About: Aces mission status and outlook

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	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 10 16. The ACES frequency reference will be distributed to ground by a MicroWave Link (MWL) and used to compare widely separated clocks. These comparisons will allow precision tests of 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. 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 10 16. The ACES frequency reference will be distributed to ground by a MicroWave Link (MWL) and used to compare widely separated clocks. These comparisons will allow precision tests of 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. (en)
Title	Aces mission status and outlook Aces mission status and outlook (en)
skos:prefLabel	Aces mission status and outlook Aces mission status and outlook (en)
skos:notation	RIV/68407700:21340/11:00204791!RIV13-MSM-21340___
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Procházka, Ivan
http://linked.open.../riv/druhVysledku	D - Článek ve sborníku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta jaderná a fyzikálně inženýrská
http://linked.open...dnocenehoVysledku	184428
http://linked.open...ai/riv/idVysledku	RIV/68407700:21340/11:00204791
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Atmospheric propagation; Atomic clock ensemble in spaces; Columbus; Einstein's theory; Flight models; Fractional frequencies; Frequency reference (en)
http://linked.open.../riv/klicoveSlovo	Atmospheric propagation Atomic clock ensemble in spaces Columbus Einstein's theory Flight models Fractional frequencies Frequency reference
http://linked.open...ontrolniKodProRIV	[4B228076D453]
http://linked.open...v/mistoKonaniAkce	Cape Town
http://linked.open...i/riv/mistoVydani	Paris
http://linked.open...i/riv/nazevZdroje	62nd International Astronautical Congress 2011
http://linked.open...in/vavai/riv/obor	JV
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	12 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...iv/tvurceVysledku	Hausner, K. Heß, M. P. Hummelsberger, B. Nasca, R. Procházka, Ivan Pütz, C.
http://linked.open...vavai/riv/typAkce	WRD - Světová
http://linked.open.../riv/zahajeniAkce	2011-10-03 (xsd:date)
number of pages	14 (xsd:int)
http://purl.org/ne...btex#hasPublisher	International Astronautical Federation (IAF)
https://schema.org/isbn	978-1-61839-805-5
http://localhost/t...ganizacniJednotka	21340

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