Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Generating Realistic Two-Line Elements for Notional Space Vehicles and
  Constellations   As space becomes increasingly populated with new satellites and systems,
modeling and simulating existing and future systems becomes more important. The
two-line element set has been a standard format for sharing data about a
satellite's orbit since the 1960s, and well-developed algorithms can predict
the future location of satellites based on this data. In order to simulate
potential future systems, especially when mixed with existing systems, data
must be generated to represent the desired orbits. We present a means to create
two-line element sets with parameters that closely resemble real satellite
behavior, and rely on a novel approach to calculate the mean motion for even
greater accuracy.

29
The categories of this paper are: funct-an
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
10
The categories of this paper are: q-bio
18
The categories of this paper are: econ
36
The categories of this paper are: cmp-lg
22
The categories of this paper are: chao-dyn
11
The categories of this paper are: hep-lat