1 Solar Sails
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China's Touch on the Moon
commentary China’s touch on the Moon Long Xiao As well as being a milestone in technology, the Chang’e lunar exploration programme establishes China as a contributor to space science. With much still to learn about the Moon, fieldwork beyond Earth’s orbit must be an international effort. hen China’s Chang’e 3 spacecraft geological history of the landing site. touched down on the lunar High-resolution images have shown rocky Wsurface on 14 December 2013, terrain with outcrops of porphyritic basalt, it was the first soft landing on the Moon such as Loong Rock (Fig. 2). Analysis since the Soviet Union’s Luna 24 mission of data collected by the penetrating in 1976. Following on from the decades- Chang’e 3 radar should lead to identification of the old triumphs of the Luna missions and underlying layers of regolith, impact breccia NASA’s Apollo programme, the Chang’e and basalt. lunar exploration programme is leading the China’s robotic field geologist Yutu has charge of a new generation of exploration Basalt outcrop Yutu rover stalled in its traverse of the lunar surface, on the lunar surface. Much like the earlier but plans for the Chang’e 5 sample-return space programmes, the China National mission are moving forward. The primary Space Administration (CNSA) has been objective of the mission will be to return developing its capabilities and technologies 100 m 2 kg of samples from the surface and depths step by step in a series of Chang’e missions UNIVERSITY STATE © NASA/GSFC/ARIZONA of up to 2 m, probably also in the relatively of increasing ambition: orbiting and Figure 1 | The Chinese Chang’e 3 spacecraft and smooth northern Mare Imbrium. -
Highlights in Space 2010
International Astronautical Federation Committee on Space Research International Institute of Space Law 94 bis, Avenue de Suffren c/o CNES 94 bis, Avenue de Suffren UNITED NATIONS 75015 Paris, France 2 place Maurice Quentin 75015 Paris, France Tel: +33 1 45 67 42 60 Fax: +33 1 42 73 21 20 Tel. + 33 1 44 76 75 10 E-mail: : [email protected] E-mail: [email protected] Fax. + 33 1 44 76 74 37 URL: www.iislweb.com OFFICE FOR OUTER SPACE AFFAIRS URL: www.iafastro.com E-mail: [email protected] URL : http://cosparhq.cnes.fr Highlights in Space 2010 Prepared in cooperation with the International Astronautical Federation, the Committee on Space Research and the International Institute of Space Law The United Nations Office for Outer Space Affairs is responsible for promoting international cooperation in the peaceful uses of outer space and assisting developing countries in using space science and technology. United Nations Office for Outer Space Affairs P. O. Box 500, 1400 Vienna, Austria Tel: (+43-1) 26060-4950 Fax: (+43-1) 26060-5830 E-mail: [email protected] URL: www.unoosa.org United Nations publication Printed in Austria USD 15 Sales No. E.11.I.3 ISBN 978-92-1-101236-1 ST/SPACE/57 *1180239* V.11-80239—January 2011—775 UNITED NATIONS OFFICE FOR OUTER SPACE AFFAIRS UNITED NATIONS OFFICE AT VIENNA Highlights in Space 2010 Prepared in cooperation with the International Astronautical Federation, the Committee on Space Research and the International Institute of Space Law Progress in space science, technology and applications, international cooperation and space law UNITED NATIONS New York, 2011 UniTEd NationS PUblication Sales no. -
Astronomy 2008 Index
Astronomy Magazine Article Title Index 10 rising stars of astronomy, 8:60–8:63 1.5 million galaxies revealed, 3:41–3:43 185 million years before the dinosaurs’ demise, did an asteroid nearly end life on Earth?, 4:34–4:39 A Aligned aurorae, 8:27 All about the Veil Nebula, 6:56–6:61 Amateur astronomy’s greatest generation, 8:68–8:71 Amateurs see fireballs from U.S. satellite kill, 7:24 Another Earth, 6:13 Another super-Earth discovered, 9:21 Antares gang, The, 7:18 Antimatter traced, 5:23 Are big-planet systems uncommon?, 10:23 Are super-sized Earths the new frontier?, 11:26–11:31 Are these space rocks from Mercury?, 11:32–11:37 Are we done yet?, 4:14 Are we looking for life in the right places?, 7:28–7:33 Ask the aliens, 3:12 Asteroid sleuths find the dino