Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Comparing Dawn, Hubble Space Telescope, and Ground-Based Interpretations
  of (4) Vesta   Observations of asteroid 4 Vesta by NASA's Dawn spacecraft are interesting
because its surface has the largest range of albedo, color and composition of
any other asteroid visited by spacecraft to date. These hemispherical and
rotational variations in surface brightness and composition have been
attributed to impact processes since Vesta's formation. Prior to Dawn's arrival
at Vesta, its surface properties were the focus of intense telescopic
investigations for nearly a hundred years. Ground-based photometric and
spectroscopic observations first revealed these variations followed later by
those using Hubble Space Telescope. Here we compare interpretations of Vesta's
rotation period, pole, albedo, topographic, color, and compositional properties
from ground-based telescopes and HST with those from Dawn. Rotational spectral
variations observed from ground-based studies are also consistent with those
observed by Dawn. While the interpretation of some of these features was
tenuous from past data, the interpretations were reasonable given the
limitations set by spatial resolution and our knowledge of Vesta and HED
meteorites at that time. Our analysis shows that ground-based and HST
observations are critical for our understanding of small bodies and provide
valuable support for ongoing and future spacecraft missions.

14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
22
The categories of this paper are: chao-dyn
5
The categories of this paper are: gr-qc
37
The categories of this paper are: supr-con
0
The categories of this paper are: hep-ph
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
8
The categories of this paper are: hep-ex