HeartLander (HL) in the intrapericardial space (IP) in (a) coronal view and (b) axial view. The surrounding organs include the heart (H), right lung (RL), left lung (LL), diaphragm (D), fibrous pericardium (FP), sternum (ST), spinal column (SP), and esophagus (E). The sizes of the intrapericardial space and fibrous pericardium have been exaggerated for clarity. The robot tether is not shown.