Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Testing Relativity with Orbiting Oscillators   Clock-comparison experiments using a satellite platform can give Planck-scale
sensitivity to many parameters for Lorentz and CPT violation that are difficult
to measure on Earth. A discussion of the theoretical framework for such tests
is given, with emphasis on comparisons of output frequencies of atomic clocks
and of electromagnetic cavity oscillators.

15
The categories of this paper are: nucl-ex
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
1
The categories of this paper are: cs
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
13
The categories of this paper are: quant-ph
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat
2
The categories of this paper are: math
4
The categories of this paper are: cond-mat
9
The categories of this paper are: nlin