Fig. 4: Atomic oxygen emission and concentration profile.

a Emission profile measured with GREAT (black line, position B in Fig. 1c) and calculated emission profile (red line) from combined SABER/NRLMSISE-00 atomic oxygen and temperature profiles. b Residual (black line) of the measured and calculated profiles shown in a. c Combined SABER (red squares) and NRLMSISE-00 (straight red line) profile. The grey area indicates those profiles which are compatible with the measured GREAT spectrum (±1σ uncertainty).