ISS opened its hooks at 12:05 CEST, so ca. 2-1/2 hrs ago. ATV is now attached only by its own hooks.

The determining factor for the undocking sequence is the timing of the
demerging, i.e. the time when ATV data / power and fuel lines are physically
disconnected from the ISS. The entire timeline is planned around this event.

Demerging time is set for 14:39 GMT/ 16:39 CEST

Everybody has their eyes focussed on their various computer screens and the
meeting rooms are full! The atmosphere here at ATV-CC is concentrated but relaxed… more later.

– Charlotte