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Gravimetric Missions in Japanese Lunar Explorer, SELENE
Gravimetric Missions in Japanese Lunar Explorer, SELENE H. Hanada1), T. Iwata2), N. Namiki3), N. Kawano1), K. Asari1), T. Ishikawa1), F. Kikuchi1), Q. Liu1), K. Matsumoto1), H. Noda1), J. Ping4), S. Tsuruta1), K. Iwadate1), O. Kameya1), S. Kuji1), Y. Tamura1), X. Hong4), Y. Aili5), S. Ellingsen6) 1) National Astronomical Observatory of Japan 2) Japan Aerospace Exploration Agency 3) Kyushu University 4) Shanghai Astronomical Observatory, Chinese Academy of Sciences 5)Urumqi Astronomical Observatory,Chinese Academy of Sciences 6) University of Tasmania ABSTRACT SELENE (SElenological and Engineering Explorer), is a mission in preparation for launch in 2007 by JAXA (Japan Aerospace Exploration Agency), it carries 15 missions, two of which (RSAT and VRAD) are gravimetric experiments using radio waves. The RSAT (Relay Satellite Transponder) mission will undertake 4-way Doppler measurements of the main orbiter through the Rstar sub-satellite. This is in addition to 2-way Doppler and ranging measurements of the satellites and will realize the first direct observation of the gravity fields on the far side of the Moon. The VRAD (Differential VLBI Radio Source) mission involves observing the trajectories of Rstar and Vstar using differential VLBI with both a Japanese network (VERA), and an international network. We have already finished development of the onboard instruments and are carrying out proto-flight tests under various conditions. We have also performed test VLBI observations of orbiters with the international network. 1. INTRODUCTION Although it is the nearest astronomical body to the Earth, there are many unsolved problems relating to the origin and the evolution of the Moon. Numerous lunar explorations have been made with the aim of elucidating these problems, however, we still know little of the deep interior of the Moon. -
Mars Scenario-Based Visioning: Logisitical Optimization of Transportation Architectures
MARS SCENARIO-BASED VISIONING: LOGISITICAL OPTIMIZATION OF TRANSPORTATION ARCHITECTURES GEORGIA INSTITUTE OF TECHNOLOGY Contributors: Ashraf Charania Kris Cowart Brad St. Germain Tadashi Sakai Roberto Salinas Kirk Sorensen Jeffrey Tooley Shannan Wilson Advisor: Dr. John R. Olds Assistant Professor, School of Aerospace Engineering Director, Space Systems Design Lab (SSDL) Georgia Institute of Technology ABSTRACT The purpose of this conceptual design investigation is to examine transportation forecasts for future human missions to Mars. Scenario-Based Visioning is used to generate possible future demand projections. These scenarios are then coupled with availability, cost, and capacity parameters for indigenously designed Mars Transfer Vehicles (solar electric, nuclear thermal, and chemical propulsion types) and Earth-to-Orbit launch vehicles (current, future, and indigenous) to provide a cost-conscious dual-phase launch manifest to meet such future demand. A simulator named M-SAT (Mars Scenario Analysis Tool) is developed using this method. This simulation is used to examine three specific transportation scenarios to Mars: a limited "flags and footprints" mission, a more ambitious scientific expedition similar to an expanded version of the Design Reference Mission from NASA, and a long-term colonization scenario. Initial results from the simulation indicate that chemical propulsion systems might be the architecture of choice for all three scenarios. With this mind, "what if" analyses were performed which indicated that if nuclear production costs were reduced by 30% for the colonization scenario, then the nuclear architecture would have a lower life cycle cost than the chemical. Results indicate that the most cost-effective solution to the Mars transportation problem is to plan for segmented development, this involves development of one vehicle at one opportunity and derivatives of that vehicle at subsequent opportunities. -
Martian Crater Morphology
ANALYSIS OF THE DEPTH-DIAMETER RELATIONSHIP OF MARTIAN CRATERS A Capstone Experience Thesis Presented by Jared Howenstine Completion Date: May 2006 Approved By: Professor M. Darby Dyar, Astronomy Professor Christopher Condit, Geology Professor Judith Young, Astronomy Abstract Title: Analysis of the Depth-Diameter Relationship of Martian Craters Author: Jared Howenstine, Astronomy Approved By: Judith Young, Astronomy Approved By: M. Darby Dyar, Astronomy Approved By: Christopher Condit, Geology CE Type: Departmental Honors Project Using a gridded version of maritan topography with the computer program Gridview, this project studied the depth-diameter relationship of martian impact craters. The work encompasses 361 profiles of impacts with diameters larger than 15 kilometers and is a continuation of work that was started at the Lunar and Planetary Institute in Houston, Texas under the guidance