About: Atomic Clock Ensemble in Space

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Atomic Clock Ensemble in Space (ACES) is a project led by the European Space Agency which will place ultra-stable atomic clocks on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas of research, including general relativity and string theory tests, time and frequency metrology, and very long baseline interferometry.

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rdfs:label	Atomic Clock Ensemble in Space (ca) Atomic Clock Ensemble in Space (de) Atomic Clock Ensemble in Space (en) Atomic Clock Ensemble in Space (it) Atomic Clock Ensemble in Space (fr)
rdfs:comment	Atomic Clock Ensemble in Space (ACES) est un projet mené par l'Agence spatiale européenne qui placera une horloge atomique ultra-stable sur la Station spatiale internationale. Son fonctionnement dans l'environnement de microgravité de l'ISS va assurer un climat stable et une base de temps précise pour les différents domaines de recherche, dont la relativité générale (Décalage d'Einstein), la théorie des cordes, la métrologie de la mesure du temps, et l'interférométrie à très longue base. (fr) L'Atomic Clock Ensemble in Space (ACES) è un progetto guidato dall'Agenzia Spaziale Europea che riguarda un orologio atomico ultra-stabile posto sulla Stazione Spaziale Internazionale. Il funzionamento in ambiente di microgravità della ISS fornisce una misura del tempo particolarmente stabile e precisa per diverse aree di ricerca, tra cui la relatività generale e le prove della teoria delle stringhe, metrologia del tempo e frequenza. L'orologio è programmato per raggiungere la stazione spaziale a bordo di una HTV, per poi essere montato esternamente al laboratorio Columbus dell'ESA. L'orologio è progettato per operare in orbita per 18-36 mesi. (it) Atomic Clock Ensemble in Space (ACES) és un projecte liderat per l'Agència Espacial Europea per situar un rellotge atòmic ultra-estable en l'Estació Espacial Internacional. L'operació en un entorn de microgravetat de l'ISS proporcionarà una base de temps precisa i estable per a diverses àrees d'investigació, incloent proves de la relativitat general i la teoria de cordes, la metrologia del temps i la freqüència, i una base molt important per a la interferometria. La càrrega útil contindrà dos rellotges: un per a l'estabilitat a llarg termini i un per a l'estabilitat a curt termini. (ca) Das Atomic Clock Ensemble in Space (kurz: ACES) ist ein in Entwicklung befindliches Experimentallabor, das am Columbus-Raumlabor, dem Wissenschaftslabor der ESA für die Internationale Raumstation, befestigt werden soll. Hierzu dient eine Nutzlastpalette; für ACES ist die der Erde zugewandte Palette vorgesehen. Es ist nicht zu verwechseln mit SolACES, einem Versuch zur Messung der Einflüsse durch VUV-Strahlung.ACES dient zum Test einer neuen Generation von Atomuhren unter den Bedingungen der Mikrogravitation. Damit soll eine genauere globale Zeitbestimmung (z. B. für GNSS, insbesondere Galileo) ebenso wie eine Evaluation der Relativitätstheorie möglich werden. Mit der Herstellung ist die Firma Astrium beauftragt. (de) Atomic Clock Ensemble in Space (ACES) is a project led by the European Space Agency which will place ultra-stable atomic clocks on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas of research, including general relativity and string theory tests, time and frequency metrology, and very long baseline interferometry. (en)
dcterms:subject	Atomic clocks Columbus (ISS module) Space science European Space Agency International Space Station experiments
Wikipage page ID	10828381 (xsd:integer)
Wikipage revision ID	1090875271 (xsd:integer)
Link from a Wikipage to another Wikipage	Caesium standard Metrology Interferometry Micro-g environment General relativity String theory Columbus (ISS module) CNES European Space Agency Atomic clocks Columbus (ISS module) Space science International Space Station Hydrogen maser Atomic clock European Space Agency International Space Station experiments Scientific research on the ISS European contribution to the International Space Station SpaceX Falcon 9
Link from a Wikipage to an external page	http://wsn.spaceflight.esa.int/docs/others/aces_flyer.pdf
sameAs	Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space Atomic Clock Ensemble in Space
dbp:wikiPageUsesTemplate	dbt:Europe-spacecraft-stub dbt:Reflist dbt:Short_description
