PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-11:27:40
G01     125.4          12.9                3.3 +/-    2.11       8.7 +/-    2.11  0.030 / 0.030
G07     59.3           69.1                4.0 +/-    0.58       4.2 +/-    0.58  0.050 / 0.030
G08     48.1           36.2                1.9 +/-    1.09       3.0 +/-    1.09  0.030 / 0.030
G09     176.1          31.7                4.2 +/-    1.04       7.0 +/-    1.04  0.040 / 0.030
G11     114.6          36.5                3.5 +/-    0.78       5.3 +/-    0.78  0.150 / 0.290
G13     320.5          13.5                1.9 +/-    2.72       5.0 +/-    2.72  0.210 / 0.230
G17     199.7          18.1                2.8 +/-    1.98       6.5 +/-    1.98  0.180 / 0.410
G18     101.3          17.5                3.0 +/-    1.43       6.9 +/-    1.43  0.080 / 0.290
G28     279.0          53.8                4.1 +/-    2.83       4.9 +/-    2.83  0.090 / 0.180
G30     333.1          60.9                2.8 +/-    0.92       3.2 +/-    0.92  0.120 / 0.210