Results 151 to 160 of about 3,658,224 (185)

Design of a Robotic Lunar Lander for Lunar South Pole Exploration

AIAA SPACE 2008 Conference & Exposition, 2008
In 2005 Ball Aerospace & Technologies Corporation performed conceptual and systems level design work for a lunar polar robotic Lander, to meet the requirements of the Robotic Lunar Exploration Program (RLEP) precursor robotic missions to the Moon. The study presented in this paper developed Lander concepts using Ball heritage bus architectures.
Christopher McLean, Jennifer Crock, Maureen Riesco, Ian Gravseth, Richard Dissly   +4 more
openaire   +1 more source

Optimal placement of solar reflectors at the lunar south pole

2016 IEEE International Conference on Systems, Man, and Cybernetics (SMC), 2016
A recent NASA Innovative Advanced Concepts study suggests that several reflectors placed around the perimeter of Shackleton Crater may be capable of redirecting uninterrupted solar energy to a region within the crater year-round—effectively creating an energy oasis in the otherwise dark and cold extreme environment.
James V. Henrickson, Adrian Stoica
openaire   +2 more sources

Structure of the South Pole-Aitken lunar basin

Solar System Research, 2007
The hypsometric map and the basin height profiles, for the first time relying upon a spherical daturence surface, have been constructed based on the generalization of the heights measured within the hemisphere including the ring structure of the South Pole-Aitken basin.
V. V. Shevchenko, V. I. Chikmachev, S. G. Pugacheva   +2 more
openaire   +1 more source

Solar Sails and Lunar South Pole Coverage

AIAA/AAS Astrodynamics Specialist Conference and Exhibit, 2008
Potential orbits for continuous surveillance of the lunar south pole with just one spacecraft and a solar sail are investigated. Periodic orbits are first computed in the EarthMoon Restricted Three-Body Problem, using Hermite-Simpson and seventh-degree GaussLobatto collocation schemes.
Martin Ozimek, Daniel Grebow, Kahtleen Howell   +2 more
openaire   +1 more source

A Concept for Robotic Lunar South Pole Exploration

Space 98, 1998
The lunar south pole region may contain frozen volatiles such as water and carbon dioxide in surface depressions which are permanently dark. The low Sun angles of the region create these permanently dark areas and also provide nearby regions of long term sunlight and moderate temperatures which benefit robotic exploration. In this paper a concept for a
Matthew Deans, Stewart Moorehead, Ben Shamah, Kimberly Shillcutt, William \\"Red\\" Whittaker   +4 more
openaire   +1 more source

Long‐period lunar tides at the South Pole

Journal of Geophysical Research: Solid Earth, 1982
Vertical gravity data from 6.3 years of observations at the geographic South Pole have been analyzed to determine the gravimetric factor and phase angle of the long‐period tides. Annual and semiannual tides are obscured by the combination of signals arising from instrumental drift and the large annual component of barometric pressure changes at Pole ...
P. A. Rydelek, L. Knopoff
openaire   +1 more source

LANDSLIDE SUSCEPTIBILITY MAPPING IN LUNAR SOUTH POLE RIGION

SGEM International Multidisciplinary Scientific GeoConference� EXPO Proceedings
The study addresses a challenge in planetary exploration, focusing on landslide susceptibility on the Lunar South Pole Region (LSPR), fundamental for future lunar missions. Features like permanently shadowed regions and water ice deposits attract scientific attention but issues related to rugged terrain and dynamic geological processes must also to be ...
Ermini, Andrea, Salvini, Riccardo, Marrocchesi, Pier Simone   +2 more
openaire   +2 more sources

Why the lunar South Pole-Aitken Basin is not a mascon

Icarus, 2020
Abstract Lunar mascon basins exist for only a range of observed diameters. We modeled the full formation of South-Pole Aitken basin using a sequential two-code (hydrocode and Finite Element Model) approach to understand why this range does not extend to the largest lunar basin. Similar to previous work, we found that the best-fit hydrocode had impact
Alexander J. Trowbridge, Brandon C. Johnson, Andrew M. Freed, H. Jay Melosh   +3 more
openaire   +1 more source

Elliptical structure of the lunar South Pole-Aitken basin

Icarus, 2009
Abstract The South Pole-Aitken basin (SP-A) is the largest and oldest basin on the Moon. The basin has usually been interpreted to exhibit a degraded circular structure, but here we demonstrate that the topography, iron and thorium signatures of the basin are well described by ellipses with axes measuring 2400 by 2050 km and centered at −53°, 191°E ...
Ian Garrick-Bethell, Maria T. Zuber
openaire   +1 more source

Distribution and anomaly of microwave emission at Lunar South Pole

Science China Earth Sciences, 2009
Investigation on Lunar polar area is almost every lunar mission’s primary objective in recent years. The rationale behind it is that illumination and ice resources in this area can be potentially very helpful for constructing lunar human base. In this paper, we analyze microwave radiometric characteristics of the Moon by using the newly acquired Chang ...
WeiGuo Zhang, JingShan Jiang, HeGuang Liu, XiaoHui Zhang, DeHai Zhang, DiHui Li, ChuanDong Xu   +6 more
openaire   +1 more source