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The ACES mission: System development and test status

Heß, M.P. and Stringhetti, L. and Hummelsberger, B. and Hausner, K. and Stalford, R. and Nasca, R. and Cacciapuoti, Luigi and Much, R. and Feltham, S. and Vudali, T. and Léger, B. and Picard, F. and Massonnet, D. and Rochat, P. and Goujon, D. and Schäfer, W. and Laurent, P. and Lemonde, P. and Clairon, A. and Wolf, P. and Salomon, C. and Procházka, I. and Schreiber, U. and Montenbruck, Oliver (2011) The ACES mission: System development and test status. Acta Astronautica, 69 (11-12), pp. 929-938. ISSN 00945765.

Full text not available from this repository.

Official URL: http://dx.doi.org/10.1016/j.actaastro.2011.07.002

Abstract

Atomic Clock Ensemble in Space (ACES) is an ESA mission in fundamental physics based on a new generation of clocks operated in the microgravity environment of the International Space Station. Installed at the external payload facility of the Columbus module, ACES will accommodate two atomic clocks: PHARAO, a primary frequency standard based on samples of laser cooled Cs atoms, and the active H-maser SHM. The two on-board clocks will generate a time scale with fractional frequency instability and inaccuracy of a few parts in 1016. The ACES frequency reference will be distributed to ground by a MicroWave Link (MWL) and used to compare distant clocks. These comparisons will allow precision tests of the Einstein's theory of general relativity, including a measurement of the gravitational red-shift, a search for time variations of fundamental constants, and tests of the standard model extension. ACES will also support applications in different areas of research, including geodesy and GNSS remote sensing. A link in the optical domain is also part of ACES for time transfer experiments, ranging, and analysis of atmospheric propagation delays. The engineering models of the ACES clocks and main subsystems have been successfully tested, and manufacturing of the flight models has been started. Mission concept, scientific objectives, and status of ACES will be presented together with the latest test results.

Document Type:Article
Title:The ACES mission: System development and test status
Authors:
AuthorsInstitution or Email of Authors
Heß, M.P.EADS
Stringhetti, L.UNSPECIFIED
Hummelsberger, B.UNSPECIFIED
Hausner, K.UNSPECIFIED
Stalford, R.UNSPECIFIED
Nasca, R.ESA
Cacciapuoti, LuigiESA
Much, R.UNSPECIFIED
Feltham, S.UNSPECIFIED
Vudali, T.UNSPECIFIED
Léger, B.UNSPECIFIED
Picard, F.UNSPECIFIED
Massonnet, D.UNSPECIFIED
Rochat, P.UNSPECIFIED
Goujon, D.UNSPECIFIED
Schäfer, W.UNSPECIFIED
Laurent, P.UNSPECIFIED
Lemonde, P.UNSPECIFIED
Clairon, A.UNSPECIFIED
Wolf, P.UNSPECIFIED
Salomon, C.UNSPECIFIED
Procházka, I.UNSPECIFIED
Schreiber, U.UNSPECIFIED
Montenbruck, OliverDLR
Date:31 July 2011
Journal or Publication Title:Acta Astronautica
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:69
Page Range:pp. 929-938
ISSN:00945765
Status:Published
Keywords:ACES, ISS, clock, GNSS
HGF - Research field:other
HGF - Program:other
HGF - Program Themes:other
DLR - Research area:no assignement
DLR - Program:no assignment
DLR - Research theme (Project):other
Location: Oberpfaffenhofen
Institutes and Institutions:Space Operations and Astronaut Training
Deposited By: Dr.rer.nat.hab. Oliver Montenbruck
Deposited On:23 Jan 2012 18:01
Last Modified:07 Feb 2013 20:48

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