NRHO

English thumb|An NRHO from three frames of reference. Noun en near-rectilinear halo orbit. 2017; D. Davis; "Orbit maintenance and navigation of human spacecraft at cislunar Near Rectilinear Halo Orbits"; 27th AAS/AIAA Space Flight Mechanics Meeting Proceedings; NASA id: JSC-CN-38626 en An NHRO would enable a cislunar space station to save propellant for orbital corrections and avoid the blocking of sunlight by the Moon from reaching the station’s solar panels, while always keeping the spacecraft within a line of sight to ground controllers on Earth. 2018; Piotr Burnos, Janusz Gajda, Ryszard Sroka; "Accuracy criteria for evaluation of weigh-in-motion systems", Metrology and Measurement Systems, volume 24, issue 4; DOI: 10.24425/mms.2018.124881 en Various aspects of operating the lunar station in a resonant NRHO have been deeply studied, including station-keeping techniques, Earth-NRHO and NRHO-Earth transfer opportunities, challenges in short-term and long-term navigation, eclipse conditions, and shadow avoidance strategies. 2018; C. Hibbits; "Mapping Water on the Moon from a Near-Rectilinear Halo Orbit"; AGU Fall Meeting Proceedings; Bibcode: 2018AGUFM.P54D..08H en Infrared spectral mapping in the 3 to 6 um range, at the long distance and over the long periods afforded by NRHO orbits can address or answer these questions and have some advantages over lower altitude high spatial resolution mission concepts. 2019; Michelle Star; "Just Look at This Animation of How The First Lunar Outpost Is Going to Orbit The Moon"; Science Alert en Unlike the low lunar orbit, an NRHO leverages Lagrange points for stability - these are points where the combined gravitational forces of two larger bodies (in this case Earth and the Moon) create a small area of gravitational stability, or near-stability. Further reading Anagrams en hnor Horn Rohn horn