LunaNet

LunaNet is a NASA and ESA project and proposed data network aiming to provide a "Lunar Internet" for cis-lunar spacecraft and installations.^[1]

LunaNet DTN Framework

It will be able to store-and-forward data to provide a Delay/Disruption Tolerant Network (DTN). The objective is to avoid needing to preschedule data communications back to Earth.^[1]

LunaNet will also offer navigation services, eg. for orbit determination, and navigation on the lunar surface.^[1]

Draft interoperability specifications have been issued.^[1]

The LunaNet Interoperability Specification (LNIS) is the document which publishes the LunaNet standard. LNIS version 4 was published online in September 12, 2022. LNIS version 5 draft for review was provided online for comment late 2023.^[2][3]

• NASA's instantiation of LunaNet is called Lunar Communication Relay and Navigation System (LCRNS).^[4]

• Moonlight Initiative is an ESA project intending to adopt the specifications.^[5][6]

• JAXA's instantiation of LunaNet is called Lunar Navigation Satellite System (LNSS)^[4]

See also

• Deep Space Network, NASA spacecraft communications
• Artemis program, NASA's return to the Moon
• Laser communication in space
• Coordinated Lunar Time