ROME — NaviGate, an innovative Italian space technology company born as a spin-off from the prestigious Sapienza University of Rome, has announced a major milestone in autonomous satellite operations. The company has successfully completed the in-orbit demonstration (IoD) of its flagship software, NaviCode Caravel, designed for autonomous onboard precise orbit determination. The demonstration took place aboard an ION Satellite Carrier spacecraft operated by prominent orbital transportation firm D-Orbit.
During the successful flight test, NaviCode Caravel executed directly on the satellite’s onboard computing architecture. Using only the raw data provided by a GNSS receiver already integrated into the spacecraft, the software computed the satellite’s precise position in real time without requiring any additional hardware modifications or dedicated tracking payloads. This successful deployment marks a significant step forward in shifting spacecraft navigation from traditional ground-dominated operations to intelligent, autonomous onboard processing.
Breaking the Ground Bottleneck in Satellite Operations
Historically, knowing the precise position and trajectory of a satellite has remained a predominantly ground-based task. Spacecraft operators rely heavily on dedicated global tracking infrastructure, specialized flight dynamics engineering teams, and repeated communication passes to accurately reconstruct, verify, and predict the orbit of each individual vehicle.
However, as the global space industry experiences an exponential surge in the deployment of large commercial constellations and missions become increasingly responsive, this traditional ground-centric approach is rapidly turning into a major operational bottleneck. The legacy workflow introduces significant limitations regarding operational costs, human workload, and the reaction time required to handle orbital events.
NaviCode Caravel directly addresses this challenge by moving precise orbit determination onboard the spacecraft. The software-only product transforms raw GNSS measurements already available to the satellite into high-accuracy, real-time positional knowledge, delivering critical data directly where operational decisions are made.
Beyond simply determining where the spacecraft is at any given moment, Caravel possesses advanced predictive capabilities. It can accurately calculate where the satellite will be in the future, complete with a measurable index of prediction reliability. This forward-looking situational awareness equips the spacecraft with the autonomy required to anticipate upcoming mission milestones—such as ground station communication windows or payload operations—and manage them independently without constant human intervention from Earth.
A Rigorous In-Orbit Validation Campaign
The successful demonstration was carried out utilizing D-Orbit’s specialized Software In-Orbit Demonstration service, following a carefully structured two-phase validation framework.
In the initial phase, NaviCode Caravel underwent exhaustive testing on the ground using an engineering model specifically configured to replicate the exact computing environment found in orbit. Once the ground validation confirmed the application’s stability and performance, the software was securely uploaded to an operational ION Satellite Carrier already in orbit.
Once deployed on the active spacecraft, NaviCode Caravel executed nominally in real time and completely free of anomalies. The software processed real flight telemetry data from the satellite’s GNSS receiver across multiple distinct execution runs.
During the flight tests, the onboard positioning achieved an impressive best-case formal uncertainty of just 5.2 centimeters, with mean values consistently remaining within the decimeter range across all evaluated runs utilizing GPS-only measurements. Following the mission, NaviGate engineers verified the onboard solutions against reference orbits reconstructed through classical ground-based precise orbit determination. This verification utilized GODOT, the European Space Agency’s sophisticated flight dynamics software, confirming that the autonomous onboard calculations matched traditional high-precision methods. Furthermore, NaviCode Caravel is architected to process multi-constellation GNSS data alongside advanced correction services such as SBAS and Galileo HAS, paving the way for even higher positioning accuracy in future commercial deployments.
Industry Perspectives on Autonomous Space Infrastructure
The successful flight test represents the culmination of intense collaborative efforts between NaviGate and its industrial partners.
“Satellites still depend heavily on the ground to know exactly where they are and where they will be. NaviCode Caravel changes that: it is a software product that lets a satellite compute its own position with high accuracy, in real time, using the GNSS receiver it already carries, with no new hardware,” said Andrea Sesta, Chief Technology Officer and Co-founder at NaviGate.
Sesta emphasized the significance of the flight data and the efficiency of the validation process. “Seeing it run in orbit without a single anomaly, and produce solutions consistent with the reference orbits computed on the ground, is the validation we were working toward, and a real milestone for the whole NaviGate team. D-Orbit’s Software In-Orbit Demonstration service was key to getting there quickly: we developed and tested our application on the ground in the same containerized environment used in orbit, iterated fast, and flew on real flight data within months, which is exactly what a company like ours needs to bring a flight-proven product to market.”
The infrastructure provider also highlighted the mutual benefits of the collaborative flight. Viney Jean-Francois Dhiri, Head of Growth, Sales and Marketing of the Space Cloud Business Unit at D-Orbit, noted the strategic advantage of leveraging networked orbital assets for rapid technology maturation.
“With five networked Intelligence Nodes in orbit, we can give customers access to space infrastructure that is already up and running. For NaviGate, that means testing their precise orbit determination algorithms ingesting raw GNSS measurements and attitude telemetry in real time from D-Orbit’s ION platform, in-situ directly on-board, with no satellite to develop or launch. It’s a practical way to move from simulation to real flight data in less time and at lower cost,” Dhiri stated.
Expanding Capabilities and Future Market Applications
Caravel represents the inaugural release within NaviGate’s broader NaviCode product family. Future software iterations are planned to extend these core capabilities into multi-sensor resilient navigation frameworks and autonomous maneuver planning algorithms tailored for large-scale satellite constellations.
The technical merit and commercial potential of the technology have already garnered external recognition. NaviCode Caravel was selected as a distinguished winner of the CASSINI Challenges 2026, an esteemed European Union entrepreneurship competition organized by the EU Agency for the Space Programme.
The successful in-orbit demonstration marks the final milestone of an intensive proof-of-concept initiative initially funded by Galaxia, the Italian Technology Transfer Hub on Aerospace. Galaxia is powered by CDP Venture Capital alongside Obloo Ventures, an entity that has backed NaviGate since its earliest foundational stages. NaviGate was established by a team of researchers who honed their deep expertise in spacecraft navigation and precise orbit determination while contributing to major international space endeavors, including NASA and ESA missions such as Juno, Cassini, Veritas, BepiColombo, and JUICE, as well as advanced initiatives like the ESA Moonlight and Marconi constellations.
Following the validation of NaviCode Caravel, NaviGate is actively engaging with constellation operators, satellite manufacturers, and mission integrators to prepare for initial commercial pilot deployments. The software directly resolves critical market pain points, including the reduction of ground infrastructure overhead and operational workload required to maintain precise orbital knowledge across large constellations. Additional target use cases include enhancing onboard image processing pipelines for Earth observation satellites, supporting positioning, navigation, and timing constellations, and improving navigation reliability for launch vehicles and orbital transfer applications across diverse orbital regimes.
