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Concept for a Geode.c and Time Reference in Space (GETRIS)
Anja Schlicht, Urs Hugentobler, Monika Ste8er, Wolfgang Schäfer
Technische Universität München
funded by the European Space Agency (4000103328/2011/NL/WE) 1
Synergy
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Synergy
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Sun et al. Optics Express 21 (2013) 1865
Puls PosiOon ModulaOon
Kirchner et al. ConTEL 2011
SLR
ELT
Ranging: GNSS
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LEO orbit 2 cm accuracy 1,5 mm relaOve precision
inter –satellite link
wikipedia
Time reference
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European Data Relay System (EDRS)
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Data rate: up to 1,8 Gbit/s GEO-‐LEO two-‐way phase modulated
GETRIS concept
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GGOS staOon in space
Field of applicaOons
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DORIS and distribuOon of Ome
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Atmospheric sounding
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GGOS staOon in space and on ground
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data transfer
Going into space
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Win-‐Win-‐SituaOon
ILRS, GGOS offer to ESA can be: • a validated survey of Galileo clocks in precision and accuracy and precise orbits of Galileo satellites from staOons with a well observed troposphere
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• Data up/down link for early warning massages or even scien.fic data
Thank you very much!
The view in this talk can in no way be taken to reflect the official opinion of the European Space Agency.
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