In the 1960s, an apartment building area was built in Iso-Heikkilä, preventing any observations of low-sky objects in all directions except north.

The observatory is currently operated by Turun Ursa ry, an astronomical association founded by Yrjö Väisälä in 1928.

The main instruments of the association are located in the western dome: the 15 and 13 centimeter telescopes made by Yrjö Väisälä and a 19 cm Schmidt-Väisälä camera.

In the past, the dome has housed a 50 centimeter wide-angle camera which is nowadays located in the Kevola Observatory – it was the telescope used to discover the aforementioned minor planets and comets.

In the forest further away from the observatory, about 200 metres (660 ft) to the northeast, is a concrete pillar used by Yrjö Väisälä in the 1940s in his baseline measurements.