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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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Iframe URL

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

Intelsat (US)

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 (9 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, Unknown HBR

Radar Cross Section

55.801 m², Large (>1 m²)

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Last TLE update: 11 hours ago

TLE from 11 hours ago

0 INTELSAT 31
1 41581U 16035A   25260.92084435 -.00000171  00000-0  00000-0 0  9994
2 41581   0.0184 221.9671 0001809   6.8044   4.7594  1.00270029 33952

Epoch: 2025-09-17T22:06Z

TLE epoch observation values (Epoch: 2025-09-17T22:06:00.951Z)

Latitude

0.01859°

Longitude

-95.05925°

Altitude

35,778.995 km

Speed

3.075 km/s

True Right ascension

15h 34m 08s

True Declination

0° 01' 07"

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

02:24:54

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,795.785 km

Perigee altitude

35,780.53 km

Semi-major axis

42,166.295 km

Eccentricity

0.00018

Inclination

0.0184°

RAAN

221.9671°

Arg. of periapsis

6.8044°

True anomaly

4.76112°

Mean anomaly

4.7594°

Eccentric anomaly

4.76026°

Mean motion

0.25067 °/min

Orbital period

1,436.18 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	2025-09-18 09:35:08.113Z	164.552° S	2025-09-19 01:44:08.113Z	164.52° S	34.144°	2025-09-19 09:35:08.113Z	164.564° 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: 11 hours ago

TLE from 11 hours ago

TLE epoch observation values (Epoch: 2025-09-17T22:06:00.951Z)

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: 11 hours ago