Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Back-propagating the light of field stars to probe telescope mirrors
  aberrations   We propose a wavefront-based method to estimate the PSF over the whole field
of view. This method estimate the aberrations of all the mirrors of the
telescope using only field stars. In this proof of concept paper, we described
the method and present some qualitative results.

17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
7
The categories of this paper are: hep-th
5
The categories of this paper are: gr-qc
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
9
The categories of this paper are: nlin
36
The categories of this paper are: cmp-lg
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph