Mini-RF: Difference between revisions
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[[Image:ExampleImageMini-RF.png|thumb|right|An example Mini-RF total radar backscatter image taken in the 12.6 cm band. It shows a fresh lunar impact crater with an ejecta blanket surrounding it.]] |
[[Image:ExampleImageMini-RF.png|thumb|right|An example Mini-RF total radar backscatter image taken in the 12.6 cm band. It shows a fresh lunar impact crater with an ejecta blanket surrounding it.]] |
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The Miniature Radio-Frequency instrument ('''Mini-RF''') is a [[synthetic aperture radar]] (SAR) instrument on the [[Lunar Reconnaissance Orbiter]] (LRO), which is currently in orbit around the [[Moon]]. It has a resolution of 30 m/pixel and two wavelength bands, a primary band at 12.6 cm and a secondary band at 4.2 cm.<ref name=NozetteEtAl10>{{cite journal|title=The Lunar Reconnaissance Orbiter Miniature Radio Frequency (Mini-RF) Technology Demonstration|last1=Nozette|first1=Stewart|last2=Spudis|first2=Paul|last3=Bussey|first3=Ben|last4=Jensen|first4=Robert|last5=Raney|first5=Keith|coauthors=et al.|journal=Space Science Reviews|date=January 2010|volume=150|pages=285–302}}</ref><ref name=NeishEtAl11>{{cite journal|title=The nature of lunar volatiles as revealed by Mini-RF observations of the LCROSS impact site|date=January, 2011|journal=Journal of Geophysical Research|authors=C. D. Neish, D. B. J. Bussey, P. Spudis, W. Marshall, B. J. Thomson, et al.}}</ref> The original principal investigator of Mini-RF, [[Stewart Nozette]], was arrested for espionage, and the current principal investigator is Ben Bussey of the [[Applied Physics Laboratory]], where Mini-RF was built. Previous [[synthetic aperture radar|SAR]] instruments, such as the radar on the [[Magellan (spacecraft)|Magellan]] mission to [[Venus]], were large, massive, power-hungry, and expensive. Intended as a demonstration of cheap, lightweight SAR technology, the Mini-RF instrument was designed in response to these concerns. Because it was a technology demonstration, Mini-RF is sometimes not included in lists of [[Lunar Reconnaissance Orbiter|LRO]]'s instruments. |
The Miniature Radio-Frequency instrument ('''Mini-RF''') is a [[synthetic aperture radar]] (SAR) instrument on the [[Lunar Reconnaissance Orbiter]] (LRO), which is currently in orbit around the [[Moon]]. It has a resolution of 30 m/pixel and two wavelength bands, a primary band at 12.6 cm and a secondary band at 4.2 cm.<ref name=NozetteEtAl10>{{cite journal|title=The Lunar Reconnaissance Orbiter Miniature Radio Frequency (Mini-RF) Technology Demonstration|last1=Nozette|first1=Stewart|last2=Spudis|first2=Paul|last3=Bussey|first3=Ben|last4=Jensen|first4=Robert|last5=Raney|first5=Keith|coauthors=et al.|journal=Space Science Reviews|date=January 2010|volume=150|pages=285–302|bibcode = 2010SSRv..150..285N |doi = 10.1007/s11214-009-9607-5 }}</ref><ref name=NeishEtAl11>{{cite journal|title=The nature of lunar volatiles as revealed by Mini-RF observations of the LCROSS impact site|date=January, 2011|journal=Journal of Geophysical Research|authors=C. D. Neish, D. B. J. Bussey, P. Spudis, W. Marshall, B. J. Thomson, et al.}}</ref> The original principal investigator of Mini-RF, [[Stewart Nozette]], was arrested for espionage, and the current principal investigator is Ben Bussey of the [[Applied Physics Laboratory]], where Mini-RF was built. Previous [[synthetic aperture radar|SAR]] instruments, such as the radar on the [[Magellan (spacecraft)|Magellan]] mission to [[Venus]], were large, massive, power-hungry, and expensive. Intended as a demonstration of cheap, lightweight SAR technology, the Mini-RF instrument was designed in response to these concerns. Because it was a technology demonstration, Mini-RF is sometimes not included in lists of [[Lunar Reconnaissance Orbiter|LRO]]'s instruments. |
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Radar is one of the few remote sensing tools capable of distinguishing water ice from other forms of water [[lunar water|thought to be present of the Moon]], such as hydrated minerals and water [[adsorbed]] onto the lunar surface. Although the [[LCROSS]] mission, which deliberately crashed a probe into the lunar surface to look for water, detected water in Cabeus Crater, Mini-RF did not detect water ice at the LCROSS impact site.<ref name=NeishEtAl11 /> |
Radar is one of the few remote sensing tools capable of distinguishing water ice from other forms of water [[lunar water|thought to be present of the Moon]], such as hydrated minerals and water [[adsorbed]] onto the lunar surface. Although the [[LCROSS]] mission, which deliberately crashed a probe into the lunar surface to look for water, detected water in Cabeus Crater, Mini-RF did not detect water ice at the LCROSS impact site.<ref name=NeishEtAl11 /> |
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Revision as of 16:34, 29 April 2012
The Miniature Radio-Frequency instrument (Mini-RF) is a synthetic aperture radar (SAR) instrument on the Lunar Reconnaissance Orbiter (LRO), which is currently in orbit around the Moon. It has a resolution of 30 m/pixel and two wavelength bands, a primary band at 12.6 cm and a secondary band at 4.2 cm.[1][2] The original principal investigator of Mini-RF, Stewart Nozette, was arrested for espionage, and the current principal investigator is Ben Bussey of the Applied Physics Laboratory, where Mini-RF was built. Previous SAR instruments, such as the radar on the Magellan mission to Venus, were large, massive, power-hungry, and expensive. Intended as a demonstration of cheap, lightweight SAR technology, the Mini-RF instrument was designed in response to these concerns. Because it was a technology demonstration, Mini-RF is sometimes not included in lists of LRO's instruments.
Radar is one of the few remote sensing tools capable of distinguishing water ice from other forms of water thought to be present of the Moon, such as hydrated minerals and water adsorbed onto the lunar surface. Although the LCROSS mission, which deliberately crashed a probe into the lunar surface to look for water, detected water in Cabeus Crater, Mini-RF did not detect water ice at the LCROSS impact site.[2]
In January, 2011, after completion of Mini-RF's primary mission objectives, NASA announced that Mini-RF had suffered a critical failure and was no longer collecting useful scientific data.
References
- ^ Nozette, Stewart; Spudis, Paul; Bussey, Ben; Jensen, Robert; Raney, Keith (January 2010). "The Lunar Reconnaissance Orbiter Miniature Radio Frequency (Mini-RF) Technology Demonstration". Space Science Reviews. 150: 285–302. Bibcode:2010SSRv..150..285N. doi:10.1007/s11214-009-9607-5.
{{cite journal}}: Unknown parameter|coauthors=ignored (|author=suggested) (help) - ^ a b "The nature of lunar volatiles as revealed by Mini-RF observations of the LCROSS impact site". Journal of Geophysical Research. January, 2011.
{{cite journal}}: Check date values in:|date=(help); Cite uses deprecated parameter|authors=(help)
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