Object table comprising an electrostatic clamp

An object table for holding an object, comprising:

• an electrostatic clamp configured to clamp the object on the object table;
• an unloading unit configured to unload the object from the object table;
• a neutralizer configured to at least partially neutralize a charge of the electrostatic clamp, wherein the neutralizer is configured to at least partially neutralize the charge while the unloading unit is unloading the object;
• and
• a sensor for obtaining information on the charge, wherein the sensor is configured to provide a first measurement associated with the object in a first state and a second measurement associated with the object in a second state, wherein, in the first state, the object is on the object table, and wherein, in the second state, the object is away from the object table.