PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/06-16:27:50
G01     61.1           30.9                8.8 +/-    0.73      15.2 +/-    0.73  0.040 / 0.050
G07     141.9          23.3               10.5 +/-    2.03      21.3 +/-    2.03  0.040 / 0.060
G11     48.6           24.2                7.9 +/-    0.81      15.6 +/-    0.81  0.060 / 0.080
G13     263.5          35.6               10.9 +/-    0.93      17.2 +/-    0.93  0.050 / 0.100
G15     296.7          15.4                9.0 +/-    1.99      22.1 +/-    1.99  0.040 / 0.060
G17     254.5          75.2               11.7 +/-    0.54      12.1 +/-    0.54  0.040 / 0.060
G18     42.8           13.4                7.6 +/-    1.44      19.7 +/-    1.44  0.090 / 0.170
G19     231.2          47.1               12.5 +/-    0.97      16.3 +/-    0.97  0.050 / 0.190
G28     34.1           57.0               10.0 +/-    0.55      11.7 +/-    0.55  0.060 / 0.210
G30     143.2          53.9               10.3 +/-    1.34      12.5 +/-    1.34  0.060 / 0.210