Meteoroids, Meteors, and the Near-Earth Object Impact Hazard

2008 ◽  
pp. 417-424
Author(s):  
Clark R. Chapman
Keyword(s):  
Earth Object

scholarly journals The Asteroid Rotation Period Survey Using the China Near-Earth Object Survey Telescope (CNEOST)

2020 ◽  
Vol 160 (2) ◽  
pp. 73
Author(s):  
Ting-Shuo Yeh ◽  
Bin Li ◽  
Chan-Kao Chang ◽  
Hai-Bin Zhao ◽  
Jiang-Hui Ji ◽  
...  
Keyword(s):  
Rotation Period ◽  
Earth Object

The Near Earth Object Surveillance Satellite (NEOSSat)

2004 ◽  
Author(s):  
Brad Wallace ◽  
Frank L. Pinkney ◽  
Robert Scott ◽  
Donald Bedard ◽  
Jim Rody ◽  
...  
Keyword(s):  
Earth Object

scholarly journals At the outer limits of the international: Orbital infrastructures and the technopolitics of planetary (in)security

2020 ◽  
Vol 5 (3) ◽  
pp. 294-314
Author(s):  
Columba Peoples ◽  
Tim Stevens
Keyword(s):  
Science Fiction ◽  
International Security ◽  
Outer Space ◽  
Security Analysis ◽  
Earth Observation ◽  
Detection Systems ◽  
Earth Object ◽  
Military Security ◽  
Technical Systems

AbstractAs staples of science fiction, space technologies, much like outer space itself, have often been regarded as being ‘out there’ objects of international security analysis. However, as a growing subset of security scholarship indicates, terrestrial politics and practices are ever more dependent on space technologies and systems. Existing scholarship in ‘astropolitics’ and ‘critical astropolitics’ has tended to concentrate on how such technologies and systems underpin and impact the dynamics of military security, but this article makes the case for wider consideration of ‘orbital infrastructures’ as crucial to conceptions and governance of planetary security in the context of the ‘Anthropocene’. It does so by outlining and analysing in detail Earth Observation (EO) and Near-Earth Object (NEO) detection systems as exemplary cases of technological infrastructures for ‘looking in’ on and ‘looking out’ for forms of planetary insecurity. Drawing on and extending recent theorisations of technopolitics and of Large Technical Systems, we argue that EO and NEO technologies illustrate, in distinct ways, the extent to which orbital infrastructures should be considered not only part of the fabric of contemporary international security but as particularly significant within and even emblematic of the technopolitics of planetary (in)security.

scholarly journals Optimization of Deflection of a Big NEO through Impact with a Small One

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Kaijian Zhu ◽  
Weiping Huang ◽  
Yuncai Wang ◽  
Wei Niu ◽  
Gongyou Wu
Keyword(s):  
Small Body ◽  
Optimization Method ◽  
Optimization Process ◽  
Earth Object

Using a small near-Earth object (NEO) to impact a larger and potentially threatening NEO has been suggested as an effective method to avert a collision with Earth. This paper develops a procedure for analysis of the technique for specific NEOs. First, an optimization method is used to select a proper small body from the database. Some principles of optimality are achieved with the optimization process. Then, the orbit of the small body is changed to guarantee that it flies toward and impacts the big threatening NEO. Kinetic impact by a spacecraft is chosen as the strategy of deflecting the small body. The efficiency of this method is compared with that of a direct kinetic impact to the big NEO by a spacecraft. Finally, a case study is performed for the deflection of the Apophis NEO, and the efficiency of the method is assessed.

Sign in / Sign up

Export Citation Format

Share Document