Ultra-rapid UT1 measurement by e-VLBI

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aut.researcherTakiguchi, Hiroshi
dc.contributor.authorSekido, M
dc.contributor.authorTakiguchi, H
dc.contributor.authorKoyama, Y
dc.contributor.authorKondo, T
dc.contributor.authorHaas, R
dc.contributor.authorWagner, J
dc.contributor.authorRitakari, J
dc.contributor.authorKurihara, S
dc.contributor.authorKokado, K
dc.date.accessioned2012-04-23T08:30:06Z
dc.date.available2012-04-23T08:30:06Z
dc.date.copyright2008-08-01
dc.date.issued2008-08-01
dc.description.abstractThe latency of UT1 measurement with Very Long Baseline Interferometry (VLBI) has been greatly reduced by using e-VLBI technology. VLBI observations on the baseline formed by the Kashima 34-m and the Onsala 20-m radio telescopes achieved ultra-rapid UT1 measurements, where the UT1 result was obtained within 30 min after the end of the observing session. A high speed network and a UDP-based data transfer protocol 'Tsunami' assisted the high data rate and long-distance data transfer from Onsala to Kashima. The accuracy of the UT1 value obtained from the 1-h single baseline e-VLBI experiment has been confirmed to be as the same level with the rapid combined solution of Bulletin-A. The newly developed technology is going to be transferred to the regular intensive VLBI sessions, and it is expected to contribute to the improved latency and accuracy of UT1 data.
dc.identifier.citationEarth, Planets and Space, vol. 60 (8), pp.865 - 870.
dc.identifier.issn1343-8832
dc.identifier.urihttps://hdl.handle.net/10292/3953
dc.publisherTerra Scientific Pub. Co.
dc.relation.isreplacedby10292/4232
dc.relation.isreplacedbyhttp://hdl.handle.net/10292/4232
dc.relation.urihttp://www.terrapub.co.jp/journals/EPS/abstract/6008/60080865.html
dc.rightsCopyright © 2008 TERRAPUB./EPS Executive Committee. All contents from 1998 - 2009 are Open Access. Otherwise, no part of the material protected by copyright notice may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying, recording or by any information storage and retrieval system, without written permission from the copyright owner.
dc.rights.accessrightsOpenAccess
dc.subjectE-VLBI
dc.subjectUT1
dc.titleUltra-rapid UT1 measurement by e-VLBI
dc.typeJournal Article
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