PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/07-16:57:40
G01     108.2          25.0                9.6 +/-    1.14      18.8 +/-    1.14  0.090 / 0.160
G07     105.0          59.4               12.8 +/-    0.47      14.6 +/-    0.47  0.070 / 0.150
G08     42.2           22.4                9.1 +/-    1.48      18.8 +/-    1.48  0.030 / 0.040
G09     174.8          14.2               12.1 +/-    1.67      30.7 +/-    1.67  0.030 / 0.040
G11     91.0           42.9               11.1 +/-    0.28      15.4 +/-    0.28  0.070 / 0.110
G13     310.5          27.9               10.4 +/-    1.61      19.0 +/-    1.61  0.060 / 0.100
G17     206.0          34.8               12.6 +/-    1.60      20.1 +/-    1.60  0.040 / 0.040
G18     81.7           24.2                9.4 +/-    1.11      18.7 +/-    1.11  0.030 / 0.050
G28     315.9          60.8               11.2 +/-    0.80      12.6 +/-    0.80  0.040 / 0.090
G30     20.0           77.6               13.1 +/-    0.59      13.4 +/-    0.59  0.060 / 0.080