Results 21 to 30 of about 4,318,169 (286)

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

Accessibility of the resources of near Earth space using multi-impulse transfers [PDF]

, 2010
Most future concepts for exploration and exploitation of space require a large initial mass in low Earth orbit. Delivering this mass requires overcoming Earth's natural gravity well, which imposes a distinct obstacle to space-faring.
Sanchez, J.P., McInnes, Colin R.
core   +3 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

Adventures in Near-Earth Object Exploration [PDF]

Science, 2006
Asteroids, because of the hazard they pose to Earth, are compelling targets for robotic and human space exploration. Yet because of their exotic low-gravity environment, simply landing on an asteroid appears to be much more challenging than we had appreciated 5 or 10 years ago.
openaire   +2 more sources

Klet Observatory – European Contribution to Detecting and Tracking of Near Earth Objects

Geoinformatics FCE CTU, 2012
Near Earth Object (NEO) research is an expanding field of astronomy. Is is important for solar system science and also for protecting human society from asteroid and comet hazard.  A near-Earth object (NEO) can be defined as an asteroid or comet that has
Milos Tichy
doaj   +1 more source

Identifying near-Earth object families

Icarus, 2005
The study of asteroid families has provided tremendous insight into the forces that sculpted the main belt and continue to drive the collisional and dynamical evolution of asteroids. The identification of asteroid families within the NEO population could provide a similar boon to studies of their formation and interiors.
Fu, Hai, Jedicke, Robert, Durda, Daniel D., Fevig, Ronald, Scotti, James V.   +4 more
openaire   +2 more sources