Altitude [km] Extinction [1/km] Dust/Water Ice 17.21 1.0256e-02 D 18.63 1.0413e-02 D 20.00 1.0316e-02 D 21.42 9.6377e-03 D 22.82 8.3366e-03 D 24.24 6.5719e-03 D 25.63 4.6115e-03 I 27.04 2.7561e-03 I 28.45 1.2925e-03 I 38.22 2.2841e-05 I 39.66 2.3556e-05 I