Results 21 to 30 of about 4,153,032 (280)

Optimal trajectory design for interception and deflection of Near Earth Objects [PDF]

, 2010
Many asteroids and comets orbit the inner solar system; among them Near Earth Objects (NEOs) are those celestial bodies for which the orbit lies close, and sometimes crosses, the Earth's orbit.
Colombo, Camilla, Vasile, Massimiliano, Radice, Gianmarco   +2 more
core   +3 more sources

Validation of the Survey Simulator Tool for the NEO Surveyor Mission Using NEOWISE Data

The Planetary Science Journal, 2023
The Near-Earth Object Surveyor (NEO Surveyor) mission has a requirement to find two-thirds of the potentially hazardous asteroids larger than 140 m in size. In order to determine the mission’s expected progress toward this goal during design and testing,
Joseph R. Masiero, Dar W. Dahlen, Amy K. Mainzer, William F. Bottke, Jennifer C. Bragg, James. M. Bauer, Tommy Grav   +6 more
doaj   +1 more source

Infrared Light Curves of Near-Earth Objects [PDF]

The Astrophysical Journal Supplement Series, 2018
Abstract We present light curves and derive periods and amplitudes for a subset of 38 near-Earth objects (NEOs) observed at 4.5 μm with the IRAC camera on the the Spitzer Space Telescope, many of them having no previously reported rotation periods. This subset was chosen from about 1800 IRAC NEO observations as having obvious periodicity
Hora, J.L., Siraj, A., Mommert, M., McNeill, A., Trilling, D., Gustafsson, A., Smith, H. A., Fazio, G.G., Chesley, S., Emery, J.P., Harris, Alan, Mueller, M.   +11 more
openaire   +5 more sources

Unconfirmed Near-Earth Objects [PDF]

The Astronomical Journal, 2018
Abstract We studied the Near-Earth Asteroid (NEA) candidates posted on the Minor Planet Center’s Near-Earth Object Confirmation Page (NEOCP) between years 2013 and 2016. Out of more than 17000 NEA candidates, while the majority became either new discoveries or were associated with previously known objects, about 11% were unable to be ...
Peter Vereš, Matthew J. Payne, Matthew J. Holman, Davide Farnocchia, Gareth V. Williams, Sonia Keys, Ian Boardman   +6 more
openaire   +2 more sources

Geoinformation modeling of near-Earth space: current tasks and future prospects [PDF]

E3S Web of Conferences, 2021
The history of space exploration and current near-Earth space objects population are described in this paper. Moreover, the necessity of GIS technologies application to solve space industry tasks and the development of corresponding GIS are explained ...
Orlov P.Yu., Boyarchuk M.A., Zhurkin I.G.   +2 more
doaj   +1 more source

A Single Ejection Model of the DART/Dimorphos Debris Trail

The Astrophysical Journal Letters, 2023
The collision of the NASA DART spacecraft with asteroid Dimorphos resulted in the formation of a distinctive and long-lived debris trail, formed by the action of solar radiation pressure on ejected particles.
Yoonyoung Kim, David Jewitt
doaj   +1 more source

Measuring the Orbit Drift of Near-Earth Asteroids by the Yarkovsky Effect

The Astrophysical Journal, 2023
The Yarkovsky effect causes the semimajor axis drift of near-Earth asteroids. The drift can be detected by a precise orbit determination process. Using the proposed algorithm, 2233 out of 27,078 near-Earth asteroids are chosen as the initial candidates ...
Xin Liu, Xi-Yun Hou, Zhi-Tao Yang, Qing-Bo Gan, Yao Zhang   +4 more
doaj   +1 more source

Assessment on the feasibility of future shepherding of asteroid resources [PDF]

, 2012
Most plausible futures for space exploration and exploitation require a large mass in Earth orbit. Delivering this mass requires overcoming the Earth’s natural gravity well, which imposes a distinct obstacle to any future space venture.
Sanchez Cuartielles, Joan-Pau, McInnes, Colin, Sanchez, J.P., McInnes, C.R.   +3 more
core   +4 more sources

Near-Earth asteroid resource accessibility and future capture mission opportunities [PDF]

, 2012
In-Situ Resource Utilization (ISRU) has always been suggested for ambitious space endeavours; and asteroids and comets in particular are generally agreed to be ideal sources, both in terms of its accessibility and wealth.
Sanchez Cuartielles, Joan-Pau, Garcia Yarnoz, Daniel, McInnes, Colin   +2 more
core   +3 more sources

Neuropsychological and Educational Outcomes in Shwachman–Diamond Syndrome—A Report From the North American Shwachman–Diamond Syndrome Registry

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Shwachman–Diamond syndrome (SDS) is a rare autosomal recessive ribosomopathy characterized by bone marrow failure and multisystem involvement, with emerging evidence of associated neurocognitive impairment. Methods We conducted a retrospective study of 240 individuals with biallelic Shwachman–Bodian–Diamond syndrome (SBDS) mutations
Jane Koo, Melissa Gerstle, Leah Cheng, Richard Cooper, Katherine Coyne, Claire Dusa, Naomi E. Joffe, Diana Schwarz, Sarah Steltz, Akiko Shimamura, Kasiani C. Myers, Thea Quinton   +11 more
wiley   +1 more source