SITAEL S-75 — All-Electric Microsatellite Platform
SITAEL S.p.A.
STRIVING/SITAEL's S-75 is a 75 kg all-electric LEO microsatellite bus with Hall effect propulsion: 25 kg / 30 W avg / 200 W peak payload capacity, 320×320×400 mm payload volume — designed for IOD/IOV missions and Earth observation constellations.
Typed specifications32 values
Discloses 5 of 7 fields engineers filter by in this category (category median 3).
- Mass
- 75 kg product page
- Envelope (L×W×H)
- 340 x 340 x 750 mm S/C envelope LxWxH · datasheet p.2
- Power consumption
- 30 W product page 200 W
- Design lifetime
- 3 years max · lifetime up to 3 years · datasheet p.2
- Orbit
- LEO targeted mission: EO SSO in LEO @450-800 km · datasheet p.2 SSO targeted mission: EO SSO in LEO @450-800 km
- Max payload mass
- 20 kg max · P/L max mass · datasheet p.2
- Payload envelope (L × W × H)
- 320x320x400 mm P/L allowable volume, printed 320x320x400 mm3 · datasheet p.2
- Power available to payload
- 30 W max · P/L avg power consumption up to 30 W (optional, depending on … · datasheet p.2
- Onboard storage for payload data
- 64 GB max · PDHT data storage up to 64 GB · datasheet p.2
- Power generation (orbit average)
- 160 W peak; S/C power generation · datasheet p.2 100 W max · S/C power generation, orbit average, up to 100 W (optional, d…
- Battery capacity
- 340 Wh Li-Ion · datasheet p.2
- Attitude control
- 3-axis stabilised 3-axis stabilization; fine AOCS optional · datasheet p.2
- Pointing accuracy
- 0.1 ° up to 0.1° (optional, depending on H/W selection), 3-axis sta… · datasheet p.2
- Attitude knowledge
- 0.006 ° up to 0.006° (optional, depending on H/W selection) · datasheet p.2
- Propulsion
- included product page optional S-75 can be also equipped with Hall effect electric propulsion
- Delta-v
- 500 m/s max · up to 500 m/s (optional, depending on H/W selection; Hall eff… · datasheet p.2
- Payload data downlink rate
- 20 000 kbps max · PDHT (payload data), S/X-band · datasheet p.2
- Radio band
- S PDHT data rate S/X-band, up to 20 Mbps · datasheet p.2 UHF TT&C UHF, 10 kbps | X PDHT data rate S/X-band, up to 20 Mbps
- Subsystems included
- ADCS 3-axis stabilization · datasheet p.2 battery Li-Ion, 340 Whr | other PDHT (payload data handling and transmission): S/X-band up to… | UHF or VHF radio TT&C UHF, 10 kbps
- Max satellite wet mass
- 75 kg max · S/C launch mass <75 kg · datasheet p.2
- Deployables
- hinges for solar wings optional: S-75 can be also equipped with deployable solar arrays · datasheet p.1
- Deployables (as printed)
- Can be equipped with deployable solar arrays (optional) datasheet p.1
- Satellite class
- microsat 10-100 kg SITAEL Microsatellite-class Platform · datasheet p.1
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 supplier9 lines, in the manufacturer's own wording
- Launch mass
- 75 kg
- Propulsion
- All-electric — Hall effect thrusters
- Payload mass
- up to 25 kg
- Payload power (average)
- 30 W
- Payload power (peak)
- 200 W
- Payload volume
- 320 × 320 × 400 mm
- AOCS
- 3-axis — reaction wheels + magnetorquers
- Applications
- Earth observation, IOD/IOV, constellation deployment
- Service
- STRIVING IOD/IOV — end-to-end from test campaign to launch to operations
About
The SITAEL S-75 is a 75 kg class all-electric microsatellite platform developed by SITAEL (Italy) and offered commercially through the STRIVING In-Orbit Demonstration and In-Orbit Validation (IOD/IOV) service. The S-75 uses Hall effect electric propulsion for orbital manoeuvring, station keeping, and deorbit, eliminating chemical propellant and reducing launch mass. The bus accommodates up to 25 kg of payload mass in a 320 × 320 × 400 mm volume with 30 W average / 200 W peak payload power. Three-axis attitude control is provided by reaction wheels and magnetic torquers. The platform is designed for LEO Earth observation missions and satellite constellation deployment, offering autonomous orbit management capability. STRIVING is an ESA-backed commercial IOD/IOV service operated by SITAEL with partners IMT, Planetek, and Tyvak International, providing end-to-end mission services including test campaigns (functional, environmental, vibration, TVAC, radiation, EMC), spacecraft and payload control centres, multi-band ground stations (VHF/UHF/C/S/X-band), and launch procurement. The S-75 has flight heritage through SITAEL’s smallsat programme.
Documentation
- SatCatalog_-_SITAEL_-_S-75_Microsatellite_Platform_-_Datasheet.pdf PDF source: satcatalog.s3.amazonaws.com ↗
Need the full ICD, test reports or a specific revision? Ask the supplier directly.