NIRCam Ginkgo Leaf
This wispy artifact shaped like a ginkgo leaf was observed in long wavelength images in module A (detector A5). It was produced by scattered light from a star to the left (+V2) of the detector and ~24.5" below (-V3) the top edge. So far it has been seen in one observing program. Dithers should be sufficient to mitigate this rarely observed feature.
Figure 1. NIRCam ginkgo leaf