PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/07-14:13:00
G01     63.2           31.5                6.6 +/-   33.01      11.2 +/-   33.01  0.040 / 0.050
G07     140.9          24.8                7.4 +/-   34.66      14.4 +/-   34.66  0.050 / 0.060
G11     49.2           25.0                6.4 +/-   34.21      12.6 +/-   34.21  0.060 / 0.090
G13     265.7          36.3                8.8 +/-   33.91      13.6 +/-   33.91  0.060 / 0.100
G15     299.5          14.8                3.7 +/-   34.26       9.3 +/-   34.26  0.040 / 0.050
G17     250.9          75.5                8.2 +/-   34.24       8.5 +/-   34.24  0.030 / 0.060
G18     43.8           14.2                4.8 +/-   32.82      12.2 +/-   32.82  0.050 / 0.120
G19     229.2          44.7               10.3 +/-   31.63      14.0 +/-   31.63  0.050 / 0.140
G28     30.7           57.6                6.5 +/-   32.31       7.5 +/-   32.31  0.070 / 0.180
G30     141.9          56.7                6.3 +/-   32.56       7.4 +/-   32.56  0.070 / 0.170