PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/08-05:12:40
G01     83.0           32.9                7.0 +/-    1.04      11.5 +/-    1.04  0.030 / 0.040
G07     130.7          38.0               10.6 +/-    0.37      15.9 +/-    0.37  0.030 / 0.030
G11     60.5           35.9                4.8 +/-    0.58       7.5 +/-    0.58  0.070 / 0.130
G13     286.9          37.9                4.7 +/-    1.92       7.1 +/-    1.92  0.090 / 0.140
G15     312.3          11.3                2.0 +/-    1.63       5.4 +/-    1.63  0.080 / 0.120
G17     218.9          62.5                9.8 +/-    0.93      10.9 +/-    0.93  0.080 / 0.110
G19     217.4          30.4                9.3 +/-    1.74      16.3 +/-    1.74  0.050 / 0.060
G28     356.4          61.5                6.8 +/-    0.96       7.6 +/-    0.96  0.040 / 0.050
G30     119.4          72.9                8.8 +/-    1.04       9.2 +/-    1.04  0.040 / 0.070