of Dr. Walter S. Keifer. Using the most ‘pristine,’ or deepest craters in the data a depth-diameter relationship was determined: d = 0.610D 0.327 , where d is the depth of the crater and D is the diameter of the crater, both in kilometers. This relationship can then be used to estimate the theoretical depth of any impact radius, and therefore can be used to estimate the pristine shape of the crater. With a depth-diameter ratio for a particular crater, the measured depth can then be compared to this theoretical value and an estimate of the amount of material within the crater, or fill, can then be calculated. The data includes 140 named impact craters, 3 basins, and 218 other impacts. The named data encompasses all named impact structures of greater than 100 kilometers in diameter. -
11 Fall Unamagazine
FALL 2011 • VOLUME 19 • No. 3 FOR ALUMNI AND FRIENDS OF THE UNIVERSITY OF NORTH ALABAMA Cover Story 10 ..... Thanks a Million, Harvey Robbins Features 3 ..... The Transition 14 ..... From Zero to Infinity 16 ..... Something Special 20 ..... The Sounds of the Pride 28 ..... Southern Laughs 30 ..... Academic Affairs Awards 33 ..... Excellence in Teaching Award 34 ..... China 38 ..... Words on the Breeze Departments 2 ..... President’s Message 6 ..... Around the Campus 45 ..... Class Notes 47 ..... In Memory FALL 2011 • VOLUME 19 • No. 3 for alumni and friends of the University of North Alabama president’s message ADMINISTRATION William G. Cale, Jr. President William G. Cale, Jr. The annual everyone to attend one of these. You may Vice President for Academic Affairs/Provost Handy festival contact Dr. Alan Medders (Vice President John Thornell is drawing large for Advancement, [email protected]) Vice President for Business and Financial Affairs crowds to the many or Mr. Mark Linder (Director of Athletics, Steve Smith venues where music [email protected]) for information or to Vice President for Student Affairs is being played. At arrange a meeting for your group. David Shields this time of year Sometimes we measure success by Vice President for University Advancement William G. Cale, Jr. it is impossible the things we can see, like a new building. Alan Medders to go anywhere More often, though, success happens one Vice Provost for International Affairs in town and not hear music. The festival student at a time as we provide more and Chunsheng Zhang is also a reminder that we are less than better educational opportunities. -
Caverns Measureless to Man: Interdisciplinary Planetary Science & Technology Analog Research Underwater Laser Scanner Survey (Quintana Roo, Mexico)
Caverns Measureless to Man: Interdisciplinary Planetary Science & Technology Analog Research Underwater Laser Scanner Survey (Quintana Roo, Mexico) by Stephen Alexander Daire A Thesis Presented to the Faculty of the USC Graduate School University of Southern California In Partial Fulfillment of the Requirements for the Degree Master of Science (Geographic Information Science and Technology) May 2019 Copyright © 2019 by Stephen Daire “History is just a 25,000-year dash from the trees to the starship; and while it’s going on its wild and woolly but it’s only like that, and then you’re in the starship.” – Terence McKenna. Table of Contents List of Figures ................................................................................................................................ iv List of Tables ................................................................................................................................. xi Acknowledgements ....................................................................................................................... xii List of Abbreviations ................................................................................................................... xiii Abstract ........................................................................................................................................ xvi Chapter 1 Planetary Sciences, Cave Survey, & Human Evolution................................................. 1 1.1. Topic & Area of Interest: Exploration & Survey ....................................................................12 -
Protons in the Near Lunar Wake Observed by the SARA Instrument on Board Chandrayaan-1
