Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Laboratory Demonstration of an Active Optics System for High-Resolution
  Deployable CubeSat   In this paper we present HighRes: a laboratory demonstration of a 3U CubeSat
with a deployable primary mirror that has the potential of achieving
high-resolution imaging for Earth Observation. The system is based on a
Cassegrain telescope with a segmented primary mirror composed of 4 petals that
form an effective aperture of 300 mm. The design provides diffraction limited
performance over the entire field-of-view and allows for a panchromatic
ground-sampling distance of less than 1 m at an altitude of 350 km. The
alignment and co-phasing of the mirror segments is performed by focal plane
sharpening and is validated through rigorous numerical simulations. The
opto-mechanical design of the prototype and its laboratory demonstration are
described and measurements from the on-board metrology sensors are presented.
This data verifies that the performance of the mirror deployment and
manipulation systems is sufficient for co-phasing. In addition, it is shown
that the mirrors can be driven to any target position with an accuracy of 25 nm
using closed-loop feedback between the mirror motors and the on-board
metrology.

13
The categories of this paper are: quant-ph
16
The categories of this paper are: stat
26
The categories of this paper are: bayes-an
20
The categories of this paper are: acc-phys
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin
10
The categories of this paper are: q-bio
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
28
The categories of this paper are: alg-geom