PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/14-15:12:10
G02     39.2           50.3                7.8 +/-    1.73       9.8 +/-    1.73  0.020 / 0.030
G05     130.0          68.3                8.4 +/-    0.53       9.0 +/-    0.53  0.030 / 0.050
G12     188.7          55.9                8.6 +/-    0.83      10.1 +/-    0.83  0.040 / 0.040
G25     274.4          59.7                9.1 +/-    2.25      10.3 +/-    2.25  0.030 / 0.030
G29     313.7          34.9                6.1 +/-    1.24       9.7 +/-    1.24  0.060 / 0.050