FUTAANA ET AL. PROTONS IN DEEP WAKE NEAR MOON 1 Protons in the Near Lunar Wake Observed by the SARA 2 Instrument on Board Chandrayaan-1 3 Y. Futaana, 1 S. Barabash, 1 M. Wieser, 1 M. Holmström, 1 A. Bhardwaj, 2 M. B. Dhanya, 2 R. 4 Sridharan, 2 P. Wurz, 3 A. Schaufelberger, 3 K. Asamura 4 5 --- 6 Y. Futaana, Swedish Institute of Space Physics, Box 812, Kiruna, SE-98128, Sweden. 7 ([email protected]) 8 9 10 1 Swedish Institute of Space Physics, Box 812, Kiruna, SE-98128, Sweden 11 2 Space Physics Laboratory, Vikram Sarabhai Space Center, Trivandrum 695 022, India 12 3 Physikalisches Institut, University of Bern, Sidlerstrasse 5, CH-3012 Bern, Switzerland 13 4 Institute of Space and Astronautical Science, 3-1-1 Yoshinodai, Sagamihara, Japan 14 Index Terms 15 6250 Moon 16 5421 Interactions with particles and fields 17 2780 Magnetospheric Physics: Solar wind interactions with unmagnetized bodies 18 7807 Space Plasma Physics: Charged particle motion and acceleration 19 Abstract 20 Significant proton fluxes were detected in the near wake region of the Moon by an ion mass 21 spectrometer on board Chandrayaan-1. The energy of these nightside protons is slightly higher than 22 the energy of the solar wind protons. The protons are detected close to the lunar equatorial plane at 23 a 140˚ solar zenith angle, i.e., ~50˚ behind the terminator at a height of 100 km. The protons come 24 from just above the local horizon, and move along the magnetic field in the solar wind reference 25 frame. -
Resource Utilization and Site Selection for a Self-Sufficient Martian Outpost
NASA/TM-98-206538 Resource Utilization and Site Selection for a Self-Sufficient Martian Outpost G. James, Ph.D. G. Chamitoff, Ph.D. D. Barker, M.S., M.A. April 1998 The NASA STI Program Office... in Profile Since its founding, NASA has been dedicated to CONTRACTOR REPORT. Scientific and the advancement of aeronautics and space technical findings by NASA-sponsored science. The NASA Scientific and Technical contractors and grantees. Information (STI) Program Office plays a key part in helping NASA maintain this important CONFERENCE PUBLICATION. Collected role. papers from scientific and technical confer- ences, symposia, seminars, or other meetings The NASA STI Program Office is operated by sponsored or cosponsored by NASA. Langley Research Center, the lead center for NASA's scientific and technical information. SPECIAL PUBLICATION. Scientific, The NASA STI Program Office provides access technical, or historical information from to the NASA STI Database, the largest NASA programs, projects, and mission, often collection of aeronautical and space science STI concerned with subjects having substantial in the word. The Program Office is also public interest. NASA's institutional mechanism for disseminating the results of its research and • TECHNICAL TRANSLATION. development activities. These results are English-language translations of foreign scientific published by NASA in the NASA STI Report and technical material pertinent to NASA's Series, which includes the following report mission. types: Specialized services that complement the STI TECHNICAL PUBLICATION. Reports of Program Office's diverse offerings include completed research or a major significant creating custom thesauri, building customized phase of research that present the results of databases, organizing and publishing research NASA programs and include extensive results.., even providing videos. -
Transactions 1905
THE Royal Astronomical Society of Canada TRANSACTIONS FOR 1905 (INCLUDING SELECTED PAPERS AND PROCEEDINGS) EDITED BY C. A CHANT. TORONTO: ROYAL ASTRONOMICAL PRINT, 1906. The Royal Astronomical Society of Canada. THE Royal Astronomical Society of Canada TRANSACTIONS FOR 1905 (INCLUDING SELECTED PAPERS AND PROCEEDINGS) EDITED BY C. A CHANT. TORONTO: ROYAL ASTRONOMICAL PRINT, 1906. TABLE OF CONTENTS. The Dominion Observatory, Ottawa (Frontispiece) List of Officers, Fellows and A ssociates..................... - - 3 Treasurer’s R eport.....................--------- 12 President’s Address and Summary of Work ------ 13 List of Papers and Lectures, 1905 - - - - ..................... 26 The Dominion Observatory at Ottawa - - W. F. King 27 Solar Spots and Magnetic Storms for 1904 Arthur Harvey 35 Stellar Legends of American Indians - - J. C. Hamilton 47 Personal Profit from Astronomical Study - R. Atkinson 51 The Eclipse Expedition to Labrador, August, 1905 A. T. DeLury 57 Gravity Determinations in Labrador - - Louis B. Stewart 70 Magnetic and Meteorological Observations at North-West River, Labrador - - - - R. F. Stupart 97 Plates and Filters for Monochromatic and Three-Color Photography of the Corona J. S. Plaskett 89 Photographing the Sun and Moon with a 5-inch Refracting Telescope . .......................... D. B. Marsh 108 The Astronomy of Tennyson - - - - John A. Paterson 112 Achievements of Nineteenth Century Astronomy , L. H. Graham 125 A Lunar Tide on Lake Huron - - - - W. J. Loudon 131 Contributions...............................................J. Miller Barr I. New Variable Stars - - - - - - - - - - - 141 II. The Variable Star ξ Bootis -------- 143 III. The Colors of Helium Stars - - - ..................... 144 IV. A New Problem in Solar Physics ------ 146 Stellar Classification ------ W. Balfour Musson 151 On the Possibility of Fife in Other Worlds A. -
FACTORS" with Multiple Compact Satellites for the Space-Earth Coupling Mechanisms
