Making space accessible. That’s Defining Possible.

Modular and Cost-Effective

Northrop Grumman’s ESPAStar platform provides a modular, cost-effective and highly capable infrastructure resource for hosting technology development and operational payloads. The ESPAStar platform uses a customized EELV Secondary Payload Adapter (ESPA) ring as part of its structure and is capable of being launched aboard any launch vehicle that meets the Evolved Expendable Launch Vehicle (EELV) standard interface specification, and Falcon 9.

A satellite in orbit in space above earth

ESPAStar Platform

The ESPAStar platform’s six payload ports are capable of accommodating any combination of up to six hosted and 12 separable (fly-away) payloads (maximum one hosted or two separables per port). The payload interface at each port has been standardized, allowing for hosted and separable payload interchangeability, late payload integration and manifest changes. The ESPAStar platform leverages the available mass margin from any EELV launch to provide an affordable path to space for payloads. The platform is optimized for GEO missions, but is adaptable for LEO and MEO missions.

Mission Services

  • Mission Analysis
  • Payload Integration
  • Testing and Verification
  • Launch Vehicle Integration
  • Launch Operations
  • Mission Operation
  • Safety & Mission Assurance

ESPAStar Facts at a Glance

  • Accommodates combinations of hosted (6 max) or separable (12 max) payloads at all mounting ports
  • 1,920 kg payload (320 kg per Port)
  • Multi-year mission life
  • 1.6 Mbps downlink, AFSCN-compatible, Type 1 encryption
  • Low jitter
  • Attitude knowledge <20 μrad (1σ)
  • ≥400 m/s delta-V, any direction
  • EELV SIS Rev B compliant Full complement of electrical interfaces
  • Power
  • Data
  • Discrete I/O
ESPAStar-D Datasheet ESPAStar-HP Datasheet