ORB ESPA-Class Satellite Platform Family (ORB-0.1T / ORB-0.5T / ORB-1T)
OrbAstro
OrbAstro's ESPA-class platform family spans quarter-plate to full-plate configurations: 30-78 kg bus, up to 1,000 kg payload capacity, 490 W-3.5 kW power, 25+ year LEO lifetime, from £300,000.
Key figurescomparable across the catalogue
- Payload capacity
- 100 kg
- Design life
- 25 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
- ORB-0.1T (quarter-plate)
- Bus 30 kg dry/39 kg wet; Power 50 W (exp. 500 W); Payload ≤100 kg; 15" ESPA interface; £300,000
- ORB-0.5T (half-plate)
- Bus 36 kg dry/56 kg wet; Power 120 W (exp. 1.1 kW); Payload ≤500 kg; 15" ESPA interface; £450,000
- ORB-1T (full-plate)
- Bus 78 kg dry/108 kg wet; Power 490 W (exp. 3.5 kW, 8 kW peak); Payload ≤1,000 kg; 24" ESPA interface; £600,000
- Design life (LEO)
- 25+ years
- Design life (MEO)
- 10 years
- Design life (GEO)
- 20+ years
- Operations service
- £8,000 / month (all variants)
About
OrbAstro’s ESPA-class satellite platform family covers three configurations designed to interface with ESPA (EELV Secondary Payload Adapter) rings and dedicated rideshare dispensers, scaling from compact quarter-plate to full-size primary-mission platforms. The ORB-0.1T (quarter-plate, 15-inch interface, ≤50 × 48 × 55 cm) provides 30 kg dry / 39 kg wet bus mass with 50 W continuous power (expandable to 500 W) and supports up to 100 kg of payload for £300,000. The ORB-0.5T (half-plate, 15-inch interface, ≤50 × 100 × 55 cm) steps up to 36 kg dry / 56 kg wet with 120 W continuous power (expandable to 1.1 kW) for up to 500 kg of payload at £450,000. The ORB-1T (full-plate, 24-inch interface, ≤101 × 101 × 55 cm) is the flagship, providing 78 kg dry / 108 kg wet bus mass with 490 W continuous power (expandable to 3.5 kW; 8 kW peak) for payloads up to 1,000 kg at £600,000. All three variants are designed for LEO lifetimes exceeding 25 years, MEO up to 10 years, and GEO up to 20+ years. Operations are provided as a managed service at £8,000 per month across all variants. The ESPA-class family enables customers to fly large, high-performance Earth observation, communications, or science payloads on cost-effective shared launch vehicles. OrbAstro is a UK-based satellite platform manufacturer.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.