The occultation of a star by asteroid Helamuda - 04 January 2023

This first positive asteroidal occulation of this year. A bright star, good observation conditions allowed for a very short exposure time during capturing. This was crucial for recording the beautiful diffractions.

The map with predicted path:

Light curve from video record.
Diffraction effects during occultation.
The begin of occultation was at 02:45:30,087 UTC +/- 0.002s; end at 02:45:31,020 UTC +/- 0.002s. Total duration is 0.933s +/-0.002s.