PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/05/25-17:42:50
G01     111.8          22.9               13.6 +/-    0.86      27.8 +/-    0.86  0.070 / 0.130
G07     98.2           62.1               12.4 +/-    0.63      13.8 +/-    0.63  0.070 / 0.120
G08     42.9           26.2               11.1 +/-    1.13      21.1 +/-    1.13  0.030 / 0.040
G09     175.7          18.0               13.1 +/-    1.83      30.3 +/-    1.83  0.030 / 0.050
G11     96.7           42.4               13.1 +/-    0.88      18.4 +/-    0.88  0.030 / 0.030
G13     313.1          25.4               14.1 +/-    3.03      27.3 +/-    3.03  0.020 / 0.030
G17     204.8          30.4               13.8 +/-    2.28      24.0 +/-    2.28  0.040 / 0.080
G18     85.9           23.4               10.0 +/-    1.12      20.3 +/-    1.12  0.060 / 0.080
G28     308.7          60.0               13.2 +/-    0.94      15.0 +/-    0.94  0.080 / 0.110
G30     7.9            75.4               13.5 +/-    0.59      14.0 +/-    0.59  0.060 / 0.100