Results 71 to 80 of about 447,866 (197)

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

The Planetary Science Journal
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 create
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   +11 more
doaj   +1 more source

Precovery of near-Earth asteroids by a citizen-science project of the Spanish Virtual Observatory

, 2013
This article describes a citizen-science project conducted by the Spanish Virtual Observatory (SVO) to improve the orbits of near-Earth asteroids (NEAs) using data from astronomical archives.
Carry, B., Pulido, R., Rodrigo, C., Solano, E.   +3 more
core   +3 more sources

Internal structure of Near-Earth Objects

Comptes Rendus. Physique, 2005
For the purposes of mitigation, the internal structure of near-Earth objects (NEOs) remains one of the most important but least understood parameters. From a science point of view, the internal structure is equally intriguing. Knowledge of the internal structure can reveal the collisional history, and in the case of comets, may also reveal the ...
Binzel, Richard P., Kofman, Wlodek
openaire   +2 more sources

Placing the Near-Earth Object Impact Probability in Context

The Planetary Science Journal
Near-Earth objects (NEOs) have the potential to cause extensive damage and loss of life on Earth. Advancements in NEO discovery, trajectory prediction, and deflection technology indicate that an impact could be prevented, with sufficient warning time. We
C. R. Nugent, K. P. Andersen, James M. Bauer, C. T. Jensen, L. K. Kristiansen, C. P. Hansen, M. M. Nielsen, C. F. Vestergård   +7 more
doaj   +1 more source

Development of Radar and Optical Tracking of Near-Earth Asteroids at the University of Tasmania

Remote Sensing
We detail the use of the University of Tasmania’s (UTAS) optical and radio telescopes to conduct observations of near-Earth asteroids from 2021 to 2024.
Oliver James White, Guifré Molera Calvés, Shinji Horiuchi, Phil Edwards, Ed Kruzins, Jon Giorgini, Nick Stacy, Andrew Cole, Chris Phillips, Jamie Stevens, Lance Benner, Edwin Peters   +11 more
doaj   +1 more source

The Population of Small Near-Earth Objects: Composition, Source Regions, and Rotational Properties

The Planetary Science Journal
The study of small (
Juan A. Sanchez, Vishnu Reddy, Audrey Thirouin, William F. Bottke, Theodore Kareta, Mario De Florio, Benjamin N. L. Sharkey, Adam Battle, David C. Cantillo, Neil Pearson   +9 more
doaj   +1 more source

Near-Earth Object Observations using Synthetic Tracking

Publications of the Astronomical Society of the Pacific
Abstract Synthetic tracking (ST) has emerged as a potent technique for observing fast-moving near-Earth objects (NEOs), offering enhanced detection sensitivity and astrometric accuracy by avoiding trailing loss. This approach also empowers small telescopes to use prolonged integration times to achieve high sensitivity for NEO surveys and
Chengxing Zhai, Michael Shao, Navtej Saini, Philip Choi, Nez Evans, Russell Trahan, Kutay Nazli, Max Zhan   +7 more
openaire   +4 more sources

Near-infrared Spectral Homogeneity of the Didymos System Before and After the DART Impact

The Planetary Science Journal
We spectroscopically characterized the Didymos system, target of the Double Asteroid Redirection Test (DART)/Light Italian Cubesat for Imaging of Asteroids (LICIACube) space mission, close in time to the DART impact event, during six nights between 2022 ...
Simone Ieva, E. Mazzotta Epifani, E. Dotto, V. Petropoulou, J. D. P. Deshapriya, P. H. Hasselmann, G. Poggiali, D. Perna, M. Dall’Ora, A. Lucchetti, M. Pajola, S. L. Ivanovski, A. Rossi, J. R. Brucato, P. Palumbo, V. Della Corte, A. Zinzi, C. A. Thomas, J. de León, T. Kareta, N. Moskovitz, N. L. Chabot, A. S. Rivkin, M. Amoroso, I. Bertini, A. Capannolo, S. Caporali, M. Ceresoli, G. Cremonese, I. Gai, L. Gomez-Casajus, E. Gramigna, G. Impresario, R. Lasagni Manghi, M. Lavagna, M. Lombardo, D. Modenini, S. Pirrotta, P. Tortora, F. Tusberti, M. Zannoni, G. Zanotti   +41 more
doaj   +1 more source

Robotic and Human Exploration of Near-Earth Objects [PDF]

, 2011
U.S. President Obama stated on April 15, 2010 that the next goal for human spaceflight will be to send human beings to a near-Earth asteroid by 2025. Given this direction from the White House, NASA has been involved in studying various strategies for ...
Abell, Paul
core   +1 more source

Inconsistencies in Simple Thermal Model Results for Near-Earth Asteroids between Infrared Telescope Facility SpeX and NEOWISE Data

The Planetary Science Journal
Understanding the properties of near-Earth asteroids (NEAs) is key for many aspects of planetary science, particularly planetary defense. Our current knowledge of NEA sizes and regolith properties is heavily dependent on simple thermal models.
Samuel A. Myers, Ellen S. Howell, Christopher Magri, Ronald J. Vervack Jr., Yanga R. Fernández, Mary L. Hinkle, Sean E. Marshall   +6 more
doaj   +1 more source