killer, 1:20 Astro-humiliation, 10:14 Astroimaging over ancient Greece, 12:64–12:69 Astronaut rescue rocket revs up, 11:22 Astronomers spy a giant particle accelerator in the sky, 5:21 Astronomers unearth a star’s death secrets, 10:18 Astronomers witness alien star flip-out, 6:27 Astronomy magazine’s first 35 years, 8:supplement Astronomy’s guide to Go-to telescopes, 10:supplement Auroral storm trigger confirmed, 11:18 B Backstage at Astronomy, 8:76–8:82 Basking in the Sun, 5:16 Biggest planet’s 5 deepest mysteries, The, 1:38–1:43 Binary pulsar test affirms relativity, 10:21 Binocular Telescope snaps first image, 6:21 Black hole sets a record, 2:20 Black holes wind up galaxy arms, 9:19 Brightest starburst galaxy discovered, 12:23 C Calling all space probes, 10:64–10:65 Calling on Cassiopeia, 11:76 Canada to launch new asteroid hunter, 11:19 Canada’s handy robot, 1:24 Cannibal next door, The, 3:38 Capture images of our local star, 4:66–4:67 Cassini confirms Titan lakes, 12:27 Cassini scopes Saturn’s two-toned moon, 1:25 Cassini “tastes” Enceladus’ plumes, 7:26 Cepheus’ fall delights, 10:85 Choose the dome that’s right for you, 5:70–5:71 Clearing the air about seeing vs. -
In-Flight Validation of Akatsuki X-Band Deep Space Telecommunication Technologies
Trans. JSASS Aerospace Tech. Japan Vol. 10, No. ists28, pp. To_3_7-To_3_12, 2012 Topics In-FlightIn-Flight Validation Validation of Akatsuki of Akatsuki X-Band X-Band Deep SpaceDeep SpaceTelecommu- Telecommunicationnication Technologies Technologies By Tomoaki TODA and Nobuaki ISHII Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, Sagamihara, Japan (Received June 24th, 2011) Akatsuki is the Japanese first Venus exploration program. The spacecraft was successfully launched in May 21st 2010 from Tanegashima Space Center via H II-A vehicle. One of her missions is a flight demonstration of her telecommunication system developed for supporting Japanese future deep space missions. During her half-year cruising phase heading for Venus, we had conducted checkouts of the system. The key technologies are a deep space transponder, a set of onboard antennas, and power amplifiers. They all were newly introduced into Akatsuki. Their performances had been tested through the half-year operations and been investigated by using collective data obtained in the experiments. Our regenerative ranging was also demonstrated in these activities. We proved that the newly introduced telecommunication system worked exactly as we had designed and that the system performances were the same as evaluated on the ground. In this paper, we will summarize these in-flight validations for the Akatsuki telecommunication system. Key Words: Akatsuki, PLANET-C, Deep Space Telecommunications, Regenerative Ranging 1. Introduction block diagram of Akatsuki. The redundancy is given to TRPs and 10 W solid-state power amplifiers (SSPAs). The TWTA is Akatsuki is the Venus exploration program of Japan Aero- provided for the increase of scientific data acquisition. -
The Heliogyro Reloaded
THE HELIOGYRO RELOADED W. K. Wilkie, J. E. Warren Structural Dynamics Branch NASA Langley Research Center Hampton, VA M. W. Thomson, P. D. Lisman, P. E. Walkemeyer Jet Propulsion Laboratory California Institute of Technology Pasadena, CA D. V. Guerrant, D. A. Lawrence Department of Aerospace Engineering Sciences University of Colorado Boulder, CO ABSTRACT The heliogyro is a high-performance, spinning solar sail architecture that uses long - order of kilometers - reflective membrane strips to produce thrust from solar radiation pressure. The heliogyro’s membrane “blades” spin about a central hub and are stiffened by centrifugal forces only, making the design exceedingly light weight. Blades are also stowed and deployed from rolls; eliminating deployment and packaging problems associated with handling extremely large, and delicate, membrane sheets used with most traditional square-rigged or spinning disk solar sail designs. The heliogyro solar sail concept was first advanced in the 1960s by MacNeal. A 15 km diameter version was later extensively studied in the 1970s by JPL for an ambitious Comet Halley rendezvous mission, but ultimately not selected due to the