PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/27-10:42:50
G01     125.4          12.9                3.4 +/-    2.42       9.0 +/-    2.42  0.040 / 0.040
G07     59.5           69.1                2.6 +/-    0.54       2.8 +/-    0.54  0.050 / 0.030
G08     47.9           35.7                1.8 +/-    1.03       2.8 +/-    1.03  0.030 / 0.020
G09     175.8          31.4                3.8 +/-    1.69       6.5 +/-    1.69  0.030 / 0.030
G11     114.2          36.5                3.5 +/-    1.38       5.5 +/-    1.38  0.190 / 0.410
G13     320.5          13.6                1.2 +/-    2.43       3.0 +/-    2.43  0.080 / 0.330
G17     199.5          18.5                1.4 +/-    3.27       3.1 +/-    3.27  0.240 / 0.250
G18     101.1          17.5                2.4 +/-    1.27       5.6 +/-    1.27  0.190 / 0.330
G28     278.9          53.7                1.5 +/-    2.83       1.8 +/-    2.83  0.100 / 0.220
G30     332.7          60.7                2.2 +/-    0.80       2.5 +/-    0.80  0.120 / 0.250