History of Monitoring Earth Orientation, and Re-analyses of Old Data

0486696 - ASÚ 2019 RIV DE eng C - Conference Paper (international conference)
Vondrák, Jan
History of Monitoring Earth Orientation, and Re-analyses of Old Data.
International Symposium on Earth and Environmental Sciences for Future Generations. Berlin: Springer, 2018, s. 203-211. International Association of Geodesy Symposia, 147. ISBN 978-3-319-69169-5.
[International Symposium on Earth and Environmental Sciences for Future Generations. Prague (CZ), 22.06.2015-02.07.2015]
Institutional support: RVO:67985815
Keywords : history * optical astrometry * rotation of the Earth
OECD category: Astronomy (including astrophysics,space science)

Here we concentrate on optical astrometry that dominated throughout the twentieth century, namely we present some important re-analyses of these observations. Special attention is devoted to the re-analyses done in 1998–2012 at the Astronomical Institute, Czech Academy of Sciences. Data covering 1899.7–1992.0 were used to derive Earth orientation parameters and to improve star positions and proper motions in the Hipparcos celestial reference frame.
Permanent Link: http://hdl.handle.net/11104/0288931