need for a risk-reduction flight demonstration. Demonstrating system-level feasibility of a large, spinning heliogyro solar sail on the ground is impossible; however, recent advances in microsatellite bus technologies, coupled with the successful flight demonstration of reflectance control technologies on the JAXA IKAROS solar sail, now make an affordable, small-scale heliogyro technology flight demonstration potentially feasible. In this paper, we will present an overview of the history of the heliogyro solar sail concept, with particular attention paid to the MIT 200-meter-diameter heliogyro study of 1989, followed by a description of our updated, low-cost, heliogyro flight demonstration concept. -
Preparation of Papers for AIAA Journals
An Overview of Solar Sail Propulsion within NASA Les Johnson1 NASA George C. Marshall Space Flight Center, Huntsville, AL 35812, USA Grover A. Swartzlander2 Rochester Institute of Technology, Rochester, NY 14623 and Alexandra Artusio-Glimpse 3 Rochester Institute of Technology, Rochester, NY 14623 Solar Sail Propulsion (SSP) is a high-priority new technology within The National Aeronautics and Space Administration (NASA), and several potential future space missions have been identified that will require SSP. Small and mid-sized technology demonstration missions using solar sails have flown or will soon fly in space. Multiple mission concept studies have been performed to determine the system level SSP requirements for their implementation and, subsequently, to drive the content of relevant technology programs. The status of SSP technology and potential future mission implementation within the United States (US) will be described. Nomenclature V delta-v (change in velocity) AU = astronomical unit g = gravitational (measurement of acceleration felt as weight; a force per unit mass) GeV = giga-electron-volts kg = kilogram L1 = Lagrange point 1 m2 = meters squared I. Introduction Solar Sail Propulsion (SSP) was identified as a high-priority new technology by the Space Studies Board of the National Research Council in their 2012 Heliophysics Decadal Survey [1], and several potential future space 1 Deputy Manager, Advanced Concepts Office, Mail Code ED04, NASA MSFC, Huntsville, AL 35812 2 Associate Professor, Department of Physics, 54 Lomb Memorial Drive, Rochester, NY 14623 3 Graduate Student, Department of Physics, 54 Lomb Memorial Drive, Rochester, NY 14623 missions have been proposed that will require SSP to be achieved. -
<> CRONOLOGIA DE LOS SATÉLITES ARTIFICIALES DE LA
1 SATELITES ARTIFICIALES. Capítulo 5º Subcap. 10 <> CRONOLOGIA DE LOS SATÉLITES ARTIFICIALES DE LA TIERRA. Esta es una relación cronológica de todos los lanzamientos de satélites artificiales de nuestro planeta, con independencia de su éxito o fracaso, tanto en el disparo como en órbita. Significa pues que muchos de ellos no han alcanzado el espacio y fueron destruidos. Se señala en primer lugar (a la izquierda) su nombre, seguido de la fecha del lanzamiento, el país al que pertenece el satélite (que puede ser otro distinto al que lo lanza) y el tipo de satélite; este último aspecto podría no corresponderse en exactitud dado que algunos son de finalidad múltiple. En los lanzamientos múltiples, cada satélite figura separado (salvo en los casos de fracaso, en que no llegan a separarse) pero naturalmente en la misma fecha y juntos. NO ESTÁN incluidos los llevados en vuelos tripulados, si bien se citan en el programa de satélites correspondiente y en el capítulo de “Cronología general de lanzamientos”. .SATÉLITE Fecha País Tipo SPUTNIK F1 15.05.1957 URSS Experimental o tecnológico SPUTNIK F2 21.08.1957 URSS Experimental o tecnológico SPUTNIK 01 04.10.1957 URSS Experimental o tecnológico SPUTNIK 02 03.11.1957 URSS Científico VANGUARD-1A 06.12.1957 USA Experimental o tecnológico EXPLORER 01 31.01.1958 USA Científico VANGUARD-1B 05.02.1958 USA Experimental o tecnológico EXPLORER 02 05.03.1958 USA Científico VANGUARD-1 17.03.1958 USA Experimental o tecnológico EXPLORER 03 26.03.1958 USA Científico SPUTNIK D1 27.04.1958 URSS Geodésico VANGUARD-2A -
Lightsail Program Status: One Down, One to Go
