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INTELSAT 31, 41581

Orbit data source: Space-Track

INTELSAT 31, 41581 is an American payload satellite in GEO that was launched on Thu, 09 Jun 2016 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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https://www.satcat.com/sats-embedded/41581?theme=dark&initialShowStats=false

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Identifier

41581, 2016-035A

Orbit

GEO

Country

Unknown / ITSO

Related business

SES S.A. (LU)

Manufacturer

SS/Loral (MDA)

Mission

Operational Commercial Communications

Bus & Motor

LS-1300S, R-4D-11

Mass

6,450 kg wet, 3,000 kg dry

Launch date (UTC)

2016-06-09 (10 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, 16.2 m

Radar Cross Section

55.801 m², Large (>1 m²)

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Last TLE update: 12 hours ago

TLE from 12 hours ago

0 INTELSAT 31
1 41581U 16035A   25353.51372917 -.00000126  00000-0  00000+0 0  9996
2 41581   0.0258 271.2551 0002165 288.2416 338.7582  1.00268470 34881

Epoch: 2025-12-19T12:19Z

TLE epoch observation values (Epoch: 2025-12-19T12:19:46.200Z)

Latitude

-0.02338°

Longitude

-95.06137°

Altitude

35,778.554 km

Speed

3.075 km/s

True Right ascension

11h 52m 56s

True Declination

0° 01' 24"

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

23:12:57

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,797.724 km

Perigee altitude

35,779.466 km

Semi-major axis

42,166.732 km

Eccentricity

0.00022

Inclination

0.0258°

RAAN

271.2551°

Arg. of periapsis

288.2416°

True anomaly

338.74921°

Mean anomaly

338.7582°

Eccentric anomaly

338.7537°

Mean motion

0.25066 °/min

Orbital period

1,436.2 mins

BSTAR

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Other satellites on launch #35 in the year 2016 (2016-06-09 UTC)

BREEZE-M R/B, 41582

BREEZE-M DEB (TANK), 41583

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INTELSAT 31 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	2025-12-20 00:18:03.141Z	164.518° S	2025-12-20 04:33:03.141Z	164.558° S	34.146°	2025-12-21 00:18:03.141Z	164.537° S

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41581 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 INTELSAT 31, 41581 on other resources

View INTELSAT 31, 41581 on NASA - NSSDCA Website

View INTELSAT 31, 41581 on Heavens-Above

View INTELSAT 31, 41581 on Keep Track

View INTELSAT 31, 41581 on Celestrak

View INTELSAT 31, 41581 on Gunter's Space Page

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

INTELSAT 31, 41581

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: 2025-12-19T12:19:46.200Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #35 in the year 2016 (2016-06-09 UTC)

INTELSAT 31 Visibility forecast

41581 neighbors

Co-orbital & Co-planar RSOs

Check out INTELSAT 31, 41581 on other resources

Documentation

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