Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Collision Probability Estimation Algorithm Used in the Space Debris
  Evolutionary Model   An in-depth analysis is performed on the problem that one parameter of the
Cube model can affects the final simulation results of space debris long-term
evolution model, which weakens the representativeness of the space debris
evolution model. We made some improvements and proposed an Improved-Cube
(I-Cube) model. By multiple Monte Carlo simulations, it is indicated that the
I-Cube model offered a more accurate and more reasonable option for collision
probability estimation in the space debris evolution process. The simulation
results of space debris long-term evolution model are no longer sensitive to
the collision probability estimation model parameters, thus improved the
reliability of space debris long-term evolution model.

33
The categories of this paper are: plasm-ph
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th