SSC15-V-3 LightSail Program Status: One Down, One to Go Rex Ridenoure, Riki Munakata, Alex Diaz, Stephanie Wong Ecliptic Enterprises Corporation Pasadena, CA; (626) 278-0435 [email protected] Barbara Plante Boreal Space Hayward, CA; (510) 915-4717 [email protected] Doug Stetson Space Science and Exploration Consulting Group Pasadena, CA, (818) 854-8921 [email protected] Dave Spencer Georgia Institute of Technology Atlanta, GA, (770) 331-2340 [email protected] Justin Foley California Polytechnic University, San Luis Obispo San Luis Obispo, CA, (805) 756-5074 [email protected] ABSTRACT The LightSail program involves two 3U CubeSats designed to advance solar sailing technology state of the art. The entire program is privately funded by members and supporters of The Planetary Society, the world’s largest non- profit space advocacy organization. Spacecraft design started in 2009; by the end of 2011 both spacecraft had largely been built but not fully tested, and neither had a firm launch commitment. Following an 18-month program pause during 2012-2013, the effort was resumed after launch opportunities had been secured for each spacecraft. The first LightSail spacecraft—dedicated primarily to demonstrating the solar sail deployment process—was launched into Earth orbit on 2015 May 20 as a secondary payload aboard an Atlas 5 rocket, and on June 9 mission success was declared. The mission plan for the second LightSail includes demonstration of solar sailing in Earth orbit, among other objectives. It is on track for a launch in 2016 aboard a Falcon Heavy rocket as a key element of the Prox-1 mission. -
October 2016 ASTRO-H Spacecraft Fragments Inside
National Aeronautics and Space Administration OrbitalQuarterly Debris News Volume 20, Issue 4 October 2016 ASTRO-H Spacecraft Fragments Inside... During Payload Check-out Operations New SOZ Breakup in July 2016 2 The ASTRO-H/Hitomi/New X-Ray Telescope actual rotation of the spacecraft. The ACS assessed the BeiDou G2 Spacecraft (NeXT) high energy astrophysics observatory satellite spacecraft to be in a critical situation and attempted to Fragments in GEO Orbit 2 experienced an operationally-induced fragmentation use the RCS to enter a Safe-Hold mode. Unfortunately, event on 26 March 2016 at approximately 1:42 GMT. incorrect thruster control parameters led to the thrusters WorldView 2 Spacecraft The spacecraft (International Designator 2016-012A, increasing the angular acceleration of the spacecraft. As Fragments in July 2016 3 U.S. Strategic Command [USSTRATCOM] Space rotational speed exceeded design parameters, several Indian RISAT-1 Spacecraft Surveillance Network [SSN] catalog number 41337), major components separated from the spacecraft, Experiences Possible managed and operated by the Japan Aerospace leading to mission loss. JAXA post mortem analyses Fragmentation 4 Exploration Agency (JAXA) but including payloads from NASA/Goddard Space continued on page 2 Disposal of GOES-3 4 Flight Center, the Canadian UNCOPUOS Reaches Space Agency, and the European Consensus on First Set of Space Agency, had concluded Guidelines for Long-term its Phase 0 Critical Operations Sustainability of OSA 5 Phase and was approximately 60% complete in its Initial Changes to ODPO Website 6 Function Check Phase. The ISS Debris Avoidance Process 7 spacecraft had been on-orbit slightly over one month and CubeSat PMD by Drag was in a 31.0° inclination, 578 Enhancement 8 by 536 km orbit at the time of Abstracts 10 the event. -
Deep Space Exploration Roadmap
TABLE OF CONTENTS Deep Space Exploration Roadmap Chang'E-1 Chang'E-3 Chang'E-4 HX-1 Chang'E-P1 Chang'E-P2 ILRS 2007.10 2013.12 2018 2020 2023 2026 2030 Chang'E-2 T1 Reentry Chang'E-5 Chang'E-6 Asteroid HX-2 Jupiter Mission 2010.10 test 2014.10 2019 2020 Mission 2028 2030 2024 1 Deep Space Exploration Roadmap Chang'E-1 Chang'E-2 Chang'E-3 Launched in Oct., 2007; Launched in Oct., 2010; Launched on Dec. 2nd, Carried out lunar global 2013; Explored Sun-earth L2; survey through remote On Dec. 14th, 2013, S/C December 13th, 2012, flyby sensing. Obtained lunar successfully soft landed in Asteroid 4179 Toutatis. global image and elevation designated area of Sinus map with 120m in Iridium. resolution. Mapping the abundance and distribution of various chemical elements . 