Characterization of the source area based on the illumination condition and modeled sublimation temperature. The white facets correspond to the illuminated areas. Unilluminated areas with sublimation temperature above 175 K are represented by red facets; those with sublimation temperature lower than 175 K are indicated by dark gray facets. Filled green circles indicate the footprints of apparent sources of the observed sunset jets. The dusk terminator corresponds approximately to the boundary between white and red facets, while the TOI corresponds to the boundary between red and gray facets. a)–c) For observations in Fig. 2g–i. d)–f) For observations in Fig. 3g–i. No apparent sources are identified in f).