Preliminary Results of the Laser Time Transfer (LTT) Experiment

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F08%3A00148857" target="_blank" >RIV/68407700:21340/08:00148857 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21340/09:00159268

Výsledek na webu

<a href="http://www.astro.amu.edu.pl/ILRS_Workshop_2008/presentations/5_fri/sess1/1_Fumin.ppt" target="_blank" >http://www.astro.amu.edu.pl/ILRS_Workshop_2008/presentations/5_fri/sess1/1_Fumin.ppt</a>

DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Preliminary Results of the Laser Time Transfer (LTT) Experiment

Popis výsledku v původním jazyce

The LTT payload onboard the Chinese experimental navigation satellite COMPASS-M1 with an orbital altitude of 21500 km launched on April 13, 2007 included dual-SPAD-detector, dual-timer based on TDC device , DSP, power supply and a LRA with the total massof 7.05 kg (including LRA's 2.45 kg) and the power consumption of 18 W. The time transfer experiment at Changchun SLR station has started since August 2007. The experiment has shown that the time and relative frequency differences between the ground hydrogen maser and the China-made space rubidium clocks have been obtained with the time precision of about 300ps for single measurement and the uncertainty of frequency difference of about 3x10-14 in 2000 seconds. After 17 months orbital flight, the LTT payload has kept its good performance.

Název v anglickém jazyce

Preliminary Results of the Laser Time Transfer (LTT) Experiment

Popis výsledku anglicky

The LTT payload onboard the Chinese experimental navigation satellite COMPASS-M1 with an orbital altitude of 21500 km launched on April 13, 2007 included dual-SPAD-detector, dual-timer based on TDC device , DSP, power supply and a LRA with the total massof 7.05 kg (including LRA's 2.45 kg) and the power consumption of 18 W. The time transfer experiment at Changchun SLR station has started since August 2007. The experiment has shown that the time and relative frequency differences between the ground hydrogen maser and the China-made space rubidium clocks have been obtained with the time precision of about 300ps for single measurement and the uncertainty of frequency difference of about 3x10-14 in 2000 seconds. After 17 months orbital flight, the LTT payload has kept its good performance.

Druh

O - Ostatní výsledky

CEP obor

BH - Optika, masery a lasery

OECD FORD obor

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Projekt

<a href="/cs/project/ME08063" target="_blank" >ME08063: Laserové měření vzdálenosti družic s milimetrovou přesností</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů