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Outer Planet Exploration With Advanced Radioisotope Electric Propulsion
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Book Synopsis Radioisotope Power Systems by : National Research Council
Download or read book Radioisotope Power Systems written by National Research Council and published by National Academies Press. This book was released on 2009-07-14 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spacecraft require electrical energy. This energy must be available in the outer reaches of the solar system where sunlight is very faint. It must be available through lunar nights that last for 14 days, through long periods of dark and cold at the higher latitudes on Mars, and in high-radiation fields such as those around Jupiter. Radioisotope power systems (RPSs) are the only available power source that can operate unconstrained in these environments for the long periods of time needed to accomplish many missions, and plutonium-238 (238Pu) is the only practical isotope for fueling them. Plutonium-238 does not occur in nature. The committee does not believe that there is any additional 238Pu (or any operational 238Pu production facilities) available anywhere in the world.The total amount of 238Pu available for NASA is fixed, and essentially all of it is already dedicated to support several pending missions-the Mars Science Laboratory, Discovery 12, the Outer Planets Flagship 1 (OPF 1), and (perhaps) a small number of additional missions with a very small demand for 238Pu. If the status quo persists, the United States will not be able to provide RPSs for any subsequent missions.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721523597 Total Pages :30 pages Book Rating :4.5/5 (235 download)
Book Synopsis Radioisotope Electric Propulsion for Fast Outer Planetary Orbiters by : National Aeronautics and Space Administration (NASA)
Download or read book Radioisotope Electric Propulsion for Fast Outer Planetary Orbiters written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-19 with total page 30 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent interest in outer planetary targets by the Office of Space Science has spurred the search for technology options to enable relatively quick missions to outer planetary targets. Several options are being explored including solar electric propelled stages combined with aerocapture at the target and nuclear electric propulsion. Another option uses radioisotope powered electric thrusters to reach the outer planets. Past work looked at using this technology to provide faster flybys. A better use for this technology is for outer planet orbiters. Combined with medium class launch vehicles and a new direct trajectory these small, sub-kilowatt ion thrusters and Stirling radioisotope generators were found to allow missions as fast as 5 to 12 years for objects from Saturn to Pluto, respectively. Key to the development is light spacecraft and science payload technologies. Oleson, Steven and Benson, Scott and Gefert, Leon and Patterson, Michael and Schreiber, Jeffrey Glenn Research Center NASA/TM-2002-211893, NAS 1.15:211893, E-13575, AIAA Paper 2002-3967
Book Synopsis Outer Planet Exploration with Advanced Radioisotope Electric Propulsion by :
Download or read book Outer Planet Exploration with Advanced Radioisotope Electric Propulsion written by and published by . This book was released on 2002 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Priorities in Space Science Enabled by Nuclear Power and Propulsion by : National Research Council
Download or read book Priorities in Space Science Enabled by Nuclear Power and Propulsion written by National Research Council and published by National Academies Press. This book was released on 2006-04-20 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt: In 2003, NASA began an R&D effort to develop nuclear power and propulsion systems for solar system exploration. This activity, renamed Project Prometheus in 2004, was initiated because of the inherent limitations in photovoltaic and chemical propulsion systems in reaching many solar system objectives. To help determine appropriate missions for a nuclear power and propulsion capability, NASA asked the NRC for an independent assessment of potentially highly meritorious missions that may be enabled if space nuclear systems became operational. This report provides a series of space science objectives and missions that could be so enabled in the period beyond 2015 in the areas of astronomy and astrophysics, solar system exploration, and solar and space physics. It is based on but does not reprioritize the findings of previous NRC decadal surveys in those three areas.
Book Synopsis Compass Final Report by : National Aeronautics Administration
Download or read book Compass Final Report written by National Aeronautics Administration and published by CreateSpace. This book was released on 2014-11-16 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radioisotope Electric Propulsion (REP) has been shown in past studies to enable missions to outer planetary bodies including the orbiting of Centaur asteroids. Key to the feasibility for REP missions are long life, low power electric propulsion (EP) devices, low mass Radioisotope Power System (RPS) and light spacecraft (S/C) components. In order to determine the key parameters for EP devices to perform these REP missions a design study was completed to design an REP S/C to orbit a Centaur in a New Frontiers (NF) cost cap. The design shows that an orbiter using several long lived (approx. 200 kg xenon (Xe) throughput), low power (approx. 700 W) Hall thrusters teamed with six (150 W each) Advanced Stirling Radioisotope Generators (ASRG) can deliver 60 kg of science instruments to a Centaur in 10 yr within the NF cost cap. Optimal specific impulses (Isp) for the Hall thrusters were found to be around 2000 s with thruster efficiencies over 40 percent. Not only can the REP S/C enable orbiting a Centaur (when compared to an all chemical mission only capable of flybys) but the additional power from the REP system can be used to enhance science and simplify communications.
