Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Fresnel-Fizeau effect and the atmospheric time delay in geodetic
  VLBI   The Fresnel-Fizeau effect is a special relativistic effect that makes the
speed of light dependent on the velocity of a transparent, moving medium. We
present a theoretical formalism for discussing propagation of electromagnetic
signals through the moving Earth atmosphere with taking into account the
Fresnel-Fizeau effect. It provides the rigorous relativistic derivation of the
atmospheric time delay equation in the consensus model of geodetic VLBI
observations which was never published before. The paper confirms the
atmospheric time delay of the consensus VLBI model used in IERS Standards, and
provides a firm theoretical basis for calculation of even more subtle
relativistic corrections.

1
The categories of this paper are: cs
32
The categories of this paper are: atom-ph
29
The categories of this paper are: funct-an
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int