[10]: 23  It orbits the Sun in the outer main belt at a distance of 2.4–3.9 AU once every 5 years and 6 months (2,018 days).

[2] In both the Tholen- and SMASS-like taxonomy of the Small Solar System Objects Spectroscopic Survey (S3OS2), Tirela is a dark D-type asteroid.

[4][11] Conversely, the overall spectral type of the Tirela family is that of an S-type which agrees with the determined albedo (see below) by WISE and Akari.

[10]: 23 In the early 2000s, a rotational lightcurve of Tirela was obtained from photometric observations by a group of Hungarian astronomers.

[12] According to the surveys carried out by the Japanese Akari satellite and the NEOWISE mission of NASA's WISE telescope, Tirela measures between 14.67 and 15.697 kilometers in diameter and its surface has an albedo between 0.216 and 0.227.