Plan view of the orbital paths of S3, the planets, STEREO-A, SoHO, and PSP in heliocentric Cartesian coordinates during the observing period, from 2020 mid-November to end-December. All objects orbit counterclockwise. The comet trajectories are plotted as blue, orange and purple arcs corresponding to observations made with the HI-1, COR2 and LASCO/C3 cameras, respectively. Tick marks “X” are plotted every 5 days on the S3 path starting with DOY 318. Three terrestrial planets are represented by brown. The spacecraft are plotted with dashed pink curves.