Summary
Highlights
Lakisha Hawkins, Judd Frieling, and Howard Hughes provide an update on the Artemis II mission. The crew is in good spirits, over 100,000 miles from Earth, and 150,000 miles from the moon. They shared images of Earth seen from Orion, showcasing auroras and zodiacal light, and a view of Earth after the Translunar Injection burn.
The crew inspected windows, held medical and family conferences, and performed a noise characterization of the toilet. A planned trajectory correction burn was deemed unnecessary due to excellent system performance. Howard Hughes reports nominal subsystem performance, including propellant usage within 5% of predictions and effective air revitalization. An issue with a helium pressurization branch for the propellant tanks was identified and isolated, with redundant systems ensuring no mission impact.
Judd Frieling and Howard Hughes discuss the importance of Monday's lunar flyby. It signifies humanity's return to the moon, allowing for human observation of the lunar surface. The mission tests the transportation system with a crew, enabling adjustments to how systems operate with people in the cabin. The mission also aims to inspire future exploration.
The main factors affecting trajectory deviations are carbon dioxide scrubbers and urine vents, which cause minor propulsive events. The flight control team was not surprised by the skipped trajectory correction burn, indicating tight prediction and reliable navigation. Discussion also covers the cabin temperature, which was adjusted from 65 to 70-75 degrees Fahrenheit for crew comfort, and humidity levels necessary for CO2 scrubber efficiency.
Howard Hughes addresses concerns about the isolated helium branch, confirming the second branch is performing well. Judd Frieling explains that minor sensor issues and false alarms are part of the learning process for operating a manned spacecraft. The team continuously adjusts and learns how the vehicle behaves with a human system in the loop, similar to Artemis I.
The experts explain that human eyes can resolve details on the lunar surface much better than cameras, providing crucial observations for the science community, even from 4,000 miles away. They emphasize the importance of this mission as a stepping stone for future deep-space exploration and establishing a lunar base, providing a new generation of learning after 53 years.
The crew's pace is different from the initial busy days, allowing more personal time. Scheduled activities include CPR demos, medical kit evaluations, and a press conference. The crew will be taking photos of celestial bodies like stars, the moon, and the sun, using both professional cameras and iPhones. All crew members are expected to contribute to the photography.
Howard Hughes discusses the optical navigation system, a camera-based system providing navigation knowledge even without ground communication. Both the spacecraft's sensors and ground-based tools are continuously refined to improve navigation accuracy. Future missions aim to overcome communication blackouts behind the moon using satellites at Lagrange points to ensure continuous contact.