Search NASA⌕ Search
Home/Archive/NASA NTRS

NASA NTRS · 20240016509

Recovery from Missed Thrust During Gateway's NRHO Insertion Using Auxiliary Propulsion

Scott N Karn·Steve L McCarty·Melissa L McGuire
View original source ↗Export metadata ↓

Abstract

Various strategies are assessed by which the first two elements of Gateway could recover from missed thrust events during insertion into a Near Rectilinear Halo Orbit (NRHO). Recovery strategies are assessed in terms of their ability to maintain the desired NRHO insertion epoch ad well as their cost in terms of additional time and ∆v required to reach the NRHO. Strategies utilize a 50 kW Solar Electric Propulsion (SEP) system onboard the Power and Propulsion Element (PPE). Recovery solutions are found that, in the event of a missed thrust arc during the Insertion Phase of the Gateway Lunar Transit, deliver the space-craft into the NRHO within three additional revolutions (roughly 21 days) and 80 m/s ∆v.

Explore related subjects

missed thrustnrhonear rectilinear halo orbithabitation and logistics outpostpower and propulsion elementtrajectory designtrajectory analysissolar electric propulsiongatewayartemismission designtrajectorylow-thrustlow thrust

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Scott N Karn, Steve L McCarty, Melissa L McGuire. Recovery from Missed Thrust During Gateway's NRHO Insertion Using Auxiliary Propulsion. https://ntrs.nasa.gov/citations/20240016509

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related reports

NASA NTRS2026

A Missed Thrust Framework for Low-Thrust Spiral Trajectories to the NRHO

A framework is developed by which end-to-end optimization of many-revolution low-thrust spiral trajectories can be completed in the presence of missed thrust events. This framework is applied to the Lunar Transit trajectory by which the initial capability of NASA’s Gateway lunar space station will be delivered to a Near Rectilinear Halo Orbit. This low-thrust mission consists of three subphases, each designed according to the specific objectives and dynamical regimes encountered as the mission progresses from a medium Earth insertion orbit to cislunar space. The presented framework accounts for the unique considerations demanded by each mission phase and incorporates appropriate capabilities into a novel mission analysis tool. This methodology enables large scale and reliable analyses of missed thrust events across the end-to-end Lunar Transit to verify the robustness of flight trajectories across the full range of considered launch dates.

missed thrust↗