Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Optimal impact strategies for asteroid deflection   This paper presents an analysis of optimal impact strategies to deflect
potentially dangerous asteroids. To compute the increase in the minimum orbit
intersection distance of the asteroid due to an impact with a spacecraft,
simple analytical formulas are derived from proximal motion equations. The
proposed analytical formulation allows for an analysis of the optimal direction
of the deviating impulse transferred to the asteroid. This ideal optimal
direction cannot be achieved for every asteroid at any time; therefore, an
analysis of the optimal launch opportunities for deviating a number of selected
asteroids was performed through the use of a global optimization procedure. The
results in this paper demonstrate that the proximal motion formulation has very
good accuracy in predicting the actual deviation and can be used with any
deviation method because it has general validity. Furthermore, the
characterization of optimal launch opportunities shows that a significant
deviation can be obtained even with a small spacecraft.

22
The categories of this paper are: chao-dyn
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
14
The categories of this paper are: math-ph
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
7
The categories of this paper are: hep-th
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
21
The categories of this paper are: adap-org
15
The categories of this paper are: nucl-ex