Unique, Antique Vesta
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Copyrighted Material
Index Abulfeda crater chain (Moon), 97 Aphrodite Terra (Venus), 142, 143, 144, 145, 146 Acheron Fossae (Mars), 165 Apohele asteroids, 353–354 Achilles asteroids, 351 Apollinaris Patera (Mars), 168 achondrite meteorites, 360 Apollo asteroids, 346, 353, 354, 361, 371 Acidalia Planitia (Mars), 164 Apollo program, 86, 96, 97, 101, 102, 108–109, 110, 361 Adams, John Couch, 298 Apollo 8, 96 Adonis, 371 Apollo 11, 94, 110 Adrastea, 238, 241 Apollo 12, 96, 110 Aegaeon, 263 Apollo 14, 93, 110 Africa, 63, 73, 143 Apollo 15, 100, 103, 104, 110 Akatsuki spacecraft (see Venus Climate Orbiter) Apollo 16, 59, 96, 102, 103, 110 Akna Montes (Venus), 142 Apollo 17, 95, 99, 100, 102, 103, 110 Alabama, 62 Apollodorus crater (Mercury), 127 Alba Patera (Mars), 167 Apollo Lunar Surface Experiments Package (ALSEP), 110 Aldrin, Edwin (Buzz), 94 Apophis, 354, 355 Alexandria, 69 Appalachian mountains (Earth), 74, 270 Alfvén, Hannes, 35 Aqua, 56 Alfvén waves, 35–36, 43, 49 Arabia Terra (Mars), 177, 191, 200 Algeria, 358 arachnoids (see Venus) ALH 84001, 201, 204–205 Archimedes crater (Moon), 93, 106 Allan Hills, 109, 201 Arctic, 62, 67, 84, 186, 229 Allende meteorite, 359, 360 Arden Corona (Miranda), 291 Allen Telescope Array, 409 Arecibo Observatory, 114, 144, 341, 379, 380, 408, 409 Alpha Regio (Venus), 144, 148, 149 Ares Vallis (Mars), 179, 180, 199 Alphonsus crater (Moon), 99, 102 Argentina, 408 Alps (Moon), 93 Argyre Basin (Mars), 161, 162, 163, 166, 186 Amalthea, 236–237, 238, 239, 241 Ariadaeus Rille (Moon), 100, 102 Amazonis Planitia (Mars), 161 COPYRIGHTED -
Research Article Subsurface Thermal Modeling of Oxia Planum, Landing Site of Exomars 2022
Hindawi Advances in Astronomy Volume 2021, Article ID 9924571, 10 pages https://doi.org/10.1155/2021/9924571 Research Article Subsurface Thermal Modeling of Oxia Planum, Landing Site of ExoMars 2022 M. Formisano ,1 M. C. De Sanctis ,1 C. Federico,1 G. Magni,1 F. Altieri ,1 E. Ammannito ,2 S. De Angelis ,1 M. Ferrari ,1 and A. Frigeri 1 1INAF-IAPS, Via del Fosso del Cavaliere 100, Rome, Italy 2Italian Space Agency (ASI), Rome, Italy Correspondence should be addressed to M. Formisano; [email protected] Received 8 March 2021; Revised 18 May 2021; Accepted 25 June 2021; Published 2 September 2021 Academic Editor: Eriita Jones Copyright © 2021 M. Formisano et al. &is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Numerical simulations are required to thermophysically characterize Oxia Planum, the landing site of the mission ExoMars 2022. A drilling system is installed on the ExoMars rover, and it will be able to analyze down to 2 meters in the subsurface of Mars. &e spectrometer Ma_MISS (Mars Multispectral Imager for Subsurface, Coradini and Da Pieve, 2001) will investigate the lateral wall of the borehole generated by the drill, providing hyperspectral images. It is not fully clear if water ice can be found in the subsurface at Oxia Planum. However, Ma_MISS has the capability to characterize and map the presence of possible ices, in particular water ice. We performed simulations of the subsurface temperatures by varying the thermal inertia, and we quantified the effects of self-heating. -
Planetary Science Division Status Report
Planetary Science Division Status Report Jim Green NASA, Planetary Science Division January 26, 2017 Astronomy and Astrophysics Advisory CommiBee Outline • Planetary Science ObjecFves • Missions and Events Overview • Flight Programs: – Discovery – New FronFers – Mars Programs – Outer Planets • Planetary Defense AcFviFes • R&A Overview • Educaon and Outreach AcFviFes • PSD Budget Overview New Horizons exploresPlanetary Science Pluto and the Kuiper Belt Ascertain the content, origin, and evoluFon of the Solar System and the potenFal for life elsewhere! 