PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/12-07:12:50
G02     201.3          25.1                9.0 +/-    2.14      17.5 +/-    2.14  0.060 / 0.100
G06     170.1          58.3                9.0 +/-    0.62      10.4 +/-    0.62  0.050 / 0.090
G17     30.3           53.7                5.6 +/-    0.75       6.7 +/-    0.75  0.040 / 0.040
G19     331.0          69.8                5.4 +/-    0.43       5.8 +/-    0.43  0.050 / 0.050
G24     303.0          36.7                5.0 +/-    2.19       7.6 +/-    2.19  0.290 / 0.280
G28     92.0           38.5                7.2 +/-    1.38      10.8 +/-    1.38  0.270 / 0.490
G30     158.1          11.2                6.4 +/-    4.10      17.4 +/-    4.10  0.050 / 0.070