PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/10/13-18:42:40
G10     252.0          28.2               11.3 +/-    1.43      20.6 +/-    1.43  0.030 / 0.040
G13     51.9           28.7               10.7 +/-    1.81      19.3 +/-    1.81  0.040 / 0.050
G15     89.8           59.4               11.0 +/-    0.51      12.5 +/-    0.51  0.130 / 0.370
G16     293.9          15.4                9.6 +/-    2.18      23.7 +/-    2.18  0.120 / 0.380
G20     272.1          51.9               12.6 +/-    2.72      15.5 +/-    2.72  0.060 / 0.150
G21     337.2          61.8               11.7 +/-    0.86      13.1 +/-    0.86  0.070 / 0.150
G26     266.8          14.9                9.7 +/-    2.51      24.2 +/-    2.51  0.040 / 0.030
G29     164.9          48.2               12.1 +/-    0.50      15.5 +/-    0.50  0.030 / 0.030