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781719497275 Total Pages :78 pages Book Rating :4.4/5 (972 download)
Book Synopsis Compass Final Report by : National Aeronautics and Space Administration (NASA)
Download or read book Compass Final Report written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 78 pages. Available in PDF, EPUB and Kindle. Book excerpt: Radioisotope Electric Propulsion (REP) has been shown in past studies to enable missions to outer planetary bodies including the orbiting of Centaur asteroids. Key to the feasibility for REP missions are long life, low power electric propulsion (EP) devices, low mass Radioisotope Power System (RPS) and light spacecraft (S/C) components. In order to determine the key parameters for EP devices to perform these REP missions a design study was completed to design an REP S/C to orbit a Centaur in a New Frontiers (NF) cost cap. The design shows that an orbiter using several long lived (approx.200 kg xenon (Xe) throughput), low power (approx.700 W) Hall thrusters teamed with six (150 W each) Advanced Stirling Radioisotope Generators (ASRG) can deliver 60 kg of science instruments to a Centaur in 10 yr within the NF cost cap. Optimal specific impulses (Isp) for the Hall thrusters were found to be around 2000 s with thruster efficiencies over 40 percent. Not only can the REP S/C enable orbiting a Centaur (when compared to an all chemical mission only capable of flybys) but the additional power from the REP system can be used to enhance science and simplify communications. The mission design detailed in this report is a Radioisotope Power System (RPS) powered EP science orbiter to the Centaur Thereus with arrival 10 yr after launch, ending in a 1 yr science mapping mission. Along the trajectory, approximately 1.5 yr into the mission, the REP S/C does a flyby of the Trojan asteroid Tlepolemus. The total (Delta)V of the trajectory is 8.9 km/s. The REP S/C is delivered to orbit on an Atlas 551 class launch vehicle with a Star 48 B solid rocket stage Oleson, Steven R. and McGuire, Melissa L. Glenn Research Center CENTAUR LAUNCH VEHICLE; ELECTRIC PROPULSION; HALL THRUSTERS; TRAJECTORIES; SPECIFIC IMPULSE; ASTEROIDS; ATLAS LAUNCH VEHICLES; FLYBY MISSIONS; TROJAN ASTEROIDS; MASS; PLANETS; XENON
Book Synopsis Exploration of the Outer Heliosphere and the Local Interstellar Medium by : National Research Council
Download or read book Exploration of the Outer Heliosphere and the Local Interstellar Medium written by National Research Council and published by National Academies Press. This book was released on 2004-10-25 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report is the summary of a workshop held in May 2003 by the Space Studies Board's Committee on Solar and Space Physics to synthesize understanding of the physics of the outer heliosphere and the critical role played by the local interstellar medium (LISM) and to identify directions for the further exploration of this challenging environment.
Book Synopsis Space Technology and Applications International Forum - STAIF 2004 by : American Institute of Physics
Download or read book Space Technology and Applications International Forum - STAIF 2004 written by American Institute of Physics and published by American Institute of Physics. This book was released on 2004-02-18 with total page 1292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Albuquerque, New Mexico, 8-11 February 2004
Author :United States. Congress. Senate. Committee on Appropriations. Subcommittee on Commerce, Justice, Science, and Related Agencies Publisher : ISBN 13 : Total Pages :922 pages Book Rating :4.3/5 ( download)
Book Synopsis Commerce, Justice, Science, and Related Agencies Appropriations for Fiscal Year 2007 by : United States. Congress. Senate. Committee on Appropriations. Subcommittee on Commerce, Justice, Science, and Related Agencies
Download or read book Commerce, Justice, Science, and Related Agencies Appropriations for Fiscal Year 2007 written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Commerce, Justice, Science, and Related Agencies and published by . This book was released on 2006 with total page 922 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Departments of Commerce, Justice, Science, and Related Agencies Appropriations for Fiscal Year ... by : United States. Congress. Senate. Committee on Appropriations
Download or read book Departments of Commerce, Justice, Science, and Related Agencies Appropriations for Fiscal Year ... written by United States. Congress. Senate. Committee on Appropriations and published by . This book was released on 2007 with total page 924 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :United States. Congress. House. Committee on Appropriations. Subcommittee on Science, State, Justice, and Commerce, and Related Agencies Publisher : ISBN 13 : Total Pages :918 pages Book Rating :4.F/5 ( download)
Book Synopsis Science, the Departments of State, Justice, and Commerce, and Related Agencies Appropriations for 2007 by : United States. Congress. House. Committee on Appropriations. Subcommittee on Science, State, Justice, and Commerce, and Related Agencies
