PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/23-08:43:10
G01     128.3          10.5              -16.9 +/-   25.73     -46.7 +/-   25.73  0.030 / 0.050
G07     50.0           69.4                6.5 +/-    0.35       6.9 +/-    0.35  0.040 / 0.050
G08     50.6           39.0                4.1 +/-    1.26       6.0 +/-    1.26  0.030 / 0.040
G09     174.4          33.0                7.6 +/-    0.78      12.5 +/-    0.78  0.030 / 0.030
G11     118.5          34.7                6.9 +/-    0.67      11.1 +/-    0.67  0.220 / 0.390
G17     199.1          14.8                3.5 +/-    2.95       8.7 +/-    2.95  0.220 / 0.350
G18     103.8          15.9                4.6 +/-    0.82      11.3 +/-    0.82  0.200 / 0.360
G23     161.1          10.0                3.8 +/-    2.04      10.7 +/-    2.04  0.100 / 0.180
G28     272.6          51.3                3.4 +/-    1.25       4.3 +/-    1.25  0.100 / 0.200
G30     329.0          57.9                3.2 +/-    0.54       3.8 +/-    0.54  0.060 / 0.080