The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Zita Martins - One of the best experts on this subject based on the ideXlab platform.
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Organic Matter in the Solar System—Implications for Future on-Site and Sample Return Missions
Space Science Reviews, 2020Co-Authors: Zita Martins, Queenie Hoi Shan Chan, Lydie Bonal, Ashley King, Hikaru YabutaAbstract:Solar system bodies like comets, asteroids, meteorites and dust particles contain organic matter with different abundances, structures and chemical composition. This chapter compares the similarities and differences of the organic composition in these planetary bodies. Furthermore, these links are explored in the context of detecting the most pristine organic material, either by on-site analysis or Sample Return Missions. Finally, we discuss the targets of potential future Sample Return Missions, as well as the contamination controls that should be in place in order to successfully study pristine organic matter.
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organic matter in the solar system implications for future on site and Sample Return Missions
Space Science Reviews, 2020Co-Authors: Zita Martins, Queenie Hoi Shan Chan, Lydie Bonal, A J King, Hikaru YabutaAbstract:Solar system bodies like comets, asteroids, meteorites and dust particles contain organic matter with different abundances, structures and chemical composition. This chapter compares the similarities and differences of the organic composition in these planetary bodies. Furthermore, these links are explored in the context of detecting the most pristine organic material, either by on-site analysis or Sample Return Missions. Finally, we discuss the targets of potential future Sample Return Missions, as well as the contamination controls that should be in place in order to successfully study pristine organic matter.
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uv to far ir reflectance spectra of carbonaceous chondrites i implications for remote characterization of dark primitive asteroids targeted by Sample Return Missions
Monthly Notices of the Royal Astronomical Society, 2014Co-Authors: Josep M Trigorodriguez, Zita Martins, J Llorca, A S Rivkin, S Fornasier, I Belskaya, C E Moyanocambero, M A Barucci, Elisabetta Dotto, J M MadiedoAbstract:We analyse here a wide Sample of carbonaceous chondrites from historic falls (e.g. Allende, Cold Bokkeveld, Kainsaz, Leoville, Murchison, Murray, Orgueil and Tagish Lake) and from NASA Antarctic collection. With the analysis of these meteorites we want to get new clues on the role of aqueous alteration in promoting the reflectance spectra diversity evidenced in the most primitive chondrite groups. The selected meteorite specimens are a Sample large enough to exemplify how laboratory reflectance spectra of rare groups of carbonaceous chondrites exhibit distinctive features that can be used to remotely characterize the spectra of primitive asteroids. Our spectra cover the full electromagnetic spectrum from 0.2 to 25µ mb y using two spectrometers. First one is an ultraviolet (UV)–near-infrared (NIR) spectrometer that covers the 0.2–2µm window, while the second one is an attenuated total reflectance infrared spectrometer covering the 2–25µm window. In particular, laboratory analyses in the UV–NIR window allow obtaining absolute reflectance by using standardized measurement procedures. We obtained reflectance spectra of specimens belonging to the CI, CM, CV, CR, CO, CK, CH, R and CB groups of carbonaceous chondrites plus some ungrouped ones, and it allows identifying characteristic features and bands for each class, plus getting clues on the influence of parent body aqueous alteration. These laboratory spectra can be compared with the remote spectra of asteroids, but the effects of terrestrial alteration forming (oxy)hydroxides need to be considered.
J M Madiedo - One of the best experts on this subject based on the ideXlab platform.
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uv to far ir reflectance spectra of carbonaceous chondrites i implications for remote characterization of dark primitive asteroids targeted by Sample Return Missions
Monthly Notices of the Royal Astronomical Society, 2014Co-Authors: Josep M Trigorodriguez, Zita Martins, J Llorca, A S Rivkin, S Fornasier, I Belskaya, C E Moyanocambero, M A Barucci, Elisabetta Dotto, J M MadiedoAbstract:We analyse here a wide Sample of carbonaceous chondrites from historic falls (e.g. Allende, Cold Bokkeveld, Kainsaz, Leoville, Murchison, Murray, Orgueil and Tagish Lake) and from NASA Antarctic collection. With the analysis of these meteorites we want to get new clues on the role of aqueous alteration in promoting the reflectance spectra diversity evidenced in the most primitive chondrite groups. The selected meteorite specimens are a Sample large enough to exemplify how laboratory reflectance spectra of rare groups of carbonaceous chondrites exhibit distinctive features that can be used to remotely characterize the spectra of primitive asteroids. Our spectra cover the full electromagnetic spectrum from 0.2 to 25µ mb y using two spectrometers. First one is an ultraviolet (UV)–near-infrared (NIR) spectrometer that covers the 0.2–2µm window, while the second one is an attenuated total reflectance infrared spectrometer covering the 2–25µm window. In particular, laboratory analyses in the UV–NIR window allow obtaining absolute reflectance by using standardized measurement procedures. We obtained reflectance spectra of specimens belonging to the CI, CM, CV, CR, CO, CK, CH, R and CB groups of carbonaceous chondrites plus some ungrouped ones, and it allows identifying characteristic features and bands for each class, plus getting clues on the influence of parent body aqueous alteration. These laboratory spectra can be compared with the remote spectra of asteroids, but the effects of terrestrial alteration forming (oxy)hydroxides need to be considered.
