PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/14-09:28:10
G01     125.5          12.9                4.1 +/-    2.70      10.8 +/-    2.70  0.050 / 0.030
G07     60.7           68.9                4.8 +/-    0.53       5.1 +/-    0.53  0.040 / 0.040
G08     48.1           36.3                3.4 +/-    0.91       5.2 +/-    0.91  0.210 / 0.290
G09     174.5          29.7                6.3 +/-    1.52      11.1 +/-    1.52  0.190 / 0.260
G11     114.6          36.6                6.2 +/-    0.89       9.5 +/-    0.89  0.130 / 0.410
G13     320.5          13.6                1.3 +/-    2.16       3.4 +/-    2.16  0.180 / 0.410
G17     199.6          18.2                2.9 +/-    1.72       6.6 +/-    1.72  0.040 / 0.030
G18     100.6          17.6                4.9 +/-    2.23      11.5 +/-    2.23  0.030 / 0.030
G28     278.3          53.3                4.0 +/-    3.13       4.9 +/-    3.13  0.110 / 0.230
G30     333.1          61.0                3.0 +/-    0.48       3.4 +/-    0.48  0.100 / 0.210