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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

Last TLE update

20 hours ago

Origin

Intelsat (Unknown / ITSO)

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)

Expand to show TLE details & history

TLE from 20 hours ago

0 INTELSAT 31
1 41581U 16035A   25170.55566483 -.00000138  00000-0  00000-0 0  9994
2 41581   0.0156 301.3205 0001989 290.6692 140.9959  1.00268865 33041

Epoch: 2025-06-19T13:20Z

TLE epoch observation values (Epoch: 2025-06-19T13:20:09.441Z)

Latitude

0.02323°

Longitude

-95.06506°

Altitude

35,793.41 km

Speed

3.074 km/s

True Right ascension

00h 51m 59s

True Declination

0° 01' 24"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

-0.00103°

Longitude

-150.08579°

Altitude

35,786.309 km

Speed

3.075 km/s

Apparent Right ascension

21h 17m 08s

Apparent Declination

-6° 13' 16"

Sunlit

Object is in daylight

Visualization observer readout

Local Sidereal Time

20:31:41

Azimuth

164.544° S

Elevation

42.686°

Doppler factor

Orbital elements

Apogee altitude

35,796.871 km

Perigee altitude

35,780.097 km

Semi-major axis

42,166.621 km

Eccentricity

0.0002

Inclination

0.0156°

RAAN

301.3205°

Arg. of periapsis

290.6692°

True anomaly

Unknown

Mean anomaly

140.9959°

Eccentric anomaly

Unknown

Mean motion

0.25066 °/min

Orbital period

1,436.19 mins

BSTAR

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41581 neighbors

Authenticating...

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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

INTELSAT 31 Visibility forecast

Observer location: undefined°, undefined°

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	2025-06-20 09:36:44.604Z	164.55° S	2025-06-20 16:56:44.604Z	164.589° S	34.149°	2025-06-21 09:36:44.604Z	164.564° S

Authenticating...

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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.