Shape and rotation of 2008 TC3

Peter Scheirich, Astronomical Institute, Academy of Sciences of the Czech Rep., Ondrejov, Czech Republic

Photometric observations of the asteroid 2008 TC3 taken at 2008 Oct. 6 and 7 revealed that it was in a non-principal axis rotation state. We constructed a numerical model of the asteroid's shape and rotation. The asteroid was in a long-axis mode of excited rotation. The two frequencies of the asteroid were 1/(99.173 s) and 1/(96.988 s), corresponding to rotation and precession, respectively. We will present a numerical model of the tumbling asteroid.