01/08/2016 As the highest resolution images continue to beam back from New Horizons, the mission is onto exploring Kuiper Belt Objects with the Long Range Reconnaissance Imager (LORRI) camera from unique viewing angles not visible from Earth. New Horizons is also beginning maneuvers to be able to swing close by a Kuiper Belt Object in the next year. Giant IcebergsObjecve 1.5.1 (water blocks) floatingObjecve 1.5.2 in glaciers of Objecve 1.5.3 Objecve 1.5.4 Objecve 1.5.5 hydrogen, mDemonstrate ethane, and other frozenDemonstrate progress gasses on the Demonstrate Sublimation pitsDemonstrate from the surface ofDemonstrate progress Pluto, potentially surface of Pluto.progress in in exploring and progress in showing a geologicallyprogress in improving active surface.in idenFfying and advancing the observing the objects exploring and understanding of the characterizing objects The Newunderstanding of Horizons missionin the Solar System to and the finding locaons origin and evoluFon in the Solar System explorationhow the chemical of Pluto wereunderstand how they voted the where life could of life on Earth to that pose threats to and physical formed and evolve have existed or guide the search for Earth or offer People’sprocesses in the Choice for Breakthrough of thecould exist today life elsewhere resources for human Year forSolar System 2015 by Science Magazine as exploraon operate, interact well as theand evolve top story of 2015 by Discover Magazine. -
2016 Publication Year 2020-12-21T10:07:06Z
Publication Year 2016 Acceptance in OA@INAF 2020-12-21T10:07:06Z Title Spectral characterization of V-type asteroids - II. A statistical analysis Authors IEVA, Simone; DOTTO, Elisabetta; Lazzaro, D.; PERNA, Davide; Fulvio, D.; et al. DOI 10.1093/mnras/stv2510 Handle http://hdl.handle.net/20.500.12386/29033 Journal MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY Number 455 MNRAS 455, 2871–2888 (2016) doi:10.1093/mnras/stv2510 Spectral characterization of V-type asteroids – II. A statistical analysis S. Ieva,1‹ E. Dotto,1 D. Lazzaro,2 D. Perna,3 D. Fulvio4 and M. Fulchignoni3 1INAF–Osservatorio Astronomico di Roma, via Frascati 33, I-00040 Monteporzio Catone (Roma), Italy 2Observatorio Nacional, Rua General Jose´ Cristino, 77 – Sao˜ Cristov´ ao,˜ Rio de Janeiro – RJ-20921-400, Brazil 3LESIA, Observatoire de Paris, PSL Research University, CNRS, Sorbonne Universites,´ UPMC Univ. Paris 06, Univ. Paris Diderot, Sorbonne Paris Cite,´ 5 place Jules Janssen, F-92195 Meudon, France 4Departamento de Fis´ıca, Pontif´ıcia Universidade Catolica´ do Rio de Janeiro, Rua Marques de Sao˜ Vicente 225, Rio de Janeiro 22451-900, Brazil Downloaded from https://academic.oup.com/mnras/article/455/3/2871/2892629 by guest on 06 November 2020 Accepted 2015 October 23. Received 2015 October 22; in original form 2015 August 9 ABSTRACT In recent years, several small basaltic V-type asteroids have been identified all around the main belt. Most of them are members of the Vesta dynamical family, but an increasingly large number appear to have no link with it. The question that arises is whether all these basaltic objects do indeed come from Vesta. -
Laboratory Spectroscopy of Meteorite Samples at UV-Vis-NIR Wavelengths: Analysis and Discrimination by Principal Components Analysis
Laboratory spectroscopy of meteorite samples at UV-Vis-NIR wavelengths: Analysis and discrimination by principal components analysis Antti Penttil¨aa,∗, Julia Martikainena, Maria Gritsevicha, Karri Muinonena,b aDepartment of Physics, P.O. Box 64, FI-00014 University of Helsinki, Finland bFinnish Geospatial Research Institute FGI, National Land Survey of Finland, Geodeetinrinne 2, FI-02430 Masala, Finland Abstract Meteorite samples are measured with the University of Helsinki integrating-sphere UV-Vis- NIR spectrometer. The resulting spectra of 30 meteorites are compared with selected spectra from the NASA Planetary Data System meteorite spectra database. The spectral measure- ments are transformed with the principal component analysis, and it is shown that different meteorite types can be distinguished from the transformed data. The motivation is to im- prove the link between asteroid spectral observations and meteorite spectral measurements. Keywords: Meteorites, spectroscopy, principal component analysis 1. Introduction While a planet orbits the Sun, it is subject to impacts by objects ranging from tiny dust particles to much larger asteroids and comet nuclei. Such collisions of small Solar System bodies with planets have taken place frequently over geological time and played an 5 important role in the evolution of planets and development of life on the Earth. Every day approximately 30{180 tons of interplanetary material enter the Earth's atmosphere [1, 2]. This material is mostly represented by smaller meteoroids that undergo rapid ablation in the atmosphere. Under favorable initial conditions part of a meteoroid may survive the atmospheric entry and reach the ground [3]. The fragments recovered on the ground are 10 called meteorites, our valuable samples of the Solar System. -