Download or read book Science, the Departments of State, Justice, and Commerce, and Related Agencies Appropriations for 2007 written by United States. Congress. House. Committee on Appropriations. Subcommittee on Science, State, Justice, and Commerce, and Related Agencies and published by . This book was released on 2006 with total page 918 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Outer Planets Exploration 1972-1985 by : National Research Council (U.S.). Space Science Board
Download or read book Outer Planets Exploration 1972-1985 written by National Research Council (U.S.). Space Science Board and published by . This book was released on 1971 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 11-14, 2004, Fort Lauderdale, FL.: 04-3950 - 04-3999 by :
Download or read book 40th AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit July 11-14, 2004, Fort Lauderdale, FL.: 04-3950 - 04-3999 written by and published by . This book was released on 2004 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Robotic Exploration of the Solar System by : Paolo Ulivi
Download or read book Robotic Exploration of the Solar System written by Paolo Ulivi and published by Springer. This book was released on 2014-09-16 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Robotic Exploration of the Solar System, Paolo Ulivi and David Harland provide a comprehensive account of the design and management of deep-space missions, the spacecraft involved – some flown, others not – their instruments, and their scientific results. This fourth volume in the series covers the period 2004 to the present day and features: coverage of the Rosetta and Curiosity missions up to the end of 2013 coverage of Mars missions since 2005, including the Mars Reconnaissance Orbiter, Phoenix and Fobos-Grunt, plus a description of plans for future robotic exploration of the Red Planet coverage of all planetary missions launched between 2004 and 2013, including the Deep Impact cometary mission, the MESSENGER Mercury orbiter, the New Horizons Pluto flyby and the Juno Jupiter orbiter the first complete description of the Chinese Chang’e 2 asteroid flyby mission ever published extensive coverage of future missions, including the European BepiColombo Mercury orbiter and international plans to revisit the most interesting moons of Jupiter and Saturn.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309463378 Total Pages :27 pages Book Rating :4.3/5 (94 download)
Book Synopsis Report Series: Committee on Astrobiology and Planetary Science by : National Academies of Sciences, Engineering, and Medicine
Download or read book Report Series: Committee on Astrobiology and Planetary Science written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2017-07-28 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study discusses the publicly available studies of future flagship- and New Frontiers-class missions NASA initiated since the completion of Vision and Voyages. The report considers the priority areas as defined in Vision and Voyages where publicly available mission studies have not been undertaken; appropriate mechanisms by which mission-study gaps might be filled in the near- to mid-term future; and other activities that might be undertaken in the near- to mid-term future to optimize and/or expedite the work of the next planetary science decadal survey committee.
Book Synopsis ALSEP Termination Report by : James R. Bates
Download or read book ALSEP Termination Report written by James R. Bates and published by . This book was released on 1979 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Space Nuclear Radioisotope Systems by : David Buden
Download or read book Space Nuclear Radioisotope Systems written by David Buden and published by . This book was released on 2011 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: For operating in severe environments, long life and reliability, radioisotope power systems have proven to be the most successful of all space power sources. Two Voyager missions launched in 1977 to study Jupiter, Saturn, Uranus, Neptune, and their satellites, rings and magnetic fields and continuing to the heliosphere region are still functioning over thirty years later. Radioisotope power systems have been used on the Moon, exploring the planets, and exiting our solar system. There success is a tribute to the outstanding engineering, quality control and attention to details that went into the design and production of radioisotope power generation units. Space nuclear radioisotope systems take the form of using the thermal energy from the decay of radioisotopes and converting this energy to electric power. Reliability and safety are of prime importance. Mission success depends on the ability of being able to safely launch the systems and on having sufficient electrical power over the life of the mission. Graceful power degradation over the life of a mission is acceptable as long as it is within predictable limits. Electrical power conversion systems with inherent redundancy, such as thermoelectric conversion systems, have been favored to date. Also, radioactive decay heat has been used to maintain temperatures in spacecraft at acceptable conditions for other components. This book describes how radioisotope systems work, the requirements and safety design considerations, the various systems that have been developed, and their operational history.
