CCSDS Outreach Initiative and Competition
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LunaNet Signal-In-Space Recommended Standard – Augmented Forward Signal (LSIS – AFS)
- The LSIS–AFS standard defines how lunar orbiters or surface systems broadcast a unified navigation and timing signal to support future missions on and around the Moon. It provides a framework for creating an enhanced, interoperable “forward signal” that spacecraft, rovers, and astronauts can use for more accurate positioning, timing, and situational awareness.
- The CCSDS 235.1 standard defines how space missions establish, manage, and conclude communication sessions between spacecraft and ground systems. It provides a common framework that ensures reliable coordination when exchanging data, sending commands, and transitioning between communication states.
Participants may choose either to develop a functional concept or prototype that demonstrates how the LSIS–AFS signal could be designed, transmitted, interpreted, or applied to support future lunar missions, or to create a practical, interoperable reference implementation of Space Communications Session Control aligned with the CCSDS 235.1 standard.
A Long-Term Vision: Toward a Cislunar Amateur Radio Payload
CCSDS is pleased to highlight a longer-term aspiration linked to this initiative. In close cooperation with its partners—particularly ESA, which is proposing a future cislunar amateur radio payload—CCSDS intends to support the preparation of the most successful protocol implementations for potential consideration for flight.
This offers an exceptional opportunity for community-developed CCSDS-compliant software to be demonstrated in a deep-space operational environment.
This prospective mission is subject to funding and programme approval.
Contact and Expressions of Interest
For enquiries or to express interest in participating, please contact:
esa-competition@amsat-uk.org
Further Information
Additional details—including eligibility criteria, protocol specifications, submission requirements, evaluation processes, and timelines—will be released soon.
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International Space Station – Image Credit NASA
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