Optical captures are a scheduled physical readout after control. Exact arithmetic here means exact results for the stated model inputs; measured inputs still carry uncertainty and significant-figure limits.

highlighted = computed this step

The exposure schedule has checked time

There are 4 fields at dwell time 5 s, so exposure time is 20 s.

texposure=45 s=20 st_{\text{exposure}}=4\cdot5\ \text{s}=20\ \text{s}
Exposure scheduleFields and channels set capture and time budgets.dwelltotal4 fields12 captures5 s20 s

Channels multiply the scheduled captures

The same 4 fields through 3 channels produce 12 captures.

Ncaptures=43=12N_{\text{captures}}=4\cdot3=12
Exposure scheduleFields and channels set capture and time budgets.dwelltotal4 fields12 captures5 s20 s