Genesis Radiation Environment
https://ntrs.nasa.gov/search.jsp?R=20070014073 2019-08-30T00:44:36+00:00Z 1 Source of Acquisition NASA Marshall Space Flight Center Genesis Radiation Environment Joseph I. Minow* NASA Marshull Space Flight Center, Huntsville, AL 35812 USA Richard L. Altstatt' and William C. Skipworth* Jacobs Engineering, Marshall Space Flight Center Group, Huntsville, AL 35812 USA The Genesis spacecraft launched on 8 August 2001 sampled solar wind environments at L1 from 2001 to 2004. After the Science Capsule door was opened, numerous foils and samples were exposed to the various solar wind environments during periods including slow solar wind from the streamer belts, fast solar wind flows from coronal holes, and coronal mass ejections. The Survey and Examination of Eroded Returned Surfaces (SEERS) program led by NASA's Space Environments and Effects program had initiated access for the space materials community to the remaining Science Capsule hardware after the science samples had been removed for evaluation of materials exposure to the space environment. This presentation will describe the process used to generate a reference radiation Genesis Radiation Environment developed for the SEERS program for use by the materials science community in their analyses of the Genesis hardware. I. Introduction ASA's Space Environments and Effects (SEE) Program initiated the Surveying and Examination of Eroded N Returned Surfaces (SEERS) Initiative in 2003. The goal of the Initiative was to provide leadership in the engineering analysis of returned flight hardware by supporting a comprehensive effort to understand environmental effects due to solar W, ionizing radiation, plasmas, neutral contamination, meteoroids, and other conditions experienced during the mission (not primary science mission objectives). -
The Mars 2001 Odyssey and the "Autogen" Process
View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by DigitalCommons@USU AUTOGEN: The Mars 2001 Odyssey and the "Autogen" Process By Roy Gladden June 6, 2002 Jet Propulsion Laboratory / California Institute of Technology Pasadena, California Abstract In many deep space and interplanetary missions, it is widely recognized that the scheduling of many commands to operate a spacecraft can follow very regular patterns. In these instances, it is greatly desired to convert the knowledge of how commands are scheduled into algorithms in order to automate the development of command sequences. In doing so, it is possible to dramatically reduce the number of people and work-hours that are required to develop a sequence. The development of the "autogen" process for the Mars 2001 Odyssey spacecraft is one implementation of this concept. It combines robust scheduling algorithms with software that is compatible with pre- existing "uplink" software, and literally reduced the duration of some sequence generation processes from weeks to minutes. This paper outlines the "autogen" tools and processes and describes how they have been implemented for the various phases of the Mars 2001 Odyssey mission. What is autogen? manually building the commands for lengthy and well- understood command sequences, efforts were made to The term "autogen" is applied in two different ways. develop software that would automatically schedule the First, "autogen," in its broadest sense, identifies a commands given certain input data. By taking the process that may be used to automatically generate knowledge for how commands were to be scheduled sequences for a spacecraft and, second, it is a Solaris and writing algorithms to replicate that knowledge, it script that has been used to facilitate this process. -
Asteroid Family Ages. 2015. Icarus 257, 275-289
