Basic parameters of the correlation IR radiometer for satellite measurement of the nitrogen oxide in the atmosphere.
Spectral range of IR radiation of 2530-2590 cm<sup>-1</sup> is defined for measurement of measurement of N<sub>2</sub>O in the atmosphere from the satellite by the correlation method, the optimum parameters of radiometer correlation cell are defined. The influence of change in atmosphere of content of gases (H<sub>2</sub>O, CO, O<sub>3</sub>, N<sub>2</sub>O, CH<sub>4</sub>), vertical distribution of temperature of air, temperature of a spreading surface of the Earth on information signal of radiometer.