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SES 19, 55971

Orbit data source: Space-Track

SES 19, 55971 is a payload satellite owned by SES (LU) in GEO that was launched on Fri, 17 Mar 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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 src="https://www.satcat.com/sats-embedded/55971?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

https://www.satcat.com/sats-embedded/55971?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55971, 2023-038B

Orbit

GEO

Country

LU / SES

Related business

SES S.A. (LU)

Manufacturer

NGIS SSG

Mission

Operational Commercial Communications

Bus & Motor

GEOSTAR-3, BT-4?

Mass

3,650 kg wet, 1,280 kg dry

Launch date (UTC)

2023-03-17 (3 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Eastern Test Range (AFETR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 11.5 m

Radar Cross Section

29.373 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 2 days ago

TLE from 2 days ago

0 SES 19
1 55971U 23038B   26171.35044763  .00000083  00000-0  00000+0 0  9992
2 55971   0.0305 294.0186 0001709 159.7518 166.0491  1.00270933 12128

Epoch: 2026-06-20T08:24Z

TLE epoch observation values (Epoch: 2026-06-20T08:24:38.675Z)

Latitude

-0.03167°

Longitude

-134.89098°

Altitude

35,793.352 km

Speed

3.074 km/s

True Right ascension

17h 19m 20s

True Declination

0° 01' 54"

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

21:36:56

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,795.11 km

Perigee altitude

35,780.698 km

Semi-major axis

42,166.041 km

Eccentricity

0.00017

Inclination

0.0305°

RAAN

294.0186°

Arg. of periapsis

159.7518°

True anomaly

166.05382°

Mean anomaly

166.0491°

Eccentric anomaly

166.05146°

Mean motion

0.25067 °/min

Orbital period

1,436.16 mins

BSTAR

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Computing Atmospheric mass density...

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Other satellites on launch #38 in the year 2023 (2023-03-17 UTC)

SES 18, 55970

FALCON 9 R/B, 55972

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You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.

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SES 19 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	2026-06-22 10:34:54.345Z	221.744° SW	2026-06-22 20:11:54.345Z	221.77° SW	29.599°	2026-06-23 10:34:54.345Z	221.746° SW

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55971 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 SES 19, 55971 on other resources

View SES 19, 55971 on NASA - NSSDCA Website

View SES 19, 55971 on Heavens-Above

View SES 19, 55971 on Keep Track

View SES 19, 55971 on Celestrak

View SES 19, 55971 on Gunter's Space Page

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

SES 19, 55971

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 2 days ago

TLE from 2 days ago

TLE epoch observation values (Epoch: 2026-06-20T08:24:38.675Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #38 in the year 2023 (2023-03-17 UTC)

SES 19 Visibility forecast

55971 neighbors

Co-orbital & Co-planar RSOs

Check out SES 19, 55971 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 2 days ago