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ir reflectance spectra of antarctic carbonaceous chondrites to better characterize the surfaces of asteroids targeted by Sample Return Missions
LPI, 2012Co-Authors: Josep M Trigorodriguez, J Llorca, J M Madiedo, J Alonsoazcarate, A S Rivkin, S Fornasier, I Belskaya, R P Binzel, C E Moyanocambero, J DerghamAbstract:CHARACTERIZE THE SURFACES OF ASTEROIDS TARGETTED BY Sample Return Missions. J.M.Trigo-Rodriguez, J.Llorca, J.M. Madiedo , J. Alonso-Azcarate, A. S. Rivkin, S. Fornasier, I. Belskaya, R. Binzel, C.E. Moyano-Cambero, J. Dergham, and J. Cortes. 1 Institute of Space Sciences (CSIC-IEEC). Campus UAB, Faculty Sciences, C5-p2. Bellaterra, Spain. 2 Institut de Tecniques Energetiques i Centre de Recerca en Nanoenginyeria. Universitat Politecnica de Catalunya, Diagonal 647, ETSEIB. Barcelona, Spain. 3 Facultad de Ciencias Experimentales, Universidad de Huelva, Spain 4 Universidad de Castilla-La Mancha, Campus Fabrica de Armas, 45071 Toledo, Spain. John Hopkins University Applied Physics Laboratory, Laurel, MD, USA. 6 LESIA, Observatoire de Paris, 5 Place Jules Janssen, 92195 Meudon, France. Department of Earth, Atmospheric, and Planetary Sciences, Massachuseeetts Institute of Technology, Cambridge, MA, USA.
Josep M Trigorodriguez - One of the best experts on this subject based on the ideXlab platform.
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uv to far ir reflectance spectra of carbonaceous chondrites i implications for remote characterization of dark primitive asteroids targeted by Sample Return Missions
Monthly Notices of the Royal Astronomical Society, 2014Co-Authors: Josep M Trigorodriguez, Zita Martins, J Llorca, A S Rivkin, S Fornasier, I Belskaya, C E Moyanocambero, M A Barucci, Elisabetta Dotto, J M MadiedoAbstract:We analyse here a wide Sample of carbonaceous chondrites from historic falls (e.g. Allende, Cold Bokkeveld, Kainsaz, Leoville, Murchison, Murray, Orgueil and Tagish Lake) and from NASA Antarctic collection. With the analysis of these meteorites we want to get new clues on the role of aqueous alteration in promoting the reflectance spectra diversity evidenced in the most primitive chondrite groups. The selected meteorite specimens are a Sample large enough to exemplify how laboratory reflectance spectra of rare groups of carbonaceous chondrites exhibit distinctive features that can be used to remotely characterize the spectra of primitive asteroids. Our spectra cover the full electromagnetic spectrum from 0.2 to 25µ mb y using two spectrometers. First one is an ultraviolet (UV)–near-infrared (NIR) spectrometer that covers the 0.2–2µm window, while the second one is an attenuated total reflectance infrared spectrometer covering the 2–25µm window. In particular, laboratory analyses in the UV–NIR window allow obtaining absolute reflectance by using standardized measurement procedures. We obtained reflectance spectra of specimens belonging to the CI, CM, CV, CR, CO, CK, CH, R and CB groups of carbonaceous chondrites plus some ungrouped ones, and it allows identifying characteristic features and bands for each class, plus getting clues on the influence of parent body aqueous alteration. These laboratory spectra can be compared with the remote spectra of asteroids, but the effects of terrestrial alteration forming (oxy)hydroxides need to be considered.
