SmallGEO
OHB System AG
European small geostationary satellite platform for commercial telecommunications missions up to 3,500 kg launch mass.
Typed specifications32 values
Discloses 5 of 7 fields engineers filter by in this category (category median 3).
- Mass
- 980 kg MTG Common Platform (based on SmallGEO), platform mass · datasheet p.6
- Envelope (L×W×H)
- 2,560 x 2,296 x 3,084 mm MTG Common Platform (based on SmallGEO), PF dimensions · datasheet p.6
- Data interface
- MIL-STD-1553 standard data bus · datasheet p.6 SpaceWire standard data bus
- Design lifetime
- 15 years telecommunication applications (propellant life up to 20 years) · datasheet p.2 10 years min · meteorology / EO applications: over 10 years
- Orbit
- GEO geostationary satellite platform · datasheet p.2
- Max payload mass
- 650 kg max · meteorology / EO applications · datasheet p.2 900 kg max · telecommunication applications (individually permitted payloa…
- Power available to payload
- 1 350 W max · meteorology / EO applications · datasheet p.2 10 000 W max · telecommunication applications (Electra: payload power of up …
- Power generation (orbit average)
- 2 000 W solar generator, typical, Earth observation · datasheet p.6 11 000 W max · solar generator, telecom
- Battery capacity
- 3 470 Wh MTG Common Platform (based on SmallGEO), battery capacity; Do… · datasheet p.6
- Attitude control
- 3-axis stabilised 3-axis-stabilized geostationary satellites with very high poi… · datasheet p.2
- Pointing accuracy
- 0.06 ° absolute pointing error, MTG Common Platform (based on SmallGEO) · datasheet p.6
- Propulsion
- included full electric propulsion (telecom); bi-propellant system (met… · datasheet p.2
- Payload data downlink rate
- 400 000 kbps max · Ka-band, MTG Common Platform (based on SmallGEO); S-band 4 kbps · datasheet p.6
- Radio band
- optical optical laser communication on EDRS-C · datasheet p.2 other P-band and C-band | X payload frequencies | Ka payload frequencies; Ka-band payload downlink (MTG, EDRS-C) | S payload frequencies; S-band telemetry (MTG, EDRS-C) +2
- Subsystems included
- propulsion full electrical propulsion system implemented; bi-propellant … · datasheet p.2
- Max satellite wet mass
- 3 800 kg launch mass, SmallGEO for meteorology / EO applications (bi-p… · datasheet p.2 3 500 kg max · satellite launch mass, varies between 2,500 kg and 3,500 kg d…
- Deployables
- other accommodation of 4 large side deployable and 4 Earth deck ref… · datasheet p.5
- Deployables (as printed)
- Accommodation of 4 large side deployable and 4 Earth deck reflectors Electra configuration · datasheet p.5
- Flight heritage
- H36W-1 (first SmallGEO satellite, 3200 kg, launched on Soyuz from Kourou, handed over to Hispasat in June 2017); missions: EDRS-C, Electra, Heinrich Hertz; six platforms for Meteosat Third Generation datasheet p.4
- Satellite class
- GEO multi-purpose geostationary satellite platform · datasheet p.2
Each value is typed with its unit and measurement condition and cites the datasheet page it was taken from. Nothing is guessed: a field that is absent here has not been published by the manufacturer. machine-extracted ✓ checked by NewSpace Market ✓ manufacturer confirmed by the manufacturer.
As published by the supplier8 lines, in the manufacturer's own wording
- Orbit
- Geostationary Earth Orbit (GEO)
- Launch mass
- ~3,200–3,500 kg
- Dry mass
- ~1,700 kg
- Payload capacity
- Up to 300 kg
- Payload power
- Up to 3 kW
- Platform power
- > 6 kW (beginning of life)
- Design lifetime
- Up to 15 years
- Propulsion
- Bipropellant main engine (S400) + 8x SPT-100 plasma thrusters
About
SmallGEO (also designated LUXOR) is OHB System AG’s proprietary geostationary satellite platform, developed under ESA’s ARTES 11 programme to give European industry a competitive bus in the commercial small GEO telecom market. The platform is designed for payloads up to 300 kg and 3 kW payload power, with a launch mass around 3,200–3,500 kg and an operational lifetime of up to 15 years.
The platform has flown twice: as Hispasat 36W-1 (launched January 2017 on Soyuz-2 ST-B, with 24 Ku-band and 3 Ka-band transponders) and as the German national technology demonstration satellite Heinrich Hertz (H2Sat, launched July 2023, ~3,408 kg). Propulsion combines a bipropellant S400 main engine with electric SPT-100 plasma thrusters for on-orbit manoeuvring and station-keeping.
Documentation
- 2018_OHB-Broschuere_SmallGEO.pdf PDF source: www.ohb-system.de ↗
- OHB-System_Satellite_Platforms_2018.pdf PDF source: www.ohb-system.de ↗
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