PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/12/11-07:12:30
G02     201.0          23.3                6.7 +/-    2.37      13.7 +/-    2.37  0.130 / 0.220
G06     170.9          56.2                8.1 +/-    0.46       9.5 +/-    0.46  0.120 / 0.190
G13     224.4          11.1                4.9 +/-    3.13      13.4 +/-    3.13  0.230 / 0.460
G17     28.6           55.1                4.6 +/-    0.84       5.5 +/-    0.84  0.260 / 0.510
G19     325.0          70.2                4.5 +/-    0.34       4.7 +/-    0.34  0.050 / 0.080
G24     304.7          35.6                3.9 +/-    2.10       6.2 +/-    2.10  0.050 / 0.080
G28     90.0           39.6                6.4 +/-    0.92       9.3 +/-    0.92  0.080 / 0.090
G30     157.9          12.9                6.6 +/-    1.93      17.2 +/-    1.93  0.070 / 0.120