Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Flight model characterization of the wide-field off-axis telescope for the MATS satellite

Not Accessible

Your library or personal account may give you access

Abstract

We present optical characterization, calibration, and performance tests of the Mesospheric Airglow/Aerosol Tomography Spectroscopy (MATS) satellite, which for the first time, to the best of our knowledge, for a satellite, applies a linear-astigmatism-free confocal off-axis reflective optical design. Mechanical tolerances of the telescope were investigated using Monte Carlo methods and single-element perturbations. The sensitivity analysis results indicate that tilt errors of the tertiary mirror and a surface RMS error of the secondary mirror mainly degrade optical performance. From the Monte Carlo simulation, the tolerance limits were calculated to ${\pm}0.5\;{\rm mm}$, ${\pm}1\;{\rm mm}$, and ${\pm}{0.15^ \circ}$ for decenter, despace, and tilt, respectively. We performed characterization measurements and optical tests with the flight model of the satellite. Multi-channel relative pointing, total optical system throughput, and distortion of each channel were characterized for end-users. Optical performance was evaluated by measuring the modulation transfer function (MTF) and point spread function (PSF). The final MTF performance was 0.25 MTF at 20 lp/mm for the ultraviolet channel (304.5 nm), and 0.25–0.54 MTF at 10 lp/mm for infrared channels. The salient fact of the PSF measurement of this system is that there is no noticeable linear astigmatism detected over a wide field of view (${5.67^ \circ} \times {0.91^ \circ}$). All things considered, the design method showed great advantages in wide field of view observations with satellite-level optical performance.

© 2020 Optical Society of America

Full Article  |  PDF Article
More Like This
Wide-field off-axis telescope for the Mesospheric Airglow/Aerosol Tomography Spectroscopy satellite

Arvid Hammar, Woojin Park, Seunghyuk Chang, Soojong Pak, Anders Emrich, and Jan Stake
Appl. Opt. 58(6) 1393-1399 (2019)

Off-axis four-mirror telescope with a wide field of view and a long focal length using double integrated mirrors

Liwei Zhu, Hongbo Xie, Jie Chen, Tong Yang, and Lei Yang
Appl. Opt. 62(29) 7773-7782 (2023)

Transformable Reflective Telescope for optical testing and education

Woojin Park, Soojong Pak, Geon Hee Kim, Sunwoo Lee, Seunghyuk Chang, Sanghyuk Kim, Byeongjoon Jeong, Trenton James Brendel, and Dae Wook Kim
Appl. Opt. 59(18) 5581-5588 (2020)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (11)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (4)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved