Zobrazeno 1 - 8
of 8
pro vyhledávání: '"T. L. Heet"'
Autor:
Eugene P. Bonfiglio, T. L. Heet, Douglas S. Adams, Raymond Arvidson, David A. Spencer, Lynn E. Craig
Publikováno v:
Journal of Spacecraft and Rockets. 48:784-797
Publikováno v:
2010 Second International Conference on Advanced Geographic Information Systems, Applications, and Services.
A WebGIS is developed at NASA's Planetary Data System's Geosciences Node to facilitate the Apollo Analyst's Notebook to replay the Apollo missions. This system is created based on ESRI ArcGIS server 9.3.1 using JavaScript API. This WebGIS visually pr
Autor:
Mark T. Lemmon, T. L. Heet, Aaron P. Zent, Raymond E. Arvidson, H. U. Keller, M. L. Searls, Hanna G. Sizemore, Diana L. Blaney, Michael T. Mellon
Publikováno v:
Journal of Geophysical Research. 115
[1] Prior to the Phoenix mission, ice stability simulations predicted that surface rocks at the landing site would produce depressions in the ice table (the boundary between dry and ice-cemented soil) if ground ice at the site were in diffusive equil
Autor:
H. Uwe Keller, John Marshall, Michael C. Malin, M. L. Searls, Hanna G. Sizemore, Mark T. Lemmon, Michael T. Mellon, Raymond E. Arvidson, T. L. Heet
Publikováno v:
Journal of Geophysical Research. 114
[1] The Mars Scout mission Phoenix landed in the northern high latitudes of Mars in an area thought to be dominated by subsurface ground ice, and has provided a unique detailed examination of periglacial morphology and topography that is not visible
Autor:
Raymond E. Arvidson, W. Thomas Pike, Aaron P. Zent, Mark T. Lemmon, Douglas W. Ming, Hanna G. Sizemore, M. L. Searls, Michael T. Mellon, Richard V. Morris, T. L. Heet, Wojciech J. Markiewicz, Diana L. Blaney, Michael H. Hecht, H. Uwe Keller, S. Cull
Publikováno v:
Journal of Geophysical Research. 114
[1] A primary objective of the Phoenix mission was to examine the characteristics of high latitude ground ice on Mars. We report observations of ground ice, its depth distribution and stability characteristics, and examine its origins and history. Hi
Publikováno v:
Journal of Geophysical Research. 114
[1] The Phoenix Lander touched down on the northern distal flank of the shield volcano Alba Patera in a ∼150 km wide valley underlain by the Scandia region unit. The geomorphology and geology of the landing site is dominated by the ∼0.6 Ga, 11.5
Autor:
Douglas S. Adams, Raymond E. Arvidson, T. L. Heet, Jacob R. Matijevic, L. K. Tamppari, Alfred S. McEwen, C. R. Klein, Kimberly D. Seelos, Andres Huertas, T. J. Parker, B. McGrane, Michael T. Mellon, Yang Cheng, M. Martinez, Matthew P. Golombek, W. Li, Hanna G. Sizemore, Jeffrey J. Marlow, L. Barry
Publikováno v:
Journal of Geophysical Research. 113
[1] The size-frequency distributions of rocks >1.5 m diameter fully resolvable in High Resolution Imaging Science Experiment (HiRISE) images of the northern plains follow exponential models developed from lander measurements of smaller rocks and are
Autor:
David A. Spencer, Lynn E. Craig, Raymond E. Arvidson, Douglas S. Adams, Eugene P. Bonfiglio, T. L. Heet, William Strauss, Frank P. Seelos, Kimberly D. Seelos
Publikováno v:
AIAA/AAS Astrodynamics Specialist Conference and Exhibit.
The Mars Phoenix Lander launched on August 4, 2007 and successfully landed on Mars 10 months later on May 25, 2008. Landing ellipse predicts and hazard maps were key in selecting safe surface targets for Phoenix. Hazard maps were based on terrain slo