Results 31 to 40 of about 486,437 (201)

Asteroid Deflection by Leveraging Rotational Self-Energy [PDF]

Journal of Spacecraft and Rockets, 2021
A novel concept for the deflection of rotating asteroids is presented, based on the conversion of the asteroid rotational kinetic energy into translational kinetic energy. Such conversion is achieved using an orbital siphon, a tether-connected chain of masses, arranged vertically from the asteroid surface, which exploits the rotation of the asteroid ...
Viale, Andrea, McInnes, Colin, Bailet, Gilles, Ceriotti, Matteo   +3 more
openaire   +1 more source

Collisional and Rotational Disruption of Asteroids [PDF]

Advanced Science Letters, 2011
Asteroids are leftover pieces from the era of planet formation that help us understand conditions in the early Solar System. Unlike larger planetary bodies that were subject to global thermal modification during and subsequent to their formation, these small bodies have kept at least some unmodified primordial material from the solar nebula.
Walsh, K., Michel, P., Richardson, D.
openaire   +3 more sources

Preliminary refinement of rotation parameters of asteroids based on photogrammetric processing of on-orbit remote sensing images [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
In recent years, asteroid exploration has become an important research direction in the field of deep space exploration. The weak gravitational environment of asteroids, as well as their complex topographic, geomorphic, and dynamic characteristics, pose ...
Z. Peng, Z. Peng, X. Geng, X. Geng, J. Zhang, J. Zhang, Y. Wang, Y. Wang   +7 more
doaj   +1 more source

The Alinement of Asteroid Rotation [PDF]

International Astronomical Union Colloquium, 1971
Data have been accumulating since the beginning of this century that indicate that most, if not all, large asteroids have periodic lightcurves. The variations that are seen have periods of the order of several hours and can be understood as being caused by bodily rotation, accompanied by changes in shape and/or surface properties. Because corresponding
openaire   +1 more source

Asteroid Photometric Phase Functions From Bayesian Lightcurve Inversion

Frontiers in Astronomy and Space Sciences, 2022
Photometry is an important tool for characterizing the physical properties of asteroids. An asteroid’s photometric lightcurve and phase curve refer to the variation of the asteroid’s disk-integrated brightness in time and in phase angle (the Sun-asteroid-
Karri Muinonen, Karri Muinonen, Elizaveta Uvarova, Julia Martikainen, Antti Penttilä, Alberto Cellino, Xiaobin Wang, Xiaobin Wang   +7 more
doaj   +1 more source

THE ASTEROIDS' ROTATION PARAMETERS DETERMINATION USING PHOTOMETRICAL DATA

Odessa Astronomical Publications, 2017
Presented a new method of determination of the asteroid rotation parameters.
N. R. Burlak, T. A. Golubovskaya, N. L. Koshkin, S. L. Strahova   +3 more
doaj   +1 more source

Magnetic field measurements during the ROSETTA flyby at asteroid (21) Lutetia [PDF]

, 2011
On July 10, 2010, the ROSETTA spacecraft performed a flyby at asteroid (21) Lutetia at a solar distance of 2.72 AU. The spacecraftâ  asteroid distance at closest approach was 3120 km.
Glassmeier, K.H., J. Müller, Auster, H., Richter, I., Glassmeier, K., Auster, H. U., Mueller, J., Motschmann, U., H.U. Auster, McKenna-Lawlor, S., C.M. Carr, S. McKenna-Lawlor, Carr, C., Carr, C.M., U. Motschmann, I. Richter, C. Koenders, Koenders, C., Müller, J., K.H. Glassmeier   +19 more
core   +1 more source

The Apollo Group Asteroid 2008 OS9: Discovery, Orbit, Rotation and the Yarkovsky/YORP Effects

Open Astronomy, 2010
A project for astrometric and photometric observations of asteroids at the Baldone Observatory is described. One of the most important results of the project is the discovery of 2008 OS9, a 600 meter asteroid of the NEO Apollo group.
Černis K., Eglitis I., Wlodarczyk I., Zdanavičius J., Zdanavičius K.   +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   +1 more
core   +3 more sources

On the Particular Dynamics of Rubble-Pile Asteroid Rotation Following Projectile Impact on the Surface During Planetary Approach

Mathematics
The main motivation of this research is the semi-analytical exploration of the dynamics of an asteroid that is attacked while approaching a planet (with an inelastic collision of the projectile normally to the surface of the asteroid occurring just ...
Sergey Ershkov
doaj   +1 more source