The optical terminal was mounted on Orion and exchanged data with Earth when the spacecraft had line of sight to ground stations. NASA reports that the system carried high-definition video, photographs, flight procedures, engineering and science data, and voice communications; it could also transmit information to the capsule for the crew. [S1]
For the lunar science team, the practical consequence was access to detailed imagery and data during active mission phases. NASA’s Artemis II lunar science lead, Dr. Kelsey Young, said that access supported faster insights and science decisions for the crew, and enabled a more productive science conference the morning after the lunar flyby. [S1]
NASA reports that the optical system exchanged 484 gigabytes over the roughly 10-day journey. When it was in use, Orion established multiple 260-megabit-per-second downlinks; NASA’s traditional radio systems at lunar distance were limited, under the current processing structure, to single-digit megabits-per-second data rates. [S1]
The user-facing result also depended on ground infrastructure. NASA says the Australian National University’s Mount Stromlo station contributed dual-stream Orion video to NASA’s “Live Views from Orion” feed for more than 15.5 hours, helping millions follow mission milestones. [S1]
Source documents
- NASA Laser Terminal Enhances Views During Artemis II Missionhttps://www.nasa.gov/missions/artemis/artemis-2/nasa-laser-terminal-enhances-views-during-artemis-ii-mission/