Icarus 257 (2015) 275–289 Contents lists available at ScienceDirect Icarus journal homepage: www.elsevier.com/locate/icarus Asteroid family ages ⇑ Federica Spoto a,c, , Andrea Milani a, Zoran Knezˇevic´ b a Dipartimento di Matematica, Università di Pisa, Largo Pontecorvo 5, 56127 Pisa, Italy b Astronomical Observatory, Volgina 7, 11060 Belgrade 38, Serbia c SpaceDyS srl, Via Mario Giuntini 63, 56023 Navacchio di Cascina, Italy article info abstract Article history: A new family classification, based on a catalog of proper elements with 384,000 numbered asteroids Received 6 December 2014 and on new methods is available. For the 45 dynamical families with >250 members identified in this Revised 27 April 2015 classification, we present an attempt to obtain statistically significant ages: we succeeded in computing Accepted 30 April 2015 ages for 37 collisional families. Available online 14 May 2015 We used a rigorous method, including a least squares fit of the two sides of a V-shape plot in the proper semimajor axis, inverse diameter plane to determine the corresponding slopes, an advanced error model Keywords: for the uncertainties of asteroid diameters, an iterative outlier rejection scheme and quality control. The Asteroids best available Yarkovsky measurement was used to estimate a calibration of the Yarkovsky effect for each Asteroids, dynamics Impact processes family. The results are presented separately for the families originated in fragmentation or cratering events, for the young, compact families and for the truncated, one-sided families. For all the computed ages the corresponding uncertainties are provided, and the results are discussed and compared with the literature. The ages of several families have been estimated for the first time, in other cases the accu- racy has been improved. -
The Eternal Fire of Vesta
2016 Ian McElroy All Rights Reserved THE ETERNAL FIRE OF VESTA Roman Cultural Identity and the Legitimacy of Augustus By Ian McElroy A thesis submitted to the Graduate School-New Brunswick Rutgers, The State University of New Jersey In partial fulfillment of the requirements For the degree of Master of Arts Graduate Program in Classics Written under the direction of Dr. Serena Connolly And approved by ___________________________________________ ___________________________________________ ___________________________________________ New Brunswick, New Jersey October 2016 ABSTRACT OF THE THESIS The Eternal Fire of Vesta: Roman Cultural Identity and the Legitimacy of Augustus By Ian McElroy Thesis Director: Dr. Serena Connolly Vesta and the Vestal Virgins represented the very core of Roman cultural identity, and Augustus positioned his public image beside them to augment his political legitimacy. Through analysis of material culture, historiography, and poetry that originated during the principate of Augustus, it becomes clear that each of these sources of evidence contributes to the public image projected by the leader whom Ronald Syme considered to be the first Roman emperor. The Ara Pacis Augustae and the Res Gestae Divi Augustae embody the legacy the Emperor wished to establish, and each of these cultural works contain significant references to the Vestal Virgins. The study of history Livy undertook also emphasized the pathetic plight of Rhea Silvia as she was compelled to become a Vestal. Livy and his contemporary Dionysius of Halicarnassus explored the foundation of the Vestal Order and each writer had his own explanation about how Numa founded it. The Roman poets Virgil, Horace, Ovid, and Tibullus incorporated Vesta and the Vestals into their work in a way that offers further proof of the way Augustus insinuated himself into the fabric of Roman cultural identity by associating his public image with these honored priestesses. -
March 21–25, 2016
FORTY-SEVENTH LUNAR AND PLANETARY SCIENCE CONFERENCE PROGRAM OF TECHNICAL SESSIONS MARCH 21–25, 2016 The Woodlands Waterway Marriott Hotel and Convention Center The Woodlands, Texas INSTITUTIONAL SUPPORT Universities Space Research Association Lunar and Planetary Institute National Aeronautics and Space Administration CONFERENCE CO-CHAIRS Stephen Mackwell, Lunar and Planetary Institute Eileen Stansbery, NASA Johnson Space Center PROGRAM COMMITTEE CHAIRS David Draper, NASA Johnson Space Center Walter Kiefer, Lunar and Planetary Institute PROGRAM COMMITTEE P. Doug Archer, NASA Johnson Space Center Nicolas LeCorvec, Lunar and Planetary Institute