B4 Astronomical Institute and the Geodetic Observatory Pecný in Ondřejov
Both of the institutions are located about 35 km south-east of Prague near the village of Ondřejov at an altitude of about 500 m. Here in a charming environment they are away from the air and light pollution of urban Prague.
The Astronomical Observatory in Ondřejov was built in 1898 by the Czech amateur astronomer Josef Jan Frič and donated to the Czech state on October 28, 1928 to celebrate the tenth anniversary of its independence. From 1928 it was administered by the Charles University, Prague until the founding of the Czechoslovak Academy of Sciences in 1953, which from then on operated it as part of its Astronomical Institute in conjunction with other observatories. The Astronomical Institute has been responsible, amongst other scientific achievements, for the discovery of numerous asteroids; more recent works include the examination of the trajectory and origin of the Chelyabinsk meteor. Of interest is the fact, that the participants of the 3rd IUGG General Assembly, who met in Prague, September 3-10, 1927, collectively visited the Ondřejov Observatory.
The Geodetic Observatory Pecný is located close to the campus of the Astronomical Institute and is part of the Department of Geodesy and Geodynamics of the Research Institute of Geodesy, Cartography and Topography. The department has its beginnings in the period before 1954. Within the broad range of research activities and an active part in the international scientific cooperation, it also contributes to scientific services and projects of the IAG, especially IGS, EUREF/EPN, ICET, BGI, IDS, IGFS and participates in several international EU projects. The Geodetic Observatory Pecný is responsible for operation of all observing facilities (including data collection, archiving and dissemination), in particular GPS, GLONASS, Galileo and JAXA receivers; water vapor radiometer, tidal, superconducting and absolute gravimeters; meteorological sensors, seismometer, and other instruments.
The programme of the trip includes a visit of the nearby Komorní Hrádek Castle.