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Displaying 1—10 of 1000 matches for query "Optimization_and_Guidance_of_Very_Low-Thrust_Transfers_to_Geostationary_Orbit" retrieved in 0.042 sec with these stats:
- "optim" found 277 times in 207 documents
- "and" found 284902 times in 19361 documents
- "guidanc" found 1022 times in 608 documents
- "of" found 295472 times in 20552 documents
- "veri" found 9190 times in 2138 documents
- "low" found 4946 times in 3607 documents
- "thrust" found 1544 times in 962 documents
- "transfer" found 2048 times in 1358 documents
- "to" found 237450 times in 18716 documents
- "geostationari" found 320 times in 237 documents
- "orbit" found 23590 times in 8183 documents
... optimization algorithm is presented to compute the minimum-time transfer between two orbits, including the phasing with a desired spacecraft. Very-low thrust means several hundred revolutions to perform the large change in orbital elements. The optimal control solution of ...
... activity, orbital replaceable unit
'''JBIS Reference Code ''' - 2011.64.252
'''Number of Pages''' - 7
Abstract
With the completion of International Space Station (ISS) assembly, planning and daily activities are transitioning from construction to maintenance and repair ... execution of specific tasks.
In 2007, a study was performed to identify and develop preliminary removal and replacement (R&R) timelines for those Orbital Replaceable Units (ORUs) that would cause a loss of redundancy to ...
In 2007, a study was performed to identify and develop preliminary removal and replacement (R&R) timelines for those Orbital Replaceable Units (ORUs) that would cause a loss of redundancy to ...
... as main source of thrust. A direct transcription method based on Finite Elements in Time was used for the design and optimisation of the entire low-thrust gravity assist transfer from the Earth to Europa. Prior to that, a global search algorithm was used to generate a set of suitable first guess solutions for the transfer to Jupiter, and for ...
... flow and discharging through the bypass nozzle to produce thrust. In both modes the turbo-compressor is driven by a helium turbine which has contra rotating stages to improve its efficiency at low rotational speed and reduce the number of stages required. Due to ...
... has to withstand is relatively low due to the modest in-flight inertial accelerations coupled with the very low density of liquid hydrogen. Also the requirement to accommo- date considerable temperature differentials between the internal cryogenic tankage and the aerodynamically heated outer skin of ...
... going very fast, but you cannot pedal up a steep hill in high gear. Launching from the Earth's surface is like going up a steep hill. Once you are in orbit ... speed to reach Mars in a few weeks instead of six to eight months.
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Answer provided by David Gump & Gary Hudson
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space ...
... use special spacecraft that are meant to operate only in space to land on the Moon or Mars. We will transfer from the spacecraft that carried us into orbit to these special landers before descent.
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Answer provided by David Gump & Gary Hudson
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to ...
... Contents of the Journal of the British Interplanetary Society for Volume 54 54
'''Page ''' - 19-26
'''Year''' - 2001
'''Keywords''' - Stellar mass function, star forming regions, star number density, brown dwarfs, very low ... systems to become UBOs (un-bound objects). Many of these objects can be expected to have a mass at and below the deuterium fusion limiting mass of ~13MJup and ...
... to getting into orbit is to go very, very fast—17,500 miles per hour (mph). For many years, the only way to reach orbit will be rockets that can push a passenger capsule to ...
Answer provided by David Gump & Gary Hudson
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
Image:9781894959421.jpg '''Buy ...
... its very nature is dangerous. Space designers do their best to make things safe, by thinking ahead about problems one might face in a space environment, adding safety factors into their calculations, and ... unavailable.
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Answer provided by Robert T. Bigelow
Image:K2S logosmall.jpg Question and Answer extracted from the book Kids to Space - by Lonnie Schorer
Image:9781894959421.jpg '''Buy This ...
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