PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/10-04:42:50
G01     95.0           30.4                7.3 +/-    0.68      12.7 +/-    0.68  0.030 / 0.030
G07     121.9          46.9                7.4 +/-    1.91       9.7 +/-    1.91  0.030 / 0.030
G11     71.6           40.5                6.3 +/-    0.61       9.1 +/-    0.61  0.050 / 0.050
G13     298.8          35.0                5.9 +/-    1.78       9.4 +/-    1.78  0.060 / 0.050
G17     210.5          52.2                9.6 +/-    0.84      11.8 +/-    0.84  0.070 / 0.130
G19     212.8          21.1                5.3 +/-    1.97      11.4 +/-    1.97  0.090 / 0.140
G28     336.1          61.7                4.1 +/-    0.56       4.6 +/-    0.56  0.040 / 0.060
G30     80.6           79.8                6.6 +/-    0.40       6.7 +/-    0.40  0.040 / 0.060