PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/14-04:27:30
G01     94.2           30.6                7.3 +/-    1.25      12.6 +/-    1.25  0.030 / 0.040
G07     122.6          46.2                6.2 +/-    0.79       8.1 +/-    0.79  0.050 / 0.050
G11     70.8           40.2                5.3 +/-    1.19       7.6 +/-    1.19  0.070 / 0.120
G13     298.2          35.3                5.3 +/-    1.72       8.3 +/-    1.72  0.070 / 0.110
G17     210.9          52.9                8.0 +/-    0.73       9.8 +/-    0.73  0.110 / 0.160
G18     64.1           22.9                3.6 +/-    1.34       7.5 +/-    1.34  0.070 / 0.130
G19     213.0          21.8                5.9 +/-    2.35      12.4 +/-    2.35  0.060 / 0.040
G28     337.3          61.7                4.4 +/-    0.50       5.0 +/-    0.50  0.060 / 0.050
G30     84.4           79.5                5.5 +/-    0.37       5.5 +/-    0.37  0.030 / 0.030