PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/06/10-04:27:50
G10     285.4          47.3                4.7 +/-    1.35       6.2 +/-    1.35  0.090 / 0.110
G15     48.6           36.6                2.8 +/-    0.63       4.4 +/-    0.63  0.070 / 0.100
G20     349.0          66.2                4.1 +/-    0.72       4.4 +/-    0.72  0.030 / 0.040
G21     58.3           77.5                5.8 +/-    0.66       6.0 +/-    0.66  0.040 / 0.050
G24     105.8          22.7                6.3 +/-    2.10      13.0 +/-    2.10  0.060 / 0.060
G27     308.5          29.9                5.0 +/-    3.23       8.7 +/-    3.23  0.040 / 0.050
G29     168.9          16.2                6.2 +/-    1.34      15.0 +/-    1.34  0.040 / 0.070
G32     207.2          25.4                5.3 +/-    1.55      10.2 +/-    1.55  0.060 / 0.080