-Above

View INMARSAT 5-F1, 39476 on Keep Track

View INMARSAT 5-F1, 39476 on Celestrak

View INMARSAT 5-F1, 39476 on Gunter's Space Page

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

INMARSAT 5-F1, 39476

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 14 hours ago

TLE from 14 hours ago

TLE epoch observation values (Epoch: 2026-02-16T07:59:38.728Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #73 in the year 2013 (2013-12-08 UTC)

INMARSAT 5-F1 Visibility

39476 neighbors

Co-orbital & Co-planar RSOs

Check out INMARSAT 5-F1, 39476 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 14 hours ago