Zero-order moment maps (integrated intensity) of the total emission of the Orion B cloud (left) and mean spectra (right) of the ¹³CO (1–0) (top) and C¹⁸O (1–0) (bottom) molecular lines from the 30 m data sets. For the zero-order moment map, the integration was done on a velocity range between –5 and 20 km s^–1. Isolated pixels and pixels with a signal-to-noise ratio lower than 3 are blanked.