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Paper Abstract and Keywords
Presentation 2014-02-21 11:20
Simulation of Improvement of Orbit Prediction for Optical Communication Satellite Downlink Experiment -- Evaluation of accuracy of Two Line Elements --
Ingvar Out (Delft University of Tech./NICT), Hiroo Kunimori (NICT) SANE2013-139
Abstract (in Japanese) (See Japanese page) 
(in English) In order to achieve initial acquisition of laser communication satellites using TLE data, a program was written that performs a conversion between Two Line Elements (TLE) and Consolidated Laser Ranging Prediction Format (CPF). The ultimate goal of the program is to contribute to improved real-time orbit determination utilizing a sequential filter. The accuracy of the program depends on the quality of the TLE, the TLE update frequency and the accuracy of the SGP4 propagator [1] that is used. The results of the program have been checked against some original CPF files and an RMS of differences of less than 1 km was achieved for orbits in between approximately 685-820 km altitude. Due to the increased atmospheric effect at lower altitudes, larger inaccuracies result; For Tandem X (mean orbital altitude of 510 km) the RMS of differences was about 2 km for a period where TLE data was regularly refreshed. Because both the accuracy and update frequency of TLE data are not necessarily consistent over time, the accuracy analysis performed in this text is rather a snapshot of accuracies corresponding to the epochs considered.
Keyword (in Japanese) (See Japanese page) 
(in English) CPF / TLE / Orbit Determination / / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 435, SANE2013-139, pp. 43-46, Feb. 2014.
Paper # SANE2013-139 
Date of Issue 2014-02-13 (SANE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee SAT SANE  
Conference Date 2014-02-20 - 2014-02-21 
Place (in Japanese) (See Japanese page) 
Place (in English) Hotel Kamefuku (Yamaguchi) 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Satellite application and general 
Paper Information
Registration To SANE 
Conference Code 2014-02-SAT-SANE 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Simulation of Improvement of Orbit Prediction for Optical Communication Satellite Downlink Experiment 
Sub Title (in English) Evaluation of accuracy of Two Line Elements 
Keyword(1) CPF  
Keyword(2) TLE  
Keyword(3) Orbit Determination  
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1st Author's Name Ingvar Out  
1st Author's Affiliation Delft University of Technnology, The Netherlands/National Institute of Information and Communications Technology (Delft University of Tech./NICT)
2nd Author's Name Hiroo Kunimori  
2nd Author's Affiliation National Institute of Information and Communications Technology (NICT)
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Speaker Author-1 
Date Time 2014-02-21 11:20:00 
Presentation Time 25 minutes 
Registration for SANE 
Paper # SANE2013-139 
Volume (vol) vol.113 
Number (no) no.435 
Page pp.43-46 
#Pages 4 
Date of Issue 2014-02-13 (SANE) 

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