PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2018/08/16-17:12:40
G02     246.4          75.3                6.5 +/-    0.58       6.7 +/-    0.58  0.200 / 0.240
G05     171.2          18.2               11.1 +/-    2.96      25.6 +/-    2.96  0.150 / 0.160
G06     40.6           53.3                6.8 +/-    0.37       8.2 +/-    0.37  0.090 / 0.100
G12     322.7          59.7                6.0 +/-    0.90       6.8 +/-    0.90  0.110 / 0.110
G17     73.8           19.5                6.1 +/-    2.06      13.6 +/-    2.06  0.040 / 0.040
G19     57.1           39.8                6.6 +/-    0.97       9.7 +/-    0.97  0.040 / 0.040
G24     240.3          33.0                7.9 +/-    0.86      13.0 +/-    0.86  0.100 / 0.220
G25     317.1          15.4                4.3 +/-    2.27      10.7 +/-    2.27  0.330 / 0.390