  Compared with previous space-borne surveys, the Transiting Exoplanet Survey
Satellite (TESS) provides a unique and new approach to observe Solar System
objects. While its primary mission avoids the vicinity of the ecliptic plane by
approximately six degrees, the scale height of the Solar System debris disk is
large enough to place various small body populations in the field-of-view. In
this paper we present the first data release of photometric analysis of TESS
observations of small Solar System Bodies, focusing on the bright end of the
observed main-belt asteroid and Jovian Trojan populations. This data release,
named TSSYS-DR1, contains 9912 light curves obtained and extracted in a
homogeneous manner, and triples the number of bodies with unambiguous
fundamental rotation characteristics, namely where accurate periods and
amplitudes are both reported. Our catalogue clearly shows that the number of
bodies with long rotation periods are definitely underestimated by all previous
ground-based surveys, by at least an order of magnitude.
