Výsledky vyhledávání - "John R. Weirich"

Akademický článek

Sensitivity Testing of Stereophotoclinometry for the OSIRIS-REx Mission. I. The Accuracy and Errors of Digital Terrain Modeling

Autor: Eric E. Palmer, John R. Weirich, Robert W. Gaskell, Diane Lambert, Tanner Campbell, Kris Drozd, Olivier S. Barnouin, Michael G. Daly, Kenneth Getzandanner, John N. Kidd Jr., Coralie D. Adam, Dante S. Lauretta

Publikováno v: The Planetary Science Journal, Vol 5, Iss 2, p 46 (2024)

Stereophotoclinometry (SPC) was the prime method of shape modeling for NASA’s OSIRIS-REx mission to asteroid Bennu. Here we describe the extensive testing conducted before launch to certify SPC as NASA Class B flight software, which not only valida

Externí odkaz: https://doaj.org/article/23a4fb30c87d4d4b9be87816d4752944

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Akademický článek

Sensitivity Testing of Stereophotoclinometry for the OSIRIS-REx Mission. II. Effective Observation Geometry for Digital Terrain Modeling

Publikováno v: The Planetary Science Journal, Vol 5, Iss 2, p 47 (2024)

The OSIRIS-REx mission used stereophotoclinometry (SPC) to generate digital terrain models (DTMs) of its target asteroid, Bennu. Here we present a suite of preflight tests conducted to identify the observing geometry and number of images needed to cr

Externí odkaz: https://doaj.org/article/9b554404ea8e4f26b3dcf1f623347be1

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Akademický článek

The Search for Topographic Correlations within the Reiner Gamma Swirl

Autor: John R. Weirich, Deborah L. Domingue, Frank C. Chuang, Amanda A. Sickafoose, Matthew D. Richardson, Eric E. Palmer, Robert W. Gaskell

Publikováno v: The Planetary Science Journal, Vol 4, Iss 11, p 212 (2023)

Lunar swirls have been traditionally considered to be unaffected by topographic changes. Yet, correlations between areas of high albedo and lower elevations are observed in regions of the Mare Ingenii swirl. Here, we apply similar techniques used at

Externí odkaz: https://doaj.org/article/dbb2e9123f64435daaa4b7ac1a7ebd23

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Mapping Lunar Swirls with Machine Learning: The Application of Unsupervised and Supervised Image Classification Algorithms in Reiner Gamma and Mare Ingenii

Autor: Frank C. Chuang, Matthew D. Richardson, John R. Weirich, Amanda A. Sickafoose, Deborah L. Domingue

Publikováno v: The Planetary Science Journal. 3:231

Lunar swirls are recognized as broad, bright albedo features in various regions of the Moon. These features are often separated by dark off-swirl lanes or terminate against the dark background, such as lunar maria. Prior mapping of swirls has been do

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dfb6bbb34c96fc6beab363b0580400cb
https://doi.org/10.3847/psj/ac8f43

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