Question about Dreame X50 Ultra Complete

I would like to know the exact dimensions of the charging station. I can find the dimensions: - Height: 59cm - Width: 45.70cm - Depth: 35cm I would like to ask if anyone can tell me the exact depth of the top section, i.e. without the ramp. Unfortunately, I can't find any exact details. I would like to know this in order to be able to estimate how far away from the wall my sofa needs to be placed in order to be able to store the charging station behind it, while leaving more space for the ramp under the sofa. Thank you