Mitigating Fading in Cislunar Communications: Application to the Human Landing System
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Cheung, Kar-Ming↗
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NASA's Human Landing System: Enabling the next generation of lunar science
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Renee Weber↗
Analysis of the Approach Direction of the Human Landing System to a South Pole Landing Site Subject to Lighting and Communication Constraints
The NRHO used as the staging orbit for crewed missions to the lunar surface by the HLS remains nearly perpendicular to the Earth-Moon line of sight, however, due to the libration of the Moon the location of the South Pole is ever shifting beneath it. DTE communication as well as ground illumination conditions near the South Pole coincide with lunar libration, with approximately 2-week cycles of DTE communication and solar availability. Additionally, the constant shifting of the South Pole region with respect to the NRHO leads to variations in the nominal HLS approach path to the surface in order to maintain near in-plane alignment of the NRHO, LLO, and approach phase. Making adjustments to the nominal approach path to achieve desired communication and lighting conditions quickly raises in-space ∆V. This analysis compares the ∆V impact of several trajectory strategies that could be used to alter the HLS approach path.
HLS↗
Artemis Human Landing System Deorbit, Descent, and Landing
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Moon↗
NASA's Initial Artemis Human Landing System
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Lakiesha Hawkins↗
The Human Landing System (HLS) and its Role in NASA’s Return to the Artemis Moon Program
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Artemis↗
Human Landing System Program Overview & Update
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Anne Garber↗
Human Landing System Program - Strategy and Status
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Don Krupp↗
Human Landing System
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Lisa Watson-Morgan↗
Human Landing System
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Lisa Watson-Morgan↗
Propulsion and Human Landing Systems: Marshall Space Flight Center’s Expertise
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Reid Ruggles↗
Overview of Human Research Program (HRP) Sponsored Sensorimotor Research for the Human Landing System
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sensorimotor↗
Human Landing System Program
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Kent T. Chojnacki↗