PCG21-05 Japan Geoscience Union Meeting 2018 Science Objectives and Mission Plan of "FACTORS" with Multiple Compact Satellites for the Space-Earth Coupling Mechanisms *Masafumi Hirahara1, Yoshifumi Saito2, Hirotsugu Kojima3, Naritoshi Kitamura2, Kazushi Asamura 2, Ayako Matsuoka2, Takeshi Sakanoi4, Yoshizumi Miyoshi1, Shin-ichiro Oyama1, Masatoshi Yamauchi5, Yuichi Tsuda2, Nobutaka Bando2 1. Institute of Space-Earth Environmental Research, Nagoya University, 2. Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3. Research Institute for Sustainable Humanosphere, Kyoto University, 4. Planetary Plasma and Atmospheric Research Center, Graduate School of Science, Tohoku University, 5. Swedish Institute of Space Physics After the successful launch and the recent observational progresses of the ERG(Arase) satellite mission, we have been leading the next community exploration mission in the Japanese space physics research. In the ERG mission, we are focusing on the unique space plasma mechanisms and conditions causing the terrestrial radiation belt through the wave-particle interaction analyses and the triangle-type research system consisting the satellite and ground-based observations and the data analyses/modelings/simulations. Our next exploration target is the space-Earth connection processes/mechanisms responsible for the formation and coupling of the terrestrial magnetosphere/ionoshere/thermosphere and the acceleration and transportation of the space plasma and neutral atmospheric particles, which could be -
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, -
Solar System Exploration Strategic Road Map and Venus Exploration
Solar System Exploration Strategic Road Map and Venus Exploration Presentation at Lunar and Planetary Science Conference James A. Cutts Solar System Exploration Directorate, JPL James R. Robinson Science Missions Directorate, NASA HQ March 16, 2005 03/16/2005 Predecisional - for discussion purposes only 1 Purpose of this briefing • To inform the Venus Science community about the status of the solar system exploration strategic planning process that is currently being carried out by NASA • To seek inputs on future priorities for Venus exploration for inclusion in the nation’s solar system exploration program for input to this process 03/16/2005 Predecisional - for discussion purposes only 2 Strategic Planning and Venus Exploration? • NASA is conducting a strategic planning activity that builds upon the President’s Vision for Space Exploration published in January 2004. • Three Strategic Road Map teams are formulating plans for exploration of the solar system. – Mars Exploration – Lunar Exploration – Solar System Exploration (covering Venus exploration) – co chaired by • Orlando Figueroa (Assoc Director, Science NASA HQ) • Scott Hubbard (Director, ARC) • Jonathan Lunine, University of Arizona and Chair of NASA Solar System Exploration subcommittee • The Solar System Exploration Road Map team is on a very aggressive schedule. It is scheduled to submit its report for review by the National Research Council by June 1, 2005 An important function of this plan will be to guide the NASA investment in new technologies and related capabilities over the next decade. 03/16/2005 Predecisional - for discussion purposes only 3 Strategic Road Map - Solar System Exploration Committee Members • Orlando Figueroa, NASA Science Mission Directorate co-chair G. -
Seasonal Melting and the Formation of Sedimentary Rocks on Mars, with Predictions for the Gale Crater Mound
Seasonal melting and the formation of sedimentary rocks on Mars, with predictions for the Gale Crater mound Edwin S. Kite a, Itay Halevy b, Melinda A. Kahre c, Michael J. Wolff d, and Michael Manga e;f aDivision of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125, USA bCenter for Planetary Sciences, Weizmann Institute of Science, P.O. Box 26, Rehovot 76100, Israel cNASA Ames Research Center, Mountain View, California 94035, USA dSpace Science Institute, 4750 Walnut Street, Suite 205, Boulder, Colorado, USA eDepartment of Earth and Planetary Science, University of California Berkeley, Berkeley, California 94720, USA f Center for Integrative Planetary Science, University of California Berkeley, Berkeley, California 94720, USA arXiv:1205.6226v1 [astro-ph.EP] 28 May 2012 1 Number of pages: 60 2 Number of tables: 1 3 Number of figures: 19 Preprint submitted to Icarus 20 September 2018 4 Proposed Running Head: 5 Seasonal melting and sedimentary rocks on Mars 6 Please send Editorial Correspondence to: 7 8 Edwin S. Kite 9 Caltech, MC 150-21 10 Geological and Planetary Sciences 11 1200 E California Boulevard 12 Pasadena, CA 91125, USA. 13 14 Email: [email protected] 15 Phone: (510) 717-5205 16 2 17 ABSTRACT 18 A model for the formation and distribution of sedimentary rocks on Mars 19 is proposed. The rate{limiting step is supply of liquid water from seasonal 2 20 melting of snow or ice. The model is run for a O(10 ) mbar pure CO2 atmo- 21 sphere, dusty snow, and solar luminosity reduced by 23%.