Výsledky vyhledávání - "C. A. Polanskey"

Determining the Relative Cratering Ages of Regions of Psyche’s Surface

Autor: S. Marchi, E. Asphaug, J. F. Bell, W. F. Bottke, R. Jaumann, R. S. Park, C. A. Polanskey, T. H. Prettyman, D. A. Williams, R. Binzel, R. Oran, B. Weiss, C. T. Russell

The study of the cratering history of asteroid (16) Psyche is one of the investigations to be performed by the NASA Psyche mission. A dedicated Relative Ages Working Group will carry on these investigations using primarily imaging and topographic dat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b75ad9d758ff19179f498347db974b4a

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Observations, Meteorites, and Models: A Preflight Assessment of the Composition and Formation of (16) Psyche

Publikováno v: Journal of Geophysical Research. Planets
Journal of geophysical research. Planets, vol 125, iss 3
Journal of Geophysical Research. Planets, Wiley-Blackwell, 2020, 125 (3), ⟨10.1029/2019JE006296⟩

Some years ago, the consensus was that asteroid (16) Psyche was almost entirely metal. New data on density, radar properties, and spectral signatures indicate that the asteroid is something perhaps even more enigmatic: a mixed metal and silicate worl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cfdc2e9ddff0f7a270586ef1577c8b9e
https://pubmed.ncbi.nlm.nih.gov/32714727

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The Planning Software Behind the Bright Spots on Ceres: The Challenges and Successes of Science Opportunity Analyzer

Autor: Carolyn Ortega, Christopher Lawler, Marcel Llopis, C. A. Polanskey

Publikováno v: 2019 IEEE International Conference on Space Mission Challenges for Information Technology (SMC-IT).

The Science Opportunity Analyzer software, or SOA, was developed with one goal in mind: to increase the productivity of science planning teams by streamlining the observation design process. Due to effective software development practices, conscious

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::73ceb4f6137ec927417f90772143cd33
https://doi.org/10.1109/smc-it.2019.00005

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Vestan lithologies mapped by the visual and infrared spectrometer on Dawn

Publikováno v: Meteoritics & Planetary Science. 48:2185-2198

We present global lithological maps of the Vestan surface based on Dawn mission's Visible InfraRed (VIR) Spectrometer acquisitions with a spatial sampling of 200 m. The maps confirm the results obtained with the data set acquired by VIR with a spatia

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8fb5c455028e5f637cd4c5f5dd2ebaf0
https://doi.org/10.1111/maps.12192

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Dawn mission and operations

Autor: Steve Joy, T.C. Fraschetti, C.T. Russel, C. A. Polanskey, K.A. Schimmels, Carol A. Raymond, Marc D. Rayman

Publikováno v: Proceedings of the International Astronomical Union. 1:97-119

Dawn is the first mission to attempt to orbit two distant planetary bodies. The objects chosen, 4 Vesta followed by 1 Ceres, are the two most massive members of the asteroid belt that appear to have been formed on either side of the dew line in the e

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::585ed93d6c38e177d833962065e987d5
https://doi.org/10.1017/s1743921305006691

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Europa and Callisto: Induced or intrinsic fields in a periodically varying plasma environment

Autor: R. J. Walker, Christophe Zimmer, L. Bennett, C. A. Polanskey, Steve Joy, Christopher T. Russell, David J. Stevenson, Krishan K. Khurana, Margaret G. Kivelson

Publikováno v: Journal of Geophysical Research: Space Physics. 104:4609-4625

Magnetometer data from four Galileo passes by the Jovian moon Europa and three passes by Callisto are used to interpret the properties of the plasma surrounding these moons and to identify internal sources of magnetic perturbations. Near Europa the m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0fe023d75ab1c09b7db5370be59818f
https://doi.org/10.1029/1998ja900095

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Induced magnetic fields as evidence for subsurface oceans in Europa and Callisto

Autor: Gerald Schubert, Krishan K. Khurana, C. A. Polanskey, Margaret G. Kivelson, Christopher T. Russell, R. J. Walker, David J. Stevenson

Publikováno v: Nature. 395:777-780

The Galileo spacecraft has been orbiting Jupiter since 7 December 1995, and encounters one of the four galilean satellites-Io, Europa, Ganymede and Callisto-on each orbit. Initial results from the spacecraft's magnetometer have indicated that neither

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7aba02aceabb82aa3a2482859b48393e
https://doi.org/10.1038/27394

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The magnetic field and magnetosphere of Ganymede

Autor: Krishan K. Khurana, Margaret G. Kivelson, R. J. Walker, Steve Joy, Ferdinand V. Coroniti, L. Bennett, J. Warnecke, C. A. Polanskey, Christopher T. Russell

Publikováno v: Geophysical Research Letters. 24:2155-2158

Within Jupiter's magnetosphere, Ganymede's magnetic field creates a mini-magnetosphere. We show that the magnetic field measured during Galileo‧s second pass by Ganymede, with closest approach at low altitude almost directly over the moon's polar c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f342132f7cbf577c591f817c032ea3c1
https://doi.org/10.1029/97gl02201

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Galileo at Jupiter: Changing states of the magnetosphere and first looks at Io and Ganymede

Autor: Ferdinand V. Coroniti, Krishan K. Khurana, R. J. Walker, C. A. Polanskey, Steve Joy, Robert L. McPherron, Paul J. Coleman, D. E. Huddleston, Margaret G. Kivelson, L. Bennett, J. Green, J. Warnecke, Christopher T. Russell, David J. Southwood

Publikováno v: Advances in Space Research. 20:193-204

Several investigations based on data from the magnetometer on the Galileo Orbiter are described. From Galileo’s initial inbound pass, we learn that the magnetosphere can experience large changes in its magnetic configuration. Between 50 and 30 R,,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e42ee54693e346d0e62698db0ba6137a
https://doi.org/10.1016/s0273-1177(97)00533-4

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