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Titel |
VLBI experiment with the Huygens Probe during its descent in the atmosphere of Titan: an evidence for meridional wind |
VerfasserIn |
Sergei Pogrebenko, Leonid Gurvits, Ian Avruch, Giuseppe Cimo, Huygens VLBI tracking team |
Konferenz |
EGU General Assembly 2010
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Medientyp |
Artikel
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Sprache |
Englisch
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Digitales Dokument |
PDF |
Erschienen |
In: GRA - Volume 12 (2010) |
Datensatznummer |
250037440
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Zusammenfassung |
Phase-referencing VLBI observations of the Huygens Probe were performed during its descent in the atmosphere of Titan on 14 January 2005 using a global network of 17 radio telescopes. The Probe’s position in the Titanographic frame was determined with the accuracy of about 1 km relative to a priori (DTWG) trajectory for altitude range from 150 to 20 km. Offsets of the order of 10 km from a priori trajectory in both longitudal and latitudal directions were measured, thus allowing us to estimate the meridional velocity of the probe’s motion in southward direction at a level of 3.5 m/s with a 0.7 m/s (1 sigma) uncertainty. |
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