Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Overview of KAGRA: Calibration, detector characterization, physical
  environmental monitors, and the geophysics interferometer   KAGRA is a newly built gravitational wave observatory, a laser interferometer
with a 3 km arm length, located in Kamioka, Gifu, Japan. In this series of
articles, we present an overview of the baseline KAGRA, for which we finished
installing the designed configuration in 2019. This article describes the
method of calibration (CAL) used for reconstructing gravitational wave signals
from the detector outputs, as well as the characterization of the detector
(DET). We also review the physical environmental monitors (PEM) system and the
geophysics interferometer (GIF). Both are used for characterizing and
evaluating the data quality of the gravitational wave channel. They play
important roles in utilizing the detector output for gravitational wave
searches. These characterization investigations will be even more important in
the near future, once gravitational wave detection has been achieved, and in
using KAGRA in the gravitational wave astronomy era.

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The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
2
The categories of this paper are: math
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
12
The categories of this paper are: nucl-th
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The categories of this paper are: acc-phys
31
The categories of this paper are: ao-sci
18
The categories of this paper are: econ
33
The categories of this paper are: plasm-ph
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
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The categories of this paper are: eess
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The categories of this paper are: hep-th