  Results of the speckle-interferometry observations at the 4.1 m Southern
Astrophysical Research Telescope (SOAR) obtained during 2023 are presented:
1913 measurements of 1533 resolved pairs or subsystems (median separation
0.16") and non-resolutions of 552 targets; 42 pairs are resolved here for the
first time. This work continues our long-term effort to monitor orbital motion
in close binaries and hierarchical systems. A large number (147) of orbits have
been determined for the first time or updated using these measurements.
Complementarity of this program with the Gaia mission is highlighted.
