Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Constructing the astronomical observatory at Tay Nguyen University,
  Vietnam   We are planning to build an observatory that includes a 40 cm optical
telescope at Tay Nguyen University (TNU), Daklak Province, Vietnam. In this
paper, we report the initial activities of our project. First, to prepare for
the scientific exploitation of the observatory, we organized the observational
nights for students at the International Center for Interdisciplinary Science
and Education, Qui Nhon in April 2017 and at the Nha Trang Observatory, Nha
Trang in November 2018. These activities aim to provide students with the
skills of astronomical observations and to create their passion in astronomy
study. Second, we are organizing the annual Exploration Program in Astrophysics
Research (EPAR) at TNU. The goals of EPAR are to promote the teaching and
learning activities at TNU and promoting collaboration between TNU and other
institutes. Finally, we are conducting joint research project between TNU and
Kyoto astronomical observatory of Kyoto university to prepare for the technical
details of the observatory.

10
The categories of this paper are: q-bio
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
11
The categories of this paper are: hep-lat
8
The categories of this paper are: hep-ex
20
The categories of this paper are: acc-phys
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
16
The categories of this paper are: stat
35
The categories of this paper are: mtrl-th
7
The categories of this paper are: hep-th
4
The categories of this paper are: cond-mat
0
The categories of this paper are: hep-ph
19
The categories of this paper are: eess