Impulse Space is expanding the spacecraft portfolio with Mira, a high-performance, maneuverable spacecraft designed to support payload hosting, deployment and dynamic orbital operations across multiple orbital regimes. Engineered for flexibility and responsiveness, Mira is built to enable missions that require precise maneuvering, rapid retasking and high delta-v performance in increasingly complex space environments. With a design focused on agility and operational versatility, Mira supports applications ranging from constellation deployment and orbital transfer to hosted payload missions and deep-space operations, offering a platform that can adapt to evolving missions. Mira is developed as an agile, multi-orbit spacecraft capable of operating in Low Earth Orbit (LEO), Medium Earth Orbit (MEO), Geostationary Orbit (GEO), cislunar space and beyond. 

Designed with a mission lifespan of approximately five years, the platform enables long-duration operations while maintaining the ability to respond to changing mission demands. The spacecraft supports payload hosting and deployment, allowing customers to integrate their systems onto a maneuverable platform that can be repositioned or retasked as needed. This capability is particularly valuable for missions requiring precise orbital insertion, constellation phasing or responsive space operations. At the core of Mira’s performance is its high-thrust propulsion system, powered by Impulse Space’s Saiph engines, which utilize a non-toxic bipropellant combination of nitrous oxide and ethane. The spacecraft is equipped with eight 26 N (6 lbf) thrusters, delivering a total available thrust of approximately 208 N (48 lbf). 

This propulsion architecture enables significant maneuverability, with delta-v capabilities of up to 550 m/s for a 300 kg payload, increasing to 650 m/s for 200 kg payloads and up to 850 m/s for lighter payload configurations. These performance levels support a wide range of mission profiles, including orbit raising, transfer maneuvers and precision deployment. The Saiph thrusters are designed for pulsed and independent operation, enabling fine control over spacecraft motion and efficient propellant usage. This high-thrust capability has been demonstrated in flight, supporting large orbital maneuvers for nitrous-based propulsion systems. Mira incorporates a six-degrees-of-freedom (6DOF) attitude control system, combining four reaction wheels with 20 cold-gas thrusters for precise orientation and maneuvering. 

This hybrid system enables both fine pointing control and rapid reorientation. The spacecraft achieves pointing accuracy better than 10 arcseconds (1σ), with slew rates exceeding 1° per second via reaction wheels and up to 5° per second using reaction control thrusters. Low jitter performance, approximately 2 arcseconds per second, ensures stability for payloads requiring high-precision imaging or sensing. Mira is designed to support a wide range of payload configurations, with a maximum payload capacity of up to 300 kg and a payload volume exceeding 1 cubic meter. The spacecraft features a modular payload interface, including a standardized 4” × 4” grid bolt pattern, enabling flexible integration of payloads. The platform can accommodate up to nine 16U deployers, making it suitable for deploying CubeSats or small satellites as part of constellation missions. Custom payload adapters are also available, allowing mission-specific configurations. 

The pegboard payload deck design maximizes usable volume and supports efficient payload integration, enabling customers to tailor the spacecraft to their operational requirements. Mira incorporates end-to-end security features, including NSA Type 1 cryptographic solutions, ensuring secure communication, data processing and command operations. The spacecraft’s architecture is designed to comply with CNSSP-12 standards, supporting secure handling of sensitive and classified information. The system is also designed with single-fault tolerance across all subsystems, enhancing reliability and ensuring mission continuity in the event of component failures. The spacecraft provides up to 350 W of power (end-of-life) through an unregulated 28V system, supporting a wide range of payload requirements. Data interfaces include Ethernet (1000BASE-T) and RS-422, enabling compatibility with modern spacecraft and payload systems. For communication, Mira supports X-band downlink capabilities of up to 4 Mbps and S-band uplink at approximately 400 kbps, ensuring reliable data transmission for mission operations.

Mira is designed for compatibility with multiple launch configurations, including SpaceX rideshare missions, ESPA-Grande interfaces, Ariane ASPRA and Impulse Space’s Helios platform. This flexibility enables efficient integration into a wide range of launch opportunities, reducing time-to-orbit and operational constraints. Impulse Space addresses this need with Mira, providing a spacecraft that combines high thrust, precision control and flexible payload integration. By enabling precise deployment, responsive maneuvering and secure operations across multiple orbital regimes, Mira supports a new class of space missions focused on agility, scalability and operational efficiency in an increasingly complex space environment.

About Impulse Space

Impulse Space is a US-based space technology company focused on in-space transportation, maneuverable spacecraft and orbital logistics solutions. Headquartered in Redondo Beach, California, USA, the company develops spacecraft designed to enable efficient movement of payloads across different orbits and support dynamic space operations. Impulse Space’s portfolio includes spacecraft platforms such as Mira and orbital transfer vehicles designed for payload deployment, hosting and orbital repositioning. Its systems are built around high-thrust propulsion technologies, modular architectures, and compatibility with multiple launch configurations, enabling flexible mission profiles across Low Earth Orbit (LEO), Geostationary Orbit (GEO) and beyond. By combining propulsion engineering with scalable spacecraft design, Impulse Space provides solutions that support responsive mission deployment and in-space mobility for commercial and government applications.

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