PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/03-18:42:50
G01     61.1           30.9               14.0 +/-    0.94      24.0 +/-    0.94  0.110 / 0.390
G07     141.9          23.5               17.6 +/-    1.59      35.5 +/-    1.59  0.090 / 0.380
G11     48.9           24.9               12.6 +/-    0.83      24.7 +/-    0.83  0.070 / 0.170
G13     263.7          35.6               15.8 +/-    1.33      24.9 +/-    1.33  0.060 / 0.160
G15     295.7          15.9               12.3 +/-    2.21      30.0 +/-    2.21  0.030 / 0.040
G17     251.8          73.6               16.9 +/-    0.52      17.6 +/-    0.52  0.030 / 0.050
G18     43.1           13.6                9.9 +/-    1.32      25.5 +/-    1.32  0.040 / 0.050
G19     231.4          47.9               16.5 +/-    0.55      21.4 +/-    0.55  0.040 / 0.050
G28     34.4           56.9               14.3 +/-    0.73      16.7 +/-    0.73  0.060 / 0.180
G30     143.0          52.9               16.9 +/-    1.30      20.5 +/-    1.30  0.060 / 0.150