PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/09/19-09:58:10
G01     105.0          26.6                5.7 +/-    0.65      10.7 +/-    0.65  0.030 / 0.030
G07     110.5          55.9                6.2 +/-    0.42       7.3 +/-    0.42  0.020 / 0.030
G08     41.5           16.8                2.5 +/-    0.61       5.9 +/-    0.61  0.020 / 0.050
G11     84.3           42.4                5.9 +/-    0.51       8.2 +/-    0.51  0.030 / 0.050
G13     307.7          30.2                1.9 +/-    2.07       3.3 +/-    2.07  0.070 / 0.130
G17     206.1          41.6                4.7 +/-    1.20       6.7 +/-    1.20  0.070 / 0.150
G18     76.6           24.1                4.2 +/-    0.66       8.4 +/-    0.66  0.080 / 0.170
G19     210.3          10.9               -0.9 +/-   13.49      -2.4 +/-   13.49  0.070 / 0.140
G28     320.0          61.0                3.9 +/-    0.69       4.4 +/-    0.69  0.060 / 0.140
G30     24.5           78.9                5.4 +/-    0.42       5.5 +/-    0.42  0.060 / 0.170