Katherine Bermingham, University of Maryland Yo Matsubara, Smithsonian Institute Janice Bishop, SETI and NASA Ames Research Center Francis McCubbin, NASA Johnson Space Center Jeremy Boyce, University of California, Los Angeles Andrew Needham, Carnegie Institution of Washington Lisa Danielson, NASA Johnson Space Center Lan-Anh Nguyen, NASA Johnson Space Center Deepak Dhingra, University of Idaho Paul Niles, NASA Johnson Space Center Stephen Elardo, Carnegie Institution of Washington Dorothy Oehler, NASA Johnson Space Center Marc Fries, NASA Johnson Space Center D. Alex Patthoff, Jet Propulsion Laboratory Cyrena Goodrich, Lunar and Planetary Institute Elizabeth Rampe, Aerodyne Industries, Jacobs JETS at John Gruener, NASA Johnson Space Center NASA Johnson Space Center Justin Hagerty, U.S. Geological Survey Carol Raymond, Jet Propulsion Laboratory Lindsay Hays, Jet Propulsion Laboratory Paul Schenk, -
Temples and Priests of Sol in the City of Rome
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/242330197 Temples and Priests of Sol in the City of Rome Article in Mouseion Journal of the Classical Association of Canada · January 2010 DOI: 10.1353/mou.2010.0073 CITATIONS READS 0 550 1 author: S. E. Hijmans University of Alberta 23 PUBLICATIONS 9 CITATIONS SEE PROFILE Available from: S. E. Hijmans Retrieved on: 03 November 2016 Temples and Priests of Sol in the city of Rome Summary It was long thought that Sol Invictus was a Syrian sun-god, and that Aurelian imported his cult into Rome after he had vanquished Zenobia and captured Palmyra. This sun-god, it was postulated, differed fundamentally from the old Roman sun-god Sol Indiges, whose cult had long since disappeared from Rome. Scholars thus tended to postulate a hiatus in the first centuries of imperial rule during which there was little or no cult of the sun in Rome. Recent studies, however, have shown that Aurelian’s Sol Invictus was neither new nor foreign, and that the cult of the sun was maintained in Rome without interruption from the city’s earliest history until the demise of Roman religion(s). This continuity of the Roman cult of Sol sheds a new light on the evidence for priests and temples of Sol in Rome. In this article I offer a review of that evidence and what we can infer from it the Roman cult of the sun. A significant portion of the article is devoted to a temple of Sol in Trastevere, hitherto misidentified. -
Space Resources Roundtable II : November 8-10, 2000, Golden, Colorado
SPACE RESOURCES RouNDTABLE II November 8-10, 2000 Colorado School of Mines Golden, Colorado LPI Contribution No. 1070 SPACE RESOURCES ROUNDTABLE II November 8-10, 2000 Golden, Colorado Sponsored by Colorado School of Mines Lunar and Planetary Institute National Aeronautics and Space Administration Steering Committee Joe Burris, WorldTradeNetwork.net David Criswell, University of Houston Michael B. Duke, Lunar and Planetary Institute Mike O'Neal, NASA Kennedy Space Center Sanders Rosenberg, InSpace Propulsion, Inc. Kevin Reed, Marconi, Inc. Jerry Sanders, NASA Johnson Space Center Frank Schowengerdt, Colorado School of Mines Bill Sharp, Colorado School of Mines LPI Contribution No. 1070 Compiled in 2000 by LUNAR AND PLANETARY INSTITUTE The Institute is operated by the Universities Space Research Association under Contract No. NASW-4574 with the National Aeronautics and Space Administration. Matenal in this volume may be copied wnhout restraint for library, abstract service, education. or personal research purposes; however, republication of any paper or portion thereof requ1res the wriuen permission of the authors as well as the appropnate acknowledgment of this publication. Abstracts in this volume may be cited as Author A B. (2000) Title of abstract. In Space Resources Roundtable II. p x.x . LPI Contnbuuon No. 1070. Lunar and Planetary Institute. Houston. This repon is distributed by ORDER DEPARTMENT Lunar and Planetary Institute 3600 Bay Area Boulevard Houston TX 77058-1113 Phone: 281-486-2172 Fax: 281-486-2186 E-mail: [email protected] Mail order requestors will be invoiced for the cost of shipping and handling. LPI Contribution No 1070 iii Preface This volume contains abstracts that have been accepted for presentation at the Space Resources Roundtable II, November 8-10, 2000.