30.04.2026
During the expedition, two more new clusters were installed, three inter-cluster strings with laser calibration light sources were deployed, repairs and upgrades were made to the already installed detector elements, a bottom cable was laid for power supply and data transmission for two clusters, and a full-scale string with optical modules based on 20-inch photomultipliers was commissioned by expedition participants and Chinese colleagues. The effective volume of the facility reached approximately 0.8 km³.