Availability and delta-v requirements for delivering water extracted from near-Earth objects to cis-lunar space

Jedicke, Robert; Sercel, Joel C.; Gillis-Davis, J. J.; Morenz, Karen J.; Gertsch, Leslie S.

doi:10.1016/j.pss.2018.04.005

Cited by 21 publications

(9 citation statements)

References 63 publications

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“…Thus, all our evidence suggests that 2020 CD 3 is of spectral type S or V. Although little is known of the color distribution of meter-class asteroids, our result is consistent with the observed taxonomic distribution of NEOs with diameters <200 meters where S-class objects dominate (Binzel et al 2019). Furthermore, it is consistent with extrapolations of the asteroid taxonomic and orbital element distribution to small NEOs on Earth-like orbits, the minimoon source population, which suggest that for H ∼ 24.5, corresponding to S-type asteroids ∼ 40 m diameter, S-types make up about 40% of the population (Jedicke et al 2018b).…”

Section: Physical Characterisationsupporting

confidence: 90%

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD₃

Fedorets

Micheli

Jedicke

et al. 2020

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We report on our detailed characterisation of Earth's second known temporary natural satellite, or minimoon, asteroid 2020 CD 3. An artificial origin can be ruled out based on its area-to-mass ratio and broad-band photometry, which suggest that it is a silicate asteroid belonging to the S or V complex in asteroid taxonomy. The discovery of 2020 CD 3 allows for the first time a comparison between known minimoons and theoretical models of their expected physical and dynamical properties. The estimated diameter of 1.2 +0.4 −0.2 meters and geocentric capture approximately a decade after the first known minimoon, 2006 RH 120 , are in agreement with theoretical predictions. The capture duration of 2020 CD 3 of at least 2.7 years is unexpectedly long compared to the simulation average, but it is in agreement with simulated minimoons that have close lunar encounters, providing additional support for the orbital models. 2020 CD 3 's atypical rotation period, significantly longer than theoretical predictions, suggests that our understanding of meter-scale asteroids needs revision. More discoveries and a detailed characterisation of the population can be expected with the forthcoming Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST).

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Section: Physical Characterisationsupporting

confidence: 90%

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD₃

Fedorets

Micheli

Jedicke

et al. 2020

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“…Observations from spacecraft are mainly used to complement theories and findings deduced from ground‐based asteroid data. There is evidence that asteroid impacts could have brought a significant amount of water to the young terrestrial planets [37] . The meteorites collected on Earth combined with the samples returned from the Hayabusa2 and OSIRIS‐REx missions will deepen our understanding in the near future [38] .…”

Section: Water Supply Chain In Spacementioning

confidence: 99%

Continuous‐Flow Extraction of Adjacent Metals—A Disruptive Economic Window for In Situ Resource Utilization of Asteroids?

et al. 2020

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For the in situ resource utilization (ISRU) of asteroids, the cost–mass conundrum needs to be solved, and technologies may need to be conceptualised from first principals. By using this approach, this Review seeks to illustrate how chemical process intensification can help with the development of disruptive technologies and business matters, how this might influence space‐industry start‐ups, and even industrial transformations on Earth. The disruptive technology considered is continuous microflow solvent extraction and, as another disruptive element therein, the use of ionic liquids. The space business considered is asteroid mining, as it is probably the most challenging resource site, and the focus is on its last step: the purification of adjacent metals (cobalt versus nickel). The key economic barrier is defined as the reduction in the amount of water used in the asteroid mining process. This Review suggests a pathway toward water savings up to the technological limit of the best Earth‐based processes and their physical limits.

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“…Beobachtungen von Raumschiffen und ‐sonden werden in erster Linie genutzt, um Theorien und Erkenntnisse von Asteroiden zu vervollständigen, die zunächst von der Erde aus erarbeitet wurden. Es gibt Hinweise darauf, dass Asteroiden eine signifikante Menge von Wasser auf neu entstandene terrestrische Planten gebracht haben könnten [37] . Auf der Erde gesammelte Meteoriten und die von Hayabusa2‐ und OSIRIS‐Rex‐Missionen gesammelten Proben werden hierzu in der Zukunft genauere Antworten geben können [38] .…”

Section: Wasserversorgungsketten Im Weltallunclassified

Kontinuierliche Extraktion benachbarter Metalle im Durchstrombetrieb – ein disruptiver ökonomischer Ansatz zur In‐situ‐Rohstoffgewinnung auf Asteroiden?

Hessel¹,

Tran

Orandi³

et al. 2020

Angewandte Chemie

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Um eine In‐situ‐Rohstoffgewinnung (ISRU) auf Asteroiden zu realisieren, muss zunächst das Gewichts/Kosten‐Problem gelöst werden. Dafür wird es nötig sein, von Grund auf neue Technologien zu entwickeln. Basierend auf diesem Ansatz diskutiert dieser Aufsatz, inwiefern chemische Prozessintensivierung bei der Entwicklung disruptiver Technologien und Geschäftsmodelle im Bereich der ISRU helfen kann und inwiefern hiervon auch bestehende “Erd”‐Industrien und Raumfahrt‐Start‐Ups profitieren können. Die betrachtete disruptive Technologie ist die kontinuierliche Lösungsmittel‐basierte Mikroflow‐Extraktion, und als weiteres disruptives Element wird die Verwendung ionischer Flüssigkeiten diskutiert. Bei der untersuchten Weltraumtechnologie handelt es sich um den zukünftigen Asteroidenbergbau, und der Fokus liegt auf dem finalen Schritt: der Aufreinigung der abgebauten und ausgelaugten Metallmischung. Der ökonomische Schlüsselschritt wird definiert als die Reduktion der Menge des beim Asteroidenbergbau verwendeten Wassers. Dieser Aufsatz diskutiert die Effizienz und den Umfang möglicher Wege zur Wassereinsparung bis hin zum technologischen Limit der aktuell effizientesten Erd‐basierten Prozessintensivierungen in diesem Bereich und deren physikalische Limitierungen.

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Availability and delta-v requirements for delivering water extracted from near-Earth objects to cis-lunar space

Cited by 21 publications

References 63 publications

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD₃

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD₃

Continuous‐Flow Extraction of Adjacent Metals—A Disruptive Economic Window for In Situ Resource Utilization of Asteroids?

Kontinuierliche Extraktion benachbarter Metalle im Durchstrombetrieb – ein disruptiver ökonomischer Ansatz zur In‐situ‐Rohstoffgewinnung auf Asteroiden?

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Availability and delta-v requirements for delivering water extracted from near-Earth objects to cis-lunar space

Cited by 21 publications

References 63 publications

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD3

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD3

Continuous‐Flow Extraction of Adjacent Metals—A Disruptive Economic Window for In Situ Resource Utilization of Asteroids?

Kontinuierliche Extraktion benachbarter Metalle im Durchstrombetrieb – ein disruptiver ökonomischer Ansatz zur In‐situ‐Rohstoffgewinnung auf Asteroiden?

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Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD₃

Establishing Earth’s Minimoon Population through Characterization of Asteroid 2020 CD₃