Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lightcurve and rotation period determination for asteroid 3634 Iwan   Lightcurve of the asteroid 3634 Iwan observed at the Bulgarian National
Astronomical Observatory Rozhen in 2017 is presented. The asteroid was observed
only one night, on 22 March 2017 accidentally in the field of view in which our
target for shape modeling asteroid 289 Nenetta was positioned. The Asteroid
Lightcurve Database (LCDB; Warner et al. 2009) did not contain any previously
reported results for 3634 Iwan. If we accept that the ligtcurve of the asteroid
is typical with two maxima and minima, a single night observations covers the
whole rotational cycle. The lightcurve plotted by MPO Canopus provides a best
fit to synodic period of $4.72\pm 0.06$ h with amplitude of $0.15\pm 0.02$ mag.
Our assessment is that for the uniqueness of the period solution we need longer
observational span which will reveal the number of extrema of the lightcurve
and confirm the quality code U=3.

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The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
2
The categories of this paper are: math
32
The categories of this paper are: atom-ph
9
The categories of this paper are: nlin
23
The categories of this paper are: solv-int
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph