Top panel: positions on the detectors of all stars detected in the first pawprint observation for our reference epoch TK9. For demonstration purposes, the detectors are shifted by fixed offsets in the x and y directions and the gaps between them do not reflect the real gaps between the different detectors. For this reason, the cluster appears slightly elongated in this image. In this plot, detector 1 is in the lower left corner and detector 16 is in the upper right corner. The detector numbers increase from left to right and from bottom to top. The x -axis extends approximately along the Dec direction, and the y-axis extends approximately along the RA direction. Middle panel: same as the top panel, but for the cluster stars. Bottom panel: same as the top panel, but for the galaxies.