Open Access

Table B.2

Uncertainty factor on the mean abundance F(y¯i)$F\left( {{{\bar y}_i}} \right)$ of the main atmospheric species.

Species Altitude (km)
H2 943 1.14
C 46 2.74
H 31 9.17
CH4 153 9.28
C2H2 127 3.14
C2H4 41 10.05
C2H6 86 6.98
HCN 438 5.39
O(3P) 31 52.72
N2 1026 1.01
CO 1026 1.07
N(4S) 31 26.44
N(2D) 115 42.01
H+ 127 5.36
C+ 121 5.60
N+ 923 1.59
N2+${\rm{N}}_2^ + $ 1026 1.90
e 146 2.00

Notes. These values were computed at the level at which the uncertainty on the abundance of the studied species is maximum. The uncertainty factor F gives the interval [ y¯F,y¯×F ]$\left[ {{{\bar y} \over F},\bar y \times F} \right]$ at 1σ.

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