2 Deep Space Exploration Roadmap Chang’E-4 Mission Land at Aitken basin of moon farside by human S/C for the first time. Communicate relay at Earth-moon L2 point. Conduct low frequency radio observation, shallow structure investigation. At flight model development phase. Relay satellite Launched in May, 2018. 3 Deep Space Exploration Roadmap Chang'E-5 Mission Autonomous lunar sampling and return to the Earth. Launched by Long March 5 rocket at Wenchang Satellite Launch Center in 2019. Study topography and geological structure, mineral composition, regolith thickness and structure. 4 Deep Space Exploration Roadmap First Mars Mission HX-1 To be launched in 2020. Scientific Objective • Feature topography and geology and their variations; • Characterize soil and water-ice content. -
Space Security 2010
SPACE SECURITY 2010 spacesecurity.org SPACE 2010SECURITY SPACESECURITY.ORG iii Library and Archives Canada Cataloguing in Publications Data Space Security 2010 ISBN : 978-1-895722-78-9 © 2010 SPACESECURITY.ORG Edited by Cesar Jaramillo Design and layout: Creative Services, University of Waterloo, Waterloo, Ontario, Canada Cover image: Artist rendition of the February 2009 satellite collision between Cosmos 2251 and Iridium 33. Artwork courtesy of Phil Smith. Printed in Canada Printer: Pandora Press, Kitchener, Ontario First published August 2010 Please direct inquires to: Cesar Jaramillo Project Ploughshares 57 Erb Street West Waterloo, Ontario N2L 6C2 Canada Telephone: 519-888-6541, ext. 708 Fax: 519-888-0018 Email: [email protected] iv Governance Group Cesar Jaramillo Managing Editor, Project Ploughshares Phillip Baines Department of Foreign Affairs and International Trade, Canada Dr. Ram Jakhu Institute of Air and Space Law, McGill University John Siebert Project Ploughshares Dr. Jennifer Simons The Simons Foundation Dr. Ray Williamson Secure World Foundation Advisory Board Hon. Philip E. Coyle III Center for Defense Information Richard DalBello Intelsat General Corporation Theresa Hitchens United Nations Institute for Disarmament Research Dr. John Logsdon The George Washington University (Prof. emeritus) Dr. Lucy Stojak HEC Montréal/International Space University v Table of Contents TABLE OF CONTENTS PAGE 1 Acronyms PAGE 7 Introduction PAGE 11 Acknowledgements PAGE 13 Executive Summary PAGE 29 Chapter 1 – The Space Environment: -
2013 Commercial Space Transportation Forecasts
Federal Aviation Administration 2013 Commercial Space Transportation Forecasts May 2013 FAA Commercial Space Transportation (AST) and the Commercial Space Transportation Advisory Committee (COMSTAC) • i • 2013 Commercial Space Transportation Forecasts About the FAA Office of Commercial Space Transportation The Federal Aviation Administration’s Office of Commercial Space Transportation (FAA AST) licenses and regulates U.S. commercial space launch and reentry activity, as well as the operation of non-federal launch and reentry sites, as authorized by Executive Order 12465 and Title 51 United States Code, Subtitle V, Chapter 509 (formerly the Commercial Space Launch Act). FAA AST’s mission is to ensure public health and safety and the safety of property while protecting the national security and foreign policy interests of the United States during commercial launch and reentry operations. In addition, FAA AST is directed to encourage, facilitate, and promote commercial space launches and reentries. Additional information concerning commercial space transportation can be found on FAA AST’s website: http://www.faa.gov/go/ast Cover: The Orbital Sciences Corporation’s Antares rocket is seen as it launches from Pad-0A of the Mid-Atlantic Regional Spaceport at the NASA Wallops Flight Facility in Virginia, Sunday, April 21, 2013. Image Credit: NASA/Bill Ingalls NOTICE Use of trade names or names of manufacturers in this document does not constitute an official endorsement of such products or manufacturers, either expressed or implied, by the Federal Aviation Administration. • i • Federal Aviation Administration’s Office of Commercial Space Transportation Table of Contents EXECUTIVE SUMMARY . 1 COMSTAC 2013 COMMERCIAL GEOSYNCHRONOUS ORBIT LAUNCH DEMAND FORECAST .