DETERMINING THE SIGHTING HEIGHT OF THE PLANET HORIZON TRANSPARENCY SPECTRUM AND THERMAL-RADIATION MEASUREMENTS

Methods are proposed for the absolute optical referencing of height (A ORH) of the atmosphere transparency and outgoing radiation intensity m easurements made in the tangent path geometry (the planet horizon meas urements). The accuracy of those methods is analyzed based on the resu lts of numerical experiments. The accuracy of AORH transparency spectr um measurements is found to be 1-2 km in the 20-70 km height range, an d that of thermal radiation spectrum measurements is 2-3 km in the 46- 70 km height range and approximately 4 km in the 10-20 km height range , respectively.