HELLAS-SAT 2, 27811
Orbit data source: Space-Track
HELLAS-SAT 2, 27811 is a payload satellite owned by HellasSat (GR) in GEO that was launched on Tue, 13 May 2003 UTC via an ATLAS V 401 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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27811 intel report (Beta)
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Identifier
Orbit
Country
GR / GRECRelated business
Manufacturer
Astrium
Mission
Operational Commercial Communications
Bus & Motor
EUROSTAR 2000+, R-4D-11-300
Mass
3,250 kg wet, ~1,729 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan + 2 Dish, 16.0 m
Radar Cross Section
23.451 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 5 days ago
TLE from 5 days ago
0 HELLAS-SAT 2
1 27811U 03020A 26154.99272720 -.00000074 00000-0 00000-0 0 9992
2 27811 7.3221 68.0407 0002894 359.0239 172.7588 1.00272321 42715Epoch: 2026-06-03T23:49Z
TLE epoch observation values (Epoch: 2026-06-03T23:49:31.630Z)
Latitude
1.0226°
Longitude
-9.9255°
Altitude
35,797.984 km
Speed
3.074 km/s
True Right ascension
15h 59m 35s
True Declination
1° 01' 18"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
11:19:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
35,799.692 km
Perigee altitude
35,775.287 km
Semi-major axis
42,165.627 km
Eccentricity
0.00029
Inclination
7.3221°
RAAN
68.0407°
Arg. of periapsis
359.0239°
True anomaly
172.76298°
Mean anomaly
172.7588°
Eccentric anomaly
172.76089°
Mean motion
0.25067 °/min
Orbital period
1,436.14 mins
BSTAR
0
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Other satellites on launch #20 in the year 2003 (2003-05-13 UTC)
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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.HELLAS-SAT 2 Visibility
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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. |
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| HELLAS-SAT 2 is likely not visible in the next few days. |
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27811 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
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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