2926 Caldeira is a main belt asteroid with a perihelion of 2.003887 AU. It has an eccentricity of 0.1189267 and an orbital period of 1252.79 days (3.43 years).
Caldeira has an average orbital speed of 19.74977514 km/s and an inclination of 3.4828 °.
The asteroid was discovered on May 22, 1980 by Henri Debehogne.