Vast Satellite (15 kW-class satellite bus)
Vast Space
Vast Satellite is a new line of high-power satellite buses designed for operators across communications, Earth observation, national security, and orbital data center satellite constellations.
Typed specifications28 values
Discloses 4 of 7 fields engineers filter by in this category (category median 3).
- Mass
- 700 kg bus dry mass · datasheet p.2
- Envelope (L×W×H)
- 2.2 x 3.6 m datasheet p.2
- Power consumption
- 15 000 W product page 6 000–14 500 W | 20 000 W
- Data interface
- MIL-STD-1553 enhanced, optional · datasheet p.2 RS-422 standard | Ethernet standard, 10/100/1000BASE-T | SpaceWire enhanced, optional
- Design lifetime
- 5 years design life · datasheet p.2
- Orbit
- LEO altitude 350-1,200 km; MEO, GEO, lunar listed as future orbits · datasheet p.2
- Max payload mass
- 350 kg min · payload mass 350+ kg · datasheet p.2
- Power available to payload
- 6 000 W min · orbit average 6-14.5 kW, orbit and payload dependent · datasheet p.2 20 000 W min · peak payload power 20 kW+, time dependent | 14 500 W max · orbit average 6-14.5 kW, orbit and payload dependent
- Power generation (orbit average)
- 15 000 W power · datasheet p.2
- Pointing accuracy
- 0.1 ° max · datasheet p.2
- Attitude knowledge
- 0.05 ° max · datasheet p.2
- Propulsion
- included 10 kW krypton electric propulsion thruster · datasheet p.2
- Delta-v
- 500 m/s min · total mission delta-v · datasheet p.2
- Radio band
- X high-rate downlink, optional · datasheet p.2 optical laser comm, third-party terminal, optional | S TT&C
- Subsystems included
- S-band radio datasheet p.2 GNSS receiver dual input GNSS receiver | OBC lockstep core flight computers | propulsion
- Flight heritage
- Haven Demo satellite heritage 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 supplier12 lines, in the manufacturer's own wording
- Design life
- 5 years
- LEO altitude range
- 350–1,200 km
- Total mission ΔV
- ≥500 m/s
- Bus dry mass
- 700 kg
- Payload capacity
- 350+ kg
- Dimensions
- 2.2 m × 3.6 m
- Solar power
- 15 kW
- Payload peak power
- 20 kW+
- Payload orbit average power
- 6-14.5 kW
- Payload orbit average bus managed thermal dissipation
- 6-10 kW
- Pointing knowledge
- <0.05 deg @ 1σ
- Pointing control
- <0.1 deg @ 1σ
About
Vast Satellite is a new product line of high-power satellite buses, with the first offering being a 15 kW-class satellite bus. These platforms are built for power-intensive missions and offer flexible configurations. The design leverages technologies developed for Vast’s Haven-1 space station and validated through the successful Haven Demo mission in 2025, ensuring a shared architecture. This approach, combined with Vast’s vertically integrated manufacturing model and advanced production capabilities, aims for faster development timelines, lower costs, and increased mission reliability. The satellite bus is designed to support a wide array of missions including communications, Earth observation, national security, and orbital data centers. It features common in-house subsystems for avionics, power, communications, propulsion, and flight software. Vast has already secured its first sale for four satellites, with an option for up to 200 additional units.
Documentation
Need the full ICD, test reports or a specific revision? Ask the supplier directly.