Best-fitting emission spectra models for the stark reduction of all five NIRCam visits from Patel et al. (2024). The visits are ordered from left to right and labelled with V1–V5. Visit 4 is the stark reduction of the same data presented in Hu et al. (2024). The black spectrum is the total emission, with major absorbers highlighted in colour. The dark red points represent the low-flux Spitzer measurement from Demory et al. (2016b). The indicated BB χ² values are for the best fitting blackbody model for each visit. The fitted models assume full heat redistribution f = 1/4.