Thermal infra-red channels S7 - S9, F1 and F2 are collected and stored at 1 km resolution. Each channel has two detectors, aligned along track at the sub-satellite point.
As shown in Figure 1 below, the leftmost detector elements (yellow) are common to channels S7 - S9 and F2, while the remaining detector elements (red) are used in channel F1 only.
Figure 1: SLSTR Detector Configuration
1 km Spatial Resolution Channels S7 - S9, F1 and F2 (MIR to TIR)