has abstract	Atomic Clock Ensemble in Space (ACES) és un projecte liderat per l'Agència Espacial Europea per situar un rellotge atòmic ultra-estable en l'Estació Espacial Internacional. L'operació en un entorn de microgravetat de l'ISS proporcionarà una base de temps precisa i estable per a diverses àrees d'investigació, incloent proves de la relativitat general i la teoria de cordes, la metrologia del temps i la freqüència, i una base molt important per a la interferometria. La càrrega útil contindrà dos rellotges: un per a l'estabilitat a llarg termini i un per a l'estabilitat a curt termini. Està programat que el rellotge viatjarà fins a l'estació espacial a bord d'un HTV japonès, i serà muntat externament al Laboratori Columbus de l'ESA. Està previst que el rellotge operi en òrbita durant 18–36 mesos. El llançament està previst en el 2013 seguit d'una fase d'operacions de 12-18 mesos. (ca) Atomic Clock Ensemble in Space (ACES) is a project led by the European Space Agency which will place ultra-stable atomic clocks on the International Space Station. Operation in the microgravity environment of the ISS will provide a stable and accurate time base for different areas of research, including general relativity and string theory tests, time and frequency metrology, and very long baseline interferometry. The payload actually contains two clocks: a caesium laser cooled atomic clock (PHARAO) developed by CNES, France for long-term stability and an active hydrogen maser (SHM) developed by Spectratime, Switzerland for short-term stability.The onboard frequency comparison between PHARAO and SHM will be a key element for the evaluation of the accuracy and the short/medium-term stability of the PHARAO clock. Further, it will allow to identify the optimal operating conditions for PHARAO and to select a compromise between frequency accuracy and stability.The mission will also be a test-bed for the space qualification of the active hydrogen maser SHM. After optimisation performances in the 2 × 10−16 range for both frequency instability and inaccuracy are intended. This corresponds to a time error of about 1 second over 300 million (300 × 106) years. The clock ensemble was expected to travel to the space station aboard a SpaceX Falcon 9 in 2021. The ACES module will be externally mounted to the ESA's Columbus Laboratory. with an 18-30 month expected operations phase. (en) Das Atomic Clock Ensemble in Space (kurz: ACES) ist ein in Entwicklung befindliches Experimentallabor, das am Columbus-Raumlabor, dem Wissenschaftslabor der ESA für die Internationale Raumstation, befestigt werden soll. Hierzu dient eine Nutzlastpalette; für ACES ist die der Erde zugewandte Palette vorgesehen. Es ist nicht zu verwechseln mit SolACES, einem Versuch zur Messung der Einflüsse durch VUV-Strahlung.ACES dient zum Test einer neuen Generation von Atomuhren unter den Bedingungen der Mikrogravitation. Damit soll eine genauere globale Zeitbestimmung (z. B. für GNSS, insbesondere Galileo) ebenso wie eine Evaluation der Relativitätstheorie möglich werden. Mit der Herstellung ist die Firma Astrium beauftragt. Die gesamte Einheit soll eine Masse von 227 kg haben und eine elektrische Leistungsaufnahme von 470 W. Die Versuchsdauer ist mit 18 Monaten angesetzt. (de) Atomic Clock Ensemble in Space (ACES) est un projet mené par l'Agence spatiale européenne qui placera une horloge atomique ultra-stable sur la Station spatiale internationale. Son fonctionnement dans l'environnement de microgravité de l'ISS va assurer un climat stable et une base de temps précise pour les différents domaines de recherche, dont la relativité générale (Décalage d'Einstein), la théorie des cordes, la métrologie de la mesure du temps, et l'interférométrie à très longue base. (fr) L'Atomic Clock Ensemble in Space (ACES) è un progetto guidato dall'Agenzia Spaziale Europea che riguarda un orologio atomico ultra-stabile posto sulla Stazione Spaziale Internazionale. Il funzionamento in ambiente di microgravità della ISS fornisce una misura del tempo particolarmente stabile e precisa per diverse aree di ricerca, tra cui la relatività generale e le prove della teoria delle stringhe, metrologia del tempo e frequenza. L'orologio è programmato per raggiungere la stazione spaziale a bordo di una HTV, per poi essere montato esternamente al laboratorio Columbus dell'ESA. L'orologio è progettato per operare in orbita per 18-36 mesi. (it)
gold:hypernym	Project
prov:wasDerivedFrom	wikipedia-en:Atomic_Clock_Ensemble_in_Space?oldid=1090875271&ns=0
page length (characters) of wiki page	4395 (xsd:nonNegativeInteger)
foaf:isPrimaryTopicOf	wikipedia-en:Atomic_Clock_Ensemble_in_Space
is Link from a Wikipage to another Wikipage of	Atomic Clock (disambiguation) Atomic clock ensemble in space Columbus (ISS module) Columbus External Payload Facility Ace (disambiguation) International Space Station Atomic clock SOLAR (ISS) European contribution to the International Space Station
is Wikipage redirect of	Atomic clock ensemble in space
is Wikipage disambiguates of	Atomic Clock (disambiguation) Ace (disambiguation)
is foaf:primaryTopic of	wikipedia-en:Atomic_Clock_Ensemble_in_Space

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