PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/11-11:42:40
G01     127.3          11.4                3.6 +/-    2.94       9.8 +/-    2.94  0.040 / 0.030
G07     51.7           69.5                6.0 +/-    0.48       6.3 +/-    0.48  0.030 / 0.030
G08     49.9           38.3                5.4 +/-    1.25       8.0 +/-    1.25  0.030 / 0.030
G09     176.4          34.4                5.2 +/-    0.56       8.4 +/-    0.56  0.030 / 0.030
G11     117.4          35.2                6.4 +/-    1.22      10.1 +/-    1.22  0.210 / 0.450
G13     321.2          11.5               -1.4 +/-   12.06      -3.8 +/-   12.06  0.250 / 0.370
G17     199.4          15.4                4.6 +/-    2.89      11.2 +/-    2.89  0.250 / 0.240
G18     103.6          16.4                3.4 +/-    1.72       8.1 +/-    1.72  0.190 / 0.310
G28     275.2          52.5                7.1 +/-    3.43       8.7 +/-    3.43  0.130 / 0.250
G30     330.6          59.0                4.7 +/-    0.51       5.4 +/-    0.51  0.130 / 0.220