PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/03/30-21:42:50
G01     106.9          25.7               12.3 +/-    0.79      23.7 +/-    0.79  0.090 / 0.130
G07     106.8          58.6               14.1 +/-    0.25      16.2 +/-    0.25  0.110 / 0.180
G08     42.5           24.2                9.4 +/-    1.42      18.7 +/-    1.42  0.130 / 0.290
G09     175.5          14.2               17.1 +/-    1.35      43.3 +/-    1.35  0.110 / 0.320
G11     91.8           43.4               12.5 +/-    0.28      17.2 +/-    0.28  0.040 / 0.060
G13     309.8          28.3                9.5 +/-    1.31      17.2 +/-    1.31  0.050 / 0.070
G17     207.0          34.5               14.7 +/-    1.23      23.5 +/-    1.23  0.090 / 0.090
G18     80.8           24.4               11.7 +/-    1.27      23.2 +/-    1.27  0.060 / 0.100
G28     319.3          61.1               11.2 +/-    0.69      12.6 +/-    0.69  0.040 / 0.070
G30     38.2           78.3               12.2 +/-    0.60      12.4 +/-    0.60  0.040 / 0.070