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ir reflectance spectra of antarctic carbonaceous chondrites to better characterize the surfaces of asteroids targeted by Sample Return Missions
LPI, 2012Co-Authors: Josep M Trigorodriguez, J Llorca, J M Madiedo, J Alonsoazcarate, A S Rivkin, S Fornasier, I Belskaya, R P Binzel, C E Moyanocambero, J DerghamAbstract:CHARACTERIZE THE SURFACES OF ASTEROIDS TARGETTED BY Sample Return Missions. J.M.Trigo-Rodriguez, J.Llorca, J.M. Madiedo , J. Alonso-Azcarate, A. S. Rivkin, S. Fornasier, I. Belskaya, R. Binzel, C.E. Moyano-Cambero, J. Dergham, and J. Cortes. 1 Institute of Space Sciences (CSIC-IEEC). Campus UAB, Faculty Sciences, C5-p2. Bellaterra, Spain. 2 Institut de Tecniques Energetiques i Centre de Recerca en Nanoenginyeria. Universitat Politecnica de Catalunya, Diagonal 647, ETSEIB. Barcelona, Spain. 3 Facultad de Ciencias Experimentales, Universidad de Huelva, Spain 4 Universidad de Castilla-La Mancha, Campus Fabrica de Armas, 45071 Toledo, Spain. John Hopkins University Applied Physics Laboratory, Laurel, MD, USA. 6 LESIA, Observatoire de Paris, 5 Place Jules Janssen, 92195 Meudon, France. Department of Earth, Atmospheric, and Planetary Sciences, Massachuseeetts Institute of Technology, Cambridge, MA, USA.
Hikaru Yabuta - One of the best experts on this subject based on the ideXlab platform.
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Organic Matter in the Solar System—Implications for Future on-Site and Sample Return Missions
Space Science Reviews, 2020Co-Authors: Zita Martins, Queenie Hoi Shan Chan, Lydie Bonal, Ashley King, Hikaru YabutaAbstract:Solar system bodies like comets, asteroids, meteorites and dust particles contain organic matter with different abundances, structures and chemical composition. This chapter compares the similarities and differences of the organic composition in these planetary bodies. Furthermore, these links are explored in the context of detecting the most pristine organic material, either by on-site analysis or Sample Return Missions. Finally, we discuss the targets of potential future Sample Return Missions, as well as the contamination controls that should be in place in order to successfully study pristine organic matter.
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organic matter in the solar system implications for future on site and Sample Return Missions
Space Science Reviews, 2020Co-Authors: Zita Martins, Queenie Hoi Shan Chan, Lydie Bonal, A J King, Hikaru YabutaAbstract:Solar system bodies like comets, asteroids, meteorites and dust particles contain organic matter with different abundances, structures and chemical composition. This chapter compares the similarities and differences of the organic composition in these planetary bodies. Furthermore, these links are explored in the context of detecting the most pristine organic material, either by on-site analysis or Sample Return Missions. Finally, we discuss the targets of potential future Sample Return Missions, as well as the contamination controls that should be in place in order to successfully study pristine organic matter.
Shengying Zhu - One of the best experts on this subject based on the ideXlab platform.
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recent development of autonomous gnc technologies for small celestial body descent and landing
Progress in Aerospace Sciences, 2019Co-Authors: Pingyuan Cui, Shengying ZhuAbstract:Abstract As small celestial body exploration advances, higher requirements with regard to system safety and landing precision are proposed for future landing and Sample Return Missions. However, due to limited prior information about the target, the complex dynamics environment, and significant time-delay, performing a descent and landing on the small body surface is challenging. Among all the techniques required for achieving a safe landing, onboard guidance, navigation, and control (GNC) is of paramount importance in determining mission success. In this paper, a systematic survey of the autonomous GNC technologies for descent and landing on small bodies is carried out. First, based on an analysis of the technical challenges in the process, an overview of typical small body landing and Sample Return Missions is given. Then, an elaboration of the state-of-the-art GNC technologies is presented. Specifically, autonomous navigation methods in unknown environments with highly-nonlinear dynamics are introduced. Descent guidance and control algorithms that take into account landing performance optimization and system robustness against model uncertainties are discussed. Touchdown dynamics and control methods proposed for precise and safe surface contact under weak gravity are analyzed. And safe strategies for onboard detected emergencies such as collision threats and system malfunctions are explained. Besides the prevalent methods, innovative techniques with respect to observability-based optimization, edge curve matching, online landing site selection, collision probability-based hazard avoidance, and trajectory curvature guidance proposed for improving system safety and landing performance are elucidated. At last, based on the growing system autonomy and operational complexity demands, a prospect of future research directions for small body GNC technologies is given.
