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Development of Motorized Slewing Mirror Stage for the UFFO Project

Published online by Cambridge University Press:  22 July 2013

J. Nam ,
K.B. Ahn ,
M. Cho ,
S. Jeong ,
J.E. Kim ,
S. Ahmad ,
P. Barrillon ,
S. Brandt ,
C. Budtz-Jørgensen  and
A.J. Castro-Tirado
...Show all authors
J. Nam
Affiliation:
National Taiwan University, Taipei, Taiwan
K.B. Ahn
Affiliation:
Yonsei University, Seoul, Korea
M. Cho
Affiliation:
Ewha Womans University, Seoul, Korea
S. Jeong
Affiliation:
Ewha Womans University, Seoul, Korea
J.E. Kim
Affiliation:
Ewha Womans University, Seoul, Korea
S. Ahmad
Affiliation:
LAL, University of Paris-Sud 11, Orsay, France
P. Barrillon
Affiliation:
LAL, University of Paris-Sud 11, Orsay, France
S. Brandt
Affiliation:
Technical University of Denmark, Copenhagen, Denmark
C. Budtz-Jørgensen
Affiliation:
Technical University of Denmark, Copenhagen, Denmark
A.J. Castro-Tirado
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain
C.-H. Chang
Affiliation:
National Space Organization, Hsinchu, Taiwan
C.-Y. Chang
Affiliation:
National Space Organization, Hsinchu, Taiwan
Y.Y. Chang
Affiliation:
National Taiwan University, Taipei, Taiwan
C.R. Chen
Affiliation:
National Space Organization, Hsinchu, Taiwan
P. Chen
Affiliation:
National Taiwan University, Taipei, Taiwan
H.S. Choi
Affiliation:
Korea Institute of Industrial Technology, Cheonan, Korea
Y.J. Choi
Affiliation:
Korea Advanced Institute of Science and Technology, Deajeon, Korea
P. Connel
Affiliation:
University of Valencia, Valencia, Spain
S. Dagoret-Campagne
Affiliation:
LAL, University of Paris-Sud 11, Orsay, France
C. Eyles
Affiliation:
University of Valencia, Valencia, Spain
B. Grossan
Affiliation:
Ewha Womans University, Seoul, Korea
J.J. Huang
Affiliation:
National Taiwan University, Taipei, Taiwan
M.-H.A. Huang Huang
Affiliation:
National United University, Miao-Li, Taiwan
A. Jung
Affiliation:
Ewha Womans University, Seoul, Korea
M.B. Kim
Affiliation:
Sungkyunkwan University, Suwon, Korea
S.-W. Kim
Affiliation:
Yonsei University, Seoul, Korea
Y.W. Kim
Affiliation:
Sungkyunkwan University, Suwon, Korea
A.S. Krasnov
Affiliation:
Moscow State University, Moscow, Russia
J. Lee
Affiliation:
Sungkyunkwan University, Suwon, Korea
H. Lim
Affiliation:
Sungkyunkwan University, Suwon, Korea
E.V. Linder
Affiliation:
Ewha Womans University, Seoul, Korea
T.-C. Liu
Affiliation:
National Taiwan University, Taipei, Taiwan
N. Lund
Affiliation:
Technical University of Denmark, Copenhagen, Denmark
K.W. Min
Affiliation:
Korea Institute of Industrial Technology, Cheonan, Korea
G.W. Na
Affiliation:
Ewha Womans University, Seoul, Korea
M.I. Panasyuk
Affiliation:
Moscow State University, Moscow, Russia
I.H. Park
Affiliation:
Sungkyunkwan University, Suwon, Korea
V. Reglero
Affiliation:
University of Valencia, Valencia, Spain
J. Ripa
Affiliation:
Sungkyunkwan University, Suwon, Korea
J.M. Rodrigo
Affiliation:
Instituto de Astrofísica de Andalucía, CSIC, Granada, Spain
G.F. Smoot
Affiliation:
Ewha Womans University, Seoul, Korea
J.E. Suh
Affiliation:
Ewha Womans University, Seoul, Korea
S. Svertilov
Affiliation:
Moscow State University, Moscow, Russia
N. Vedenkin
Affiliation:
Moscow State University, Moscow, Russia
M.-Z. Wang
Affiliation:
National Taiwan University, Taipei, Taiwan
I. Yashin
Affiliation:
Moscow State University, Moscow, Russia
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Abstract

The Ultra-Fast Flash Observatory (UFFO) is a space observatory for optical follow-ups of gamma ray bursts (GRBs), aiming to explore the first 60 seconds of GRBs optical emission. UFFO is utilized to catch early optical emissions from GRBs within few sec after trigger using a Gimbal mirror which redirects the optical path rather than slewing entire spacecraft. We have developed a 15 cm two-axis Gimbal mirror stage for the UFFO-Pathfinder which is going to be on board the Lomonosov satellite which is to be launched in 2013. The stage is designed for fast and accurate motion with given budgets of 3 kg of mass and 3 Watt of power. By employing stepping motors, the slewing mirror can rotate faster than 15 deg/sec so that objects in the UFFO coverage (60 deg × 60 deg) can be targeted in ~1 sec. The obtained targeting resolution is better 2 arcmin using a close-loop control with high precision rotary encoder. In this presentation, we will discuss details of design, manufacturing, space qualification tests, as well as performance tests.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 573 - 577
Copyright
© EAS, EDP Sciences 2013

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References

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