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HELLAS-SAT 3, 42814

Orbit data source: Space-Track

HELLAS-SAT 3, 42814 is a payload satellite owned by HellasSat (ESA) in GEO that was launched on Wed, 28 Jun 2017 UTC via an ARIANE 5ECA launch vehicle from the French Guiana (FRGUI). 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.

Not visible in the next 10 days

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<iframe src="https://www.satcat.com/sats-embedded/42814?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/42814?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

42814, 2017-040A

Orbit

GEO

Country

ESA

Related business

HellasSat (GR)

Manufacturer

Thales Alenia

Mission

Operational Commercial Communications

Bus & Motor

SPACEBUS 4000C4, S400

Mass

5,780 kg wet, ~2,500 kg dry

Launch date (UTC)

2017-06-28 (9 years ago)

Launch vehicle

ARIANE 5ECA

Launch site

French Guiana (FRGUI)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 18.5 m

Radar Cross Section

31.794 m², Large (>1 m²)

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Last TLE update: 22 hours ago

TLE from 22 hours ago

0 HELLAS-SAT 3
1 42814U 17040A   26270.27031272  .00000157  00000-0  00000-0 0  9995
2 42814   0.0756  47.3421 0001039  66.4529  28.6061  1.00273135 33837

Epoch: 2026-09-27T06:29Z

TLE epoch observation values (Epoch: 2026-09-27T06:29:15.019Z)

Latitude

0.05069°

Longitude

39.00054°

Altitude

35,781.861 km

Speed

3.075 km/s

True Right ascension

09h 29m 31s

True Declination

0° 03' 02"

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

21:49:30

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,791.668 km

Perigee altitude

35,782.906 km

Semi-major axis

42,165.424 km

Eccentricity

0.0001

Inclination

0.0756°

RAAN

47.3421°

Arg. of periapsis

66.4529°

True anomaly

28.6118°

Mean anomaly

28.6061°

Eccentric anomaly

28.60895°

Mean motion

0.25067 °/min

Orbital period

1,436.13 mins

BSTAR

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Other satellites on launch #40 in the year 2017 (2017-06-28 UTC)

ARIANE 5 DEB (SYLDA), 42817

ARIANE 5 R/B, 42816

GSAT 17, 42815

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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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HELLAS-SAT 3 Visibility

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HELLAS-SAT 3 is likely not visible in the next few days.

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42814 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 HELLAS-SAT 3, 42814 on other resources

View HELLAS-SAT 3, 42814 on NASA - NSSDCA Website

View HELLAS-SAT 3, 42814 on Heavens-Above

View HELLAS-SAT 3, 42814 on Keep Track

View HELLAS-SAT 3, 42814 on Celestrak

View HELLAS-SAT 3, 42814 on Gunter's Space Page

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

HELLAS-SAT 3, 42814

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 22 hours ago

TLE from 22 hours ago

TLE epoch observation values (Epoch: 2026-09-27T06:29:15.019Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #40 in the year 2017 (2017-06-28 UTC)

HELLAS-SAT 3 Visibility

42814 neighbors

Co-orbital & Co-planar RSOs

Check out HELLAS-SAT 3, 42814 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 22 hours ago