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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 (8 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: 15 hours ago

TLE from 15 hours ago

0 HELLAS-SAT 3
1 42814U 17040A   25261.16150057  .00000132  00000-0  00000-0 0  9998
2 42814   0.0712  51.9969 0001618  66.8624 335.6351  1.00268756 30080

Epoch: 2025-09-18T03:52Z

TLE epoch observation values (Epoch: 2025-09-18T03:52:33.649Z)

Latitude

0.02255°

Longitude

39.02109°

Altitude

35,780.736 km

Speed

3.075 km/s

True Right ascension

06h 17m 57s

True Declination

0° 01' 21"

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

12:10:24

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

35,795.337 km

Perigee altitude

35,781.692 km

Semi-major axis

42,166.651 km

Eccentricity

0.00016

Inclination

0.0712°

RAAN

51.9969°

Arg. of periapsis

66.8624°

True anomaly

335.62745°

Mean anomaly

335.6351°

Eccentric anomaly

335.63127°

Mean motion

0.25066 °/min

Orbital period

1,436.19 mins

BSTAR

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

GSAT 17, 42815

ARIANE 5 R/B, 42816

ARIANE 5 DEB (SYLDA), 42817

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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: 15 hours ago

TLE from 15 hours ago

TLE epoch observation values (Epoch: 2025-09-18T03:52:33.649Z)

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: 15 hours ago