PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/07/24-20:12:30
G02     24.4           62.0                9.7 +/-    0.88      10.9 +/-    0.88  0.040 / 0.040
G05     148.5          56.3               13.0 +/-    0.34      15.3 +/-    0.34  0.030 / 0.040
G06     50.9           19.1                8.6 +/-    1.78      19.3 +/-    1.78  0.030 / 0.030
G12     199.3          72.6               11.9 +/-    0.41      12.4 +/-    0.41  0.030 / 0.030
G19     93.7           16.2               10.6 +/-    1.43      25.6 +/-    1.43  0.110 / 0.140
G25     304.8          49.3                9.6 +/-    3.41      12.2 +/-    3.41  0.170 / 0.110
G29     302.1          22.1               10.6 +/-    2.05      22.1 +/-    2.05  0.120 / 0.310