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.
Key figurescomparable across the catalogue
- Payload capacity
- 350 kg
- Largest dimension
- 3,600 mm
- Design life
- 5 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- 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
No public datasheet yet — request the datasheet / ICD from the supplier.