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This data has achieved Bronze level on 25 October 2015 which means this data makes a great start at the basics of publishing open data.
Advanced In-Space Propulsion (AISP): Micro Electrospray Propulsion (MEP) Project
Summary
- Type of release
- a one-off release of a single dataset
- Data Licence
- Not Applicable
- Content Licence
- Creative Commons CCZero
- Verification
- automatically awarded
- Release Date
- 9 April 2015
- Modified Date
- 8 July 2015
- Publishers
- National Aeronautics and Space Administration
- Keywords
- active, marshall-space-flight-center, project
- Identifier
- advanced-in-space-propulsion-aisp-micro-electrospray-propulsion-mep-project
- Landing Page
- http://techport.nasa.gov/view/13649
- Maintainers
- Stephen Gaddis stephen.w.gaddis@nasa.gov
- Language
- en-US
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Description
<p>Propulsion technology is often critical for space missions.&nbsp;High-value missions could be done with very&nbsp;small spacecraft, even CubeSats, but these nanosatellites&nbsp;currently have little propulsion capability. After&nbsp;CubeSats are deployed, they usually just tumble or drift&nbsp;away from the transport spacecraft. They cannot transfer&nbsp;to higher value orbits, maintain their orbit, or even&nbsp;deorbit. Larger spacecraft would benefit from highprecision&nbsp;attitude-control systems to maintain the&nbsp;desired orbit and point in the desired direction. Existing&nbsp;attitude-control systems, like reaction wheels, are very&nbsp;complex and may have insufficient lifetimes. NASA is&nbsp;investing in Microfluidic Electrospray Propulsion (MEP)&nbsp;thrusters to provide the new propulsion capabilities to&nbsp;address both of these mission needs.</p><p>Chemical propulsion systems are limited to the combustion&nbsp;energy available in the chemical bonds of the&nbsp;fuel and the acceleration provided by a converging-diverging&nbsp;nozzle. Electric propulsion uses electric&nbsp;power to accelerate propellant to very high exhaust&nbsp;velocities&mdash;up to 10 times greater than for chemical&nbsp;propulsion. This increases the momentum transfer efficiency&nbsp;or the fuel economy. The propellant efficiency of&nbsp;thrusters, which is proportional to the exhaust velocity,&nbsp;is referred to as the &ldquo;specific impulse,&rdquo; or ISP, measured&nbsp;in seconds. The state of the art for CubeSats is cold&nbsp;gas propulsion with an ISP of 50 to 80 s. The chemical&nbsp;propulsion main engine for the space shuttles demonstrated&nbsp;an ISP of 450 s. However, the target ISP for MEP&nbsp;systems is greater than 1500 s&mdash;enough to transfer a&nbsp;1-kg 10-cm cube from low Earth orbit to interplanetary&nbsp;space with only 200 g of propellant.</p>
General Information
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This data is described at
http://catalog.data.gov/dataset/advanced-in-space-propulsion-aisp-micro-electrospray-propulsion-mep-project Do you think this data is incorrect? Let us know
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This data is published by
National Aeronautics and Space Administration Do you think this data is incorrect? Let us know
Legal Information
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The rights statement is at
http://catalog.data.gov/dataset/advanced-in-space-propulsion-aisp-micro-electrospray-propulsion-mep-project Do you think this data is incorrect? Let us know
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Outside the US, this data is available under
Creative Commons CCZero Do you think this data is incorrect? Let us know
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There are
yes, and the rights are all held by the same person or organisation Do you think this data is incorrect? Let us know
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The content is available under
Creative Commons CCZero Do you think this data is incorrect? Let us know
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The rights statement includes data about
its data licence Do you think this data is incorrect? Let us know
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This data contains
no data about individuals Do you think this data is incorrect? Let us know
Practical Information
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The data appears in this collection
http://catalog.data.gov/organization/nasa-gov Do you think this data is incorrect? Let us know
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The accuracy or relevance of this data will
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The data is
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Technical Information
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This data is published at
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