  We report a comprehensive analysis of the instrumentally observed meteorite
fall \v{Z}\v{d}\'ar nad S\'azavou, which occurred in the Czech Republic on 9
December 2014 at 16:16:45-54 UT. The original meteoroid with an estimated
initial mass of 150 kg entered the atmosphere with a speed of 21.89 km/s and
began a luminous trajectory at an altitude of 98.06 km. At the maximum, it
reached -15.26 absolute magnitude and terminated after an 9.16 s and 170.5 km
long flight at an altitude of 24.71 km with a speed of 4.8 km/s. The average
slope of the atmospheric trajectory to the Earth's surface was only
25.66{\deg}. Before its collision with Earth, the initial meteoroid orbited the
Sun on a moderately eccentric orbit with perihelion near Venus orbit, aphelion
in the outer main belt, and low inclination. During the atmospheric entry, the
meteoroid severely fragmented at a very low dynamic pressure 0.016 MPa and
further multiple fragmentations occurred at 1.4 - 2.5 MPa. Based on our
analysis, so far three small meteorites classified as L3.9 ordinary chondrites
totaling 87 g have been found almost exactly in the locations predicted for a
given mass. Because of very high quality of photographic and radiometric
records, taken by the dedicated instruments of the Czech part of the European
Fireball Network, \v{Z}\v{d}\'ar nad S\'azavou belongs to the most reliably,
accurately, and thoroughly described meteorite falls in history.
