NASA’s CAPSTONE 02 Will Test Robotic Docking and Autonomous Navigation Around the Moon
Featured image: Artist’s rendering of two CAPSTONE 02 spacecraft performing rendezvous operations in cislunar orbit. Credit: NASA/Ames Research Center
NASA has greenlit CAPSTONE 02, a two-spacecraft technology demonstration mission that will test the autonomous navigation, rendezvous, and robotic docking techniques needed to sustain a permanent human presence at the Moon.
Scheduled for launch in 2027, the mission is a direct follow-on to the original CAPSTONE cubesat, which became the first U.S. commercial mission to the Moon and the first spacecraft to operate in a near rectilinear halo orbit (NRHO). Where the original validated basic navigation and communications in that unique three-body orbit, CAPSTONE 02 aims to transition from pure validation to operational capability.
The mission comprises two identical small spacecraft, each weighing about 400 kilograms (882 pounds), built by Terran Orbital Systems. Advanced Space, which also managed the original CAPSTONE, is the prime contractor. The twin satellites will fly in cislunar space, a region under the simultaneous gravitational influence of Earth and the Moon, testing maneuvers that NASA’s Orion crew vehicle will need to perform when docking with lunar landers during Artemis missions.
Seven Demonstrations in One Mission
CAPSTONE 02 packs a broad set of technology objectives into a single flight. The primary demonstrations include rendezvous and proximity operations (RPO) using advanced relative navigation techniques far more complex than those used in low Earth orbit. The spacecraft can switch roles, with either satellite acting as the “chaser” or the “target,” allowing the mission to test multiple operational scenarios from a single launch.
Autonomous navigation is a central goal. Each spacecraft carries NASA’s Cislunar Autonomous Positioning System (CAPS) software, first demonstrated on the original CAPSTONE, which determines a spacecraft’s position relative to others without relying on Earth-based ground tracking. The satellites will use optical sensors and celestial bodies as reference points to locate and rendezvous with each other, mimicking the navigation strategy planned for Orion’s approach to a lunar lander.
The mission also carries an optical imaging payload developed by Lawrence Livermore National Laboratory, which will support the navigation demonstrations and capture imagery of the lunar surface.
Three separate NASA-developed navigation software suites will be tested during the low-energy transfer trajectory from Earth to lunar orbit. The spacecraft are designed for cost-effective, repeatable deployment, establishing a scalable mission model that could be reused for future cislunar infrastructure.
Building the Highway to the Moon
“Achieving our most ambitious space exploration goals requires iterative, risk-tolerant demonstrations in partnership with industry,” said Christopher Baker, lead of the In-Space Infrastructure portfolio at NASA’s Research and Technology Mission Directorate. “Technology development through flight testing is how we convert hard problems into the lasting capabilities needed for a permanent presence at the Moon.”
Sean Fuller, NASA’s Moon Base CAPSTONE manager, emphasized the mission’s role as a building block for broader lunar infrastructure. “By expanding on the lessons learned from CAPSTONE to demonstrate increasingly sophisticated operational concepts, CAPSTONE 02 lays the foundation for lunar infrastructure and commercial services that support Artemis, Moon Base, and future missions to deep space.”
Crew transport from a cislunar staging orbit to the lunar surface depends critically on navigation performance conditions that cannot be fully recreated on Earth. NASA’s approach is to test them in the environment where they will actually be used.
The mission is funded by NASA’s Human Spaceflight Mission Directorate with support from the Research and Technology Mission Directorate, and managed by the Small Spacecraft and Distributed Systems division at NASA’s Ames Research Center in Silicon Valley. The contract was awarded through the Small Business Innovation Research (SBIR) program’s Phase III mechanism.
